CN211195875U - Be applied to unmanned aerial vehicle's power and slowly start control circuit and unmanned aerial vehicle - Google Patents
Be applied to unmanned aerial vehicle's power and slowly start control circuit and unmanned aerial vehicle Download PDFInfo
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- CN211195875U CN211195875U CN201921032334.1U CN201921032334U CN211195875U CN 211195875 U CN211195875 U CN 211195875U CN 201921032334 U CN201921032334 U CN 201921032334U CN 211195875 U CN211195875 U CN 211195875U
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
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Abstract
The utility model provides a be applied to unmanned aerial vehicle's power and slowly start control circuit and unmanned aerial vehicle, the power slowly starts control circuit and includes: a power module configured to generate a first power signal; the energy storage module is connected in series with a power supply loop of the unmanned aerial vehicle and is configured to charge when detecting that the power supply module is connected or discharge when detecting that the power supply module is disconnected and generate a second power supply signal; the voltage detection module is connected with the energy storage module and is configured to generate a starting signal when detecting that the voltage of the second power supply signal is greater than a preset voltage; the switch module is connected with the power supply module, the voltage detection module and the electric equipment of the unmanned aerial vehicle, and is configured to conduct a power supply loop of the unmanned aerial vehicle according to the starting signal so as to output a second power supply signal to the electric equipment of the unmanned aerial vehicle; the embodiment of the utility model provides a through the charging or the step of discharging in order to prevent the impulse current that the power produced at the break-make in-process to play the effect that the power slowly starts control.
Description
Technical Field
The utility model belongs to the technical field of the electronic circuit, especially, relate to a be applied to unmanned aerial vehicle's power and slowly start control circuit and unmanned aerial vehicle.
Background
With the gradual popularization of unmanned aerial vehicles, technicians also put forward stricter requirements on the flight safety and the operation stability of the unmanned aerial vehicles, however, the safety of the power supply of the unmanned aerial vehicle has extremely important influence on the flight control performance of the unmanned aerial vehicle, and the improvement of the safety of the on-off control of the power supply has great practical significance on the physical safety of the unmanned aerial vehicle; however, in the unmanned aerial vehicle in the conventional technology, a power supply protection circuit is not additionally arranged, so that a large impact current is easily generated in the process of plugging and unplugging a high-voltage power supply, and the impact current can enable electronic components to generate electronic sparks, so that the electronic components in the unmanned aerial vehicle generate a series of faults and even a safety quilt; therefore, the control safety of the power supply of the unmanned aerial vehicle in the traditional technical method is lower
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a be applied to unmanned aerial vehicle's power and slowly start control circuit and unmanned aerial vehicle aims at solving among the traditional technical scheme that unmanned aerial vehicle's power will produce great impulse current at the plug in-process, and the flight control security that leads to unmanned aerial vehicle is lower, produces the problem of electron spark easily.
The utility model discloses a first aspect provides a power of being applied to unmanned aerial vehicle slowly starts control circuit, include:
a power module configured to generate a first power signal;
the energy storage module is connected in series with a power supply loop of the unmanned aerial vehicle, is configured to charge when detecting that the power supply module is connected, or discharges when detecting that the power supply module is disconnected, and generates a second power supply signal;
the voltage detection module is connected with the energy storage module and is configured to generate a starting signal when detecting that the voltage of the second power supply signal is greater than a preset voltage; and
and the power module, the voltage detection module and the electric equipment of the unmanned aerial vehicle are connected and configured to be conducted according to the starting signal on a power supply loop of the unmanned aerial vehicle so as to output the second power signal to the switch module of the electric equipment of the unmanned aerial vehicle.
In one embodiment thereof, the energy storage module comprises:
the charging unit is configured to conduct a charging branch according to the first power supply signal to generate a charging signal when the power supply module is detected to be accessed;
a discharging unit configured to turn on a discharging branch to generate a discharging signal when the power module is detected to be turned off; and
and the energy storage unit is connected with the voltage detection module, the charging branch and the discharging branch, and is configured to charge according to the charging signal and discharge according to the discharging signal so as to generate a second power supply signal.
In one embodiment, the voltage detection module comprises:
the protection unit is connected with the energy storage module and is configured to perform soft start protection on the energy storage module according to the second power supply signal; and
and the differential comparison unit is connected with the energy storage module and the switch module, and is configured to detect whether the voltage of the second power supply signal is greater than the preset voltage or not, and generate the turn-on signal when the voltage of the second power supply signal is greater than the preset voltage.
In one embodiment thereof, the energy storage module comprises:
the circuit comprises a first capacitor, a second capacitor, a first resistor, a second resistor, a first diode, a second diode and a first switch tube;
the first end of the first capacitor and the first end of the first resistor are connected together to form a power supply detection end of the energy storage module, and the power supply detection end of the energy storage module is used for being connected to the power supply module;
the second end of the first resistor, the first end of the second resistor, the anode of the first diode and the cathode of the second diode are connected to the control end of the first switch tube in common, and the cathode of the first diode, the first conducting end of the first switch tube and the first end of the second capacitor are connected to the voltage detection module in common;
the second end of the first capacitor, the second end of the second resistor, the anode of the second diode, the second conducting end of the first switch tube and the second end of the second capacitor are connected to the ground in common.
In one embodiment, the protection unit includes:
starting a protection chip, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first inductor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor and a third diode;
the power input pin of the start protection chip is connected with the power module, the power control pin of the start protection chip is connected with the energy storage module, the clock synchronization pin of the start protection chip is connected with the first end of the third resistor, the first end of the third capacitor is connected with the electric energy trigger pin of the start protection chip, the first end of the fourth resistor and the first end of the fifth capacitor are connected with the electric energy compensation pin of the start protection chip in a shared mode, and the second end of the fourth resistor is connected with the first end of the fourth capacitor;
a second end of the third resistor, a second end of the third capacitor, a second end of the fourth capacitor, a second end of the fifth capacitor, a ground pin of the start protection chip, a first end of the fifth resistor, an anode of the third diode, a first end of the seventh capacitor, a first end of the eighth capacitor, and a first end of the ninth capacitor are connected to ground in common;
the state control pin of the start protection chip is connected with the first end of the sixth capacitor, and the second end of the sixth capacitor, the first end of the first inductor and the cathode of the third diode are connected with the switch pin of the start protection chip in common;
a second end of the fifth resistor and a first end of the sixth resistor are connected to a power supply feedback pin of the start protection chip in common, and a second end of the sixth resistor, a second end of the seventh capacitor, a second end of the eighth capacitor and a second end of the ninth capacitor are connected to a first end of the seventh resistor in common;
and the second end of the seventh resistor is used for outputting the second power supply signal after soft start protection.
In one embodiment, the differential comparison unit includes:
the differential comparison chip comprises an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fourth diode, a fifth diode, a tenth capacitor, an eleventh capacitor and a second switching tube;
a first end of the eighth resistor, a first end of the tenth resistor and a first end of the thirteenth resistor are connected to the energy storage module in common;
the second end of the eighth resistor, the voltage input negative pin of the differential comparison chip and the first end of the ninth resistor are connected to the preset voltage in common;
a second end of the tenth resistor, a first end of the twelfth resistor and a first end of the eleventh resistor are commonly connected to the control end of the second switch tube, a second end of the twelfth resistor is connected to an anode of the fifth diode, and a cathode of the fifth diode, a first conduction end of the second switch tube and a first end of the eleventh capacitor are commonly connected to a voltage input positive pin of the differential comparison chip;
a second end of the eleventh capacitor, a second conduction end of the second switch tube, a second end of the eleventh resistor and a second end of the ninth resistor are connected to the ground in common;
the grounding pin of the differential comparison chip is grounded;
a second end of the thirteenth resistor, a cathode of the fourth diode, a first end of the tenth capacitor, and a first end of the fourteenth resistor are all connected to the power pin of the differential comparison chip, an anode of the fourth diode is grounded, and a second end of the tenth capacitor is grounded;
and a second end of the fourteenth resistor and a signal output pin of the differential comparison chip are connected to the switch module in common.
In one embodiment thereof, the switch module comprises a third switch tube;
the control end of the third switch tube is connected with the voltage detection module, the first conduction end of the third switch tube is connected with the power supply module, and the second conduction end of the third switch tube is connected with the electric equipment.
In one embodiment, the third switching tube is a triode or a MOS tube.
In one embodiment, the power module is a lithium battery.
A second aspect of the embodiments provides an unmanned aerial vehicle, include:
the power supply slow starting control circuit is used for controlling the power supply slow starting; and
and the electric equipment is connected with the power supply slow start control circuit.
The power supply slow start control circuit applied to the unmanned aerial vehicle realizes charging or discharging through the energy storage module, when the power supply module is connected or not connected, the function of electric energy delay is realized by utilizing charging time or discharging time, and only when the voltage amplitude generated in the charging or discharging process is greater than the preset voltage, the electric equipment of the unmanned aerial vehicle can be connected with stable and reliable electric energy to realize the power-on function; therefore the embodiment of the utility model provides an utilize the process of charging or discharging to restrain power module at the produced impulse current of power module plug in-process to reach the effect that the power slowly started, greatly ensured unmanned aerial vehicle's power control security and stability, and then unmanned aerial vehicle can insert rated electric energy all the time, can compatibly be applicable to the industrial technology field of each difference, practical value is higher.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a power supply slow start control circuit applied to an unmanned aerial vehicle according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an energy storage module according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of an energy storage module according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a voltage detection module according to an embodiment of the present invention;
fig. 5 is a schematic circuit diagram of a protection unit according to an embodiment of the present invention;
fig. 6 is a schematic circuit diagram of a differential comparison unit according to an embodiment of the present invention;
fig. 7 is a schematic structural view of the unmanned aerial vehicle provided by an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, an embodiment of the present invention provides a schematic structural diagram of a power slow start control circuit 10 applied to an unmanned aerial vehicle, where the power slow start control circuit 10 is connected to an electric device 20, and the power slow start control circuit 10 delays electric energy in a process of turning on or turning off a power supply, so as to prevent the electric device 20 in the unmanned aerial vehicle from being damaged by an impulse current; for convenience of explanation, only the parts related to the present embodiment are shown, and detailed as follows:
the power supply slow start control circuit 10 includes: the power supply module 101, the energy storage module 102, the voltage detection module 103 and the switch module 104.
Wherein the power supply module 101 is configured to generate a first power supply signal.
The power supply module 101 has an electric energy generating and outputting function, the first power supply signal contains stable direct current electric energy, and rated electric energy can be continuously output through the power supply module 101 so as to guarantee the power supply safety and effectiveness of the unmanned aerial vehicle; therefore, the direct current electric energy output by the power module 101 can be used as the original electric energy for supplying power to the unmanned aerial vehicle, and the unmanned aerial vehicle has higher flight continuity and control flexibility.
The energy storage module 102 is connected in series to a power supply loop of the unmanned aerial vehicle, and is configured to charge when the detection power module 101 is connected, or discharge when the detection power module 101 is cut off, and generate a second power signal.
The power supply loop of the unmanned aerial vehicle can transmit electric energy, and then the electric equipment 20 on the unmanned aerial vehicle realizes the power-on function through the power supply loop; the energy storage module 102 in this embodiment may detect whether the power supply module 101 is connected, and perform a charging operation or a discharging operation according to a detection result; for example, when the power module 101 is connected to the energy storage module 102, the energy storage module 102 may implement a charging function according to the first power signal; on the contrary, when the power module 101 is not connected to the energy storage module 102, the energy storage module 102 realizes the discharging function; the electric energy output by the power supply module 101 can be adjusted through the charging or discharging of the energy storage module 102; therefore, in the process of plugging and unplugging the power module 101, the energy storage module 102 realizes delayed transmission of electric energy in the power supply loop by charging or discharging so as to eliminate impulse current; and then the second power supply signal through energy storage module 102 output has higher electric energy stability and security, has avoided the physical damage that impulse current caused to consumer 20 in the unmanned aerial vehicle.
The voltage detection module 103 is connected to the energy storage module 102 and configured to generate a turn-on signal when detecting that the voltage of the second power signal is greater than a preset voltage.
When the power detection module 103 monitors that the voltage of the second power signal is less than or equal to the preset voltage, a turn-off signal is generated.
The voltage detection module 103 has a function of detecting a voltage amplitude, and since the energy storage module 102 also changes the electric energy output by the energy storage module 102 in the charging time or the discharging time, the voltage amplitude of the second power signal output by the energy storage module 102 also fluctuates greatly; optionally, the preset voltage is a rated voltage of the electric equipment 20 in the unmanned aerial vehicle, and if it is detected that the voltage of the second power signal is greater than the rated voltage of the electric equipment 20, it indicates that the electric energy output by the energy storage module 102 has satisfied a safe power supply condition of the electric equipment 20, and the power detection module 103 generates a start signal to start a power supply step for the electric equipment 20; on the contrary, if the voltage of the second power signal is less than or equal to the rated voltage of the electrical equipment 20, it indicates that the electric energy output by the energy storage module 102 does not meet the safe power supply condition of the electrical equipment 20, the power detection module 103 generates a turn-off signal and stops the power supply step of the power supply equipment 20 to prevent the electrical equipment 20 from being in an under-voltage power supply state; therefore, the voltage of the second power signal is accurately detected by the power detection module 103, so that the accurate control of the power supply process of the unmanned aerial vehicle is realized, and the power supply safety and reliability of the electric equipment 20 are further guaranteed.
The switch module 104 turns off the power supply loop of the unmanned aerial vehicle according to the turn-off signal, so that the power supply device 20 of the unmanned aerial vehicle cannot access the second power supply signal.
The switch module 104 has a switching-on or switching-off function to change the electric energy transmission process of the power supply loop of the unmanned aerial vehicle; when the voltage of the second power signal meets the safe power supply condition, the switch module 104 controls the power supply loop to be conducted, the electric equipment 20 of the unmanned aerial vehicle is connected to the second power signal through the power supply loop to realize the power-on function, and at the moment, the electric equipment 20 is connected to rated electric energy to maintain a normal flight control state; on the contrary, if the voltage of the second power signal cannot meet the safe power supply condition of the electric equipment 20, the switch module 104 controls the power supply loop to be turned off, and the electric equipment 20 of the unmanned aerial vehicle is in a power-off shutdown state; in the embodiment, the on-state or off-state of the power supply loop can be flexibly changed through the switch module 104, and the control response precision is extremely high; the consumer 20 can insert the second power signal in order to realize gentle start-up, has ensured consumer 20's operation security and reliability, and consumer 20's electric energy input state can realize the self-adaptation and change, and unmanned aerial vehicle has higher security and work efficiency, has prevented that the spike electric energy of power when switching on or shutting off from causing the impact damage to consumer 20's physical security.
It should be noted that, the electric equipment 20 herein can generally refer to various types of electronic components on the unmanned aerial vehicle, for example, the electric equipment 20 includes a controller of the unmanned aerial vehicle, and then all electronic components on the unmanned aerial vehicle open through the power supply circuit to realize the power-on function, have ensured the efficiency of power supply.
In the structural schematic of the power supply slow start control circuit 10 shown in fig. 1, when the power supply module 101 is connected or not connected, the charging or discharging step of the energy storage module 102 is used to suppress the generation of an impulse current in the power supply loop, thereby maintaining the physical safety performance of the electric equipment 20; the voltage safety detection function of the second power signal is realized through the voltage detection module 103, so that the electric equipment 20 can be always connected with rated electric energy, and the power supply efficiency of the electric equipment 20 is improved; therefore, the embodiment has a delay control effect on the electric energy of the power module 101 in the plugging process, so that the electric energy transmitted in the power supply loop is always maintained in a stable state, the power supply safety and compatibility of the electric equipment 20 are guaranteed, the effect of power supply slow start control in the unmanned aerial vehicle is realized, and the practical value is high; consequently unmanned aerial vehicle in this embodiment can be in safety, reliable flight control state all the time, unmanned aerial vehicle produced great impulse current easily at power plug in-process among the solution conventional art, seriously harm electronic components's security among the unmanned aerial vehicle, the power supply security that leads to consumer among the unmanned aerial vehicle is lower, electronic component produces the electron spark easily at power plug in-process, unmanned aerial vehicle breaks down easily at the flight control in-process problem.
As an alternative implementation, fig. 2 shows a schematic structure of the energy storage module 102 provided in this embodiment, please refer to fig. 2, where the energy storage module 102 includes: the charging unit 1021, the discharging unit 1022, and the energy storage unit 1023, so the energy storage module 102 in this embodiment has a simplified circuit module structure.
The charging unit 1021 is configured to, when detecting that the power module 101 is connected, turn on the charging branch according to the first power signal to generate a charging signal.
The charging unit 1021 can detect whether the power module 101 is connected, when the power module 101 is connected, the charging unit 1021 is connected to a first power signal, the charging branch is conducted through the charging unit 1021, and the energy storage module 102 can realize a charging function through electric energy output by the energy storage module 101; therefore, the energy storage module 102 is driven to enter a charging state by the charging signal output by the charging unit 1021.
The discharging unit 1022 is configured to detect that the power module 101 is turned off, and then turn on the discharging branch to generate the discharging signal.
When the power module 101 and the energy storage module 102 are not physically connected, the energy storage module 102 cannot access the second power signal, the energy storage module 102 can enter a discharging step through the discharging signal output by the discharging unit 1022, and the discharging branch can output electric energy outwards to ensure the power supply continuity of the electric equipment 20, so that the electric energy transmission safety and stability of the energy storage module 102 are ensured.
The energy storage unit 1023 is connected to the voltage detection module 103, the charging branch and the discharging branch, and is configured to charge according to the charging signal and discharge according to the discharging signal to generate a second power signal.
The energy storage unit 1023 has an electric energy storage function, when the energy storage module 102 is connected to the power supply module 101, the energy storage unit 1023 executes a charging step according to a charging signal, and the energy storage unit 1023 is connected to a first power supply signal through a charging branch circuit to realize a self-charging function; illustratively, the energy storage unit 1023 is connected in series in a power supply loop of the electric device 20, when the power supply module 101 is disconnected from the energy storage module 102, the energy storage unit 1023 executes a discharging step according to the discharging signal, and the energy storage unit 1023 transmits electric energy to the outside through a discharging branch circuit to realize a discharging function of the energy storage unit 1023; therefore, the energy storage unit 1023 can realize the charge and discharge control function of the energy storage unit, and the transmission of electric energy is realized by utilizing the charge branch and the discharge branch, so that the transmission stability and reliability of the second power supply signal are greatly guaranteed; the embodiment generates the second power signal by using the charging step and the discharging step of the energy storage unit 1023, and the energy storage unit 1023 can play a role of electric energy buffering when charging or discharging so as to prevent the occurrence of inrush current in the second power signal, so that the energy storage unit 1023 can output more stable electric energy, and the physical safety and the control stability of the electric equipment 20 are ensured through the second power signal.
As an alternative implementation, fig. 3 shows a schematic circuit structure of the energy storage module 102 provided in this embodiment, please refer to fig. 3, where the energy storage module 102 includes: the circuit comprises a first capacitor C1, a second capacitor C2, a first resistor R1, a second resistor R2, a first diode D1, a second diode D2 and a first switch tube M1.
A first end of the first capacitor C1 and a first end of the first resistor R1 are connected to form a power detection end VP of the energy storage module 102, and the power detection end VP of the energy storage module 102 is used for being connected to the power module 101; and the energy storage module 102 can accurately sense the on state or the off state of the power supply module 101.
The first capacitor C1 may perform a filtering function on the first power signal to ensure stability and compatibility of the first power signal during transmission.
The second terminal of the first resistor R1, the first terminal of the second resistor R2, the anode of the first diode D1, and the cathode of the second diode D2 are commonly connected to the control terminal of the first switch M1, and the cathode of the first diode D1, the first conducting terminal of the first switch M1, and the first terminal of the second capacitor C2 are commonly connected to the voltage detection module 103.
The second terminal of the first capacitor C1, the second terminal of the second resistor R2, the anode of the second diode D2, the second conducting terminal of the first switch tube M1, and the second terminal of the second capacitor C2 are commonly connected to the ground GND.
In the present embodiment, the second capacitor C2 has the function of storing electric energy to realize the functions of charging and discharging; therefore, when the power detection terminal VP of the energy storage module 102 is connected to the power module 101, the first switch tube M1 is turned off, and the first power signal is output to the second capacitor C2 through the first diode D1 to implement the charging function; when the power detection end VP of the energy storage module 102 cannot be connected to the power module 101, the first switch tube M1 is turned on, and the electric energy stored in the second capacitor C2 is discharged through the first switch tube M1; the second diode D2 can realize a voltage stabilizing function in the process of turning on or off the first switching tube M1, and the electric energy safety of the second capacitor C2 in the charging process and the discharging process is guaranteed.
Therefore, in the present embodiment, the first switching tube M1 is turned off or turned off by the physical connection state between the energy storage module 102 and the power supply module 101, and the second capacitor C2 realizes flexible charging and discharging steps; during the process of charging or discharging the second capacitor C2, the voltage of the second power signal output by the energy storage module 102 will also change correspondingly; therefore, the embodiment suppresses the impact current generated when the power supply is switched on or switched off through the charging process and the discharging process of the second capacitor C2, so that the second power supply signal has a more stable voltage amplitude, and the physical safety performance of the electric equipment 20 in the unmanned aerial vehicle is guaranteed.
As an optional implementation manner, fig. 4 shows a schematic structure of the voltage detection module 103 provided in this embodiment, please refer to fig. 4, where the voltage detection module 103 includes: a protection unit 1031, and a differential comparison unit 1032.
The protection unit 1031 is connected to the energy storage module 102 and configured to perform soft-start protection on the energy storage module 102 according to the second power signal.
At the moment when the energy storage module 102 is turned on or off with the power supply module 101, the energy storage module 102 may have a current sudden change phenomenon in a charging step or a discharging step, so that the electric energy output by the energy storage module 102 can be kept stably changed by the protection unit 1031, the voltage of the second power supply signal may be changed slowly, and the charging safety and the discharging safety of the energy storage module 102 are ensured; the energy storage module 102 outputs a second power signal under a safe condition, the second power signal contains more gentle electric energy, the power supply efficiency and the power supply safety of the electric equipment 20 are guaranteed, and internal electronic components of the power supply slow start control circuit 10 have higher physical safety performance.
The differential comparison unit 1032 is connected to the energy storage module 102 and the switch module 104, and configured to detect whether the voltage of the second power signal is greater than a preset voltage, and generate a turn-on signal when the voltage of the second power signal is greater than the preset voltage.
When the differential comparison unit 1032 is capable of comparing the difference amplitude between the voltage of the second power supply signal and the preset voltage, and when the voltage of the second power supply signal is greater than the preset voltage, the power supply slow-start control circuit 10 is caused to implement power-on control for the electric device 20.
The differential comparison unit 1032 has a function of voltage detection, and when the energy storage module 102 outputs the second power signal to the differential comparison unit 1032 and the voltage of the second power signal detected by the differential comparison unit 1032 is less than or equal to the preset voltage, the turn-off signal is generated.
Therefore, the differential comparison unit 1032 in this embodiment can implement a voltage comparison function, and further flexibly control the switch module 104 to be turned on or off according to a voltage difference between the voltage of the second voltage signal and a preset voltage, so that the electrical device 20 can access a safer second power signal, thereby ensuring the power-on safety and reliability of the electrical device 20; therefore, in the present embodiment, the voltage of the second power signal is accurately detected by the differential comparison unit 1032, power supply safety and power access stability of the electric device 20 are ensured, and the differential comparison unit 1023 has higher control flexibility and stability.
As an optional implementation manner, fig. 5 shows a schematic circuit structure of the protection unit 1031 provided in this embodiment, please refer to fig. 5, where the protection unit 1031 includes a startup protection chip U1, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first inductor L1, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, and a third diode D3.
A power input pin VIN of the start protection chip U1 is connected with the power module 101, the power module 101 outputs a first power signal to the start protection chip U1, and the physical safety and the power supply stability of the start protection chip U1 can be guaranteed through the first power signal; the power control pin EN of the start protection chip U1 is connected to the energy storage module 102, and when the energy storage module 102 is charged or discharged, the power control pin EN can suppress fluctuation of electric energy inside the energy storage module 102 by starting the protection chip U1, so that the energy storage module 102 outputs a better and stable second power signal.
The clock synchronization pin RT _ C L K of the start-up protection chip U1 is connected with the first end of the third resistor R3, and the start-up protection chip U1 can keep good signal processing function through the clock synchronization pin RT _ C L K.
The first end of the third capacitor C3 is connected to the power trigger pin SS _ TR of the start protection chip U1, and the start protection chip U1 can realize a more sensitive soft start protection function through the power trigger pin SS _ TR.
The first end of the fourth resistor R4 and the first end of the fifth capacitor C5 are connected to an electric energy compensation pin COMP of the start protection chip U1, the start protection chip U1 can keep the internal electric energy stable through the electric energy compensation pin COMP, and the anti-interference performance of the start protection chip U1 is improved; the second terminal of the fourth resistor R4 is connected to the first terminal of the fourth capacitor C4.
The second end of the third resistor R3, the second end of the third capacitor C3, the second end of the fourth capacitor C4, the second end of the fifth capacitor C5, the ground pin of the start-up protection chip U1, the first end of the fifth resistor R5, the anode of the third diode D3, the first end of the seventh capacitor C7, the first end of the eighth capacitor C8, and the first end of the ninth capacitor C9 are commonly connected to the ground GND.
The state control pin BOOT of the start protection chip U1 is connected with the first end of the sixth capacitor C6, the start protection chip U1 can realize the regulation and control of the self state through the state control pin BOOT, the second end of the sixth capacitor C6, the first end of the first inductor L1 and the cathode of the third diode D3 are connected with the switch pin SW of the start protection chip U1 in a sharing mode, and the start protection chip U1 can enter a normal working state or a stop state through the switch pin SW.
The second end of the fifth resistor R5 and the first end of the sixth resistor R6 are commonly connected to the power feedback pin FB of the start-up protection chip U1, and the second end of the sixth resistor R6, the second end of the seventh capacitor C7, the second end of the eighth capacitor C8, and the second end of the ninth capacitor C9 are commonly connected to the first end of the seventh resistor R7.
A second end of the seventh resistor R7 is used for outputting the second power supply signal after soft start protection; after the start protection chip U1 suppresses the peak current of the energy storage module 102 during charging or discharging, the power supply feedback pin FB of the start protection chip U1 can output more stable electric energy, thereby ensuring the safety of each electronic component in the energy storage module 102.
Illustratively, the model of the startup protection chip U1 is: TPS54561DPRRQ 1.
As an alternative embodiment, fig. 6 shows a schematic circuit structure of the differential comparison unit 1032 provided in this embodiment, and referring to fig. 6, the differential comparison unit 1032 includes: the differential comparison chip is composed of a differential comparison chip U2, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a fourth diode D4, a fifth diode D5, a tenth capacitor C10, an eleventh capacitor C11 and a second switch tube M2.
A first end of the eighth resistor R8, a first end of the tenth resistor R10 and a first end of the thirteenth resistor R13 are commonly connected to the energy storage module 102; furthermore, the energy storage module 102 can rapidly output the second power signal to the differential comparison unit 1032, thereby ensuring the compatibility of the second power signal in the transmission process.
The second end of the eighth resistor R8, the voltage input negative pin IN-of the differential comparison chip U2 and the first end of the ninth resistor R9 are connected to a preset voltage IN common; the preset voltage is used as the reference voltage information provided by the differential comparison chip U2 in the process of voltage judgment.
A second end of the tenth resistor R10, a first end of the twelfth resistor R12 and a first end of the eleventh resistor R11 are commonly connected to the control end of the second switch tube M2, a second end of the twelfth resistor R12 is connected to an anode of the fifth diode D5, a cathode of the fifth diode D5, a first conducting end of the second switch tube M2 and a first end of the eleventh capacitor C11 are commonly connected to a voltage input anode pin IN + of the differential comparison chip U2; and the differential comparison chip U2 can use the voltage difference between the voltage input positive pin IN + and the voltage input negative pin IN-to determine whether the voltage of the second power signal meets the rated charging condition of the electric equipment 20, and the determination precision is high.
The second terminal of the eleventh capacitor C11, the second conducting terminal of the second switch tube M2, the second terminal of the eleventh resistor R11, and the second terminal of the ninth resistor R9 are commonly connected to the ground GND.
The ground pin of the differential comparison chip U2 is grounded to GND.
The second end of the thirteenth resistor R13, the cathode of the fourth diode D4, the first end of the tenth capacitor C10, and the first end of the fourteenth resistor R14 are all connected to the power pin of the differential comparison chip U2, so that the second power signal output by the energy storage module 102 can maintain the working stability and safety of the differential comparison chip U2, and the differential comparison chip U2 has higher detection efficiency and detection accuracy for the voltage of the second power signal; the anode of the fourth diode D4 is grounded to GND, wherein the fourth diode D4 can perform a voltage stabilizing function for the second power signal, and the second terminal of the tenth capacitor C10 is grounded to GND.
The second end of the fourteenth resistor R14 and the signal output pin OUT of the differential comparison chip U2 are connected to the switch module 104 in common; after the voltage detection of the differential comparison chip U2 for the second power signal is completed, the differential comparison chip U2 generates an on signal or an off signal according to the detection result, and outputs the on signal or the off signal to the switch module 104, thereby ensuring the control response accuracy of the switch module 104.
Illustratively, the model of the differential comparison chip U2 is T L331 IDBVR.
As an alternative embodiment, the switch module 104 includes a third switch tube; the control end of the third switch tube is connected with the voltage detection module 103, and then the voltage detection module 103 outputs a turn-on signal or a turn-off signal to the control end of the third switch tube; the first conducting end of the third switch tube is connected with the power supply module 101, and the second conducting end of the third switch tube is connected with the electric equipment 20.
Illustratively, the third switching tube is a triode or an MOS tube; for example, the third switch tube is an NMOS tube, the gate of the NMOS tube is the control end of the third switch tube, the source of the NMOS tube is the first conducting end of the third switch tube, and the drain of the NMOS tube is the second conducting end of the third switch tube.
When the voltage detection module 103 outputs the start signal to the control end of the third switching tube, the first conducting end of the third switching tube and the second conducting end of the third switching tube can be conducted through the start signal, so that the power supply loop of the electric device 20 is also conducted, and the electric device 20 is connected to the second power signal through the power supply loop to realize the power-on function; on the contrary, when the voltage detection module 103 outputs the turn-off signal to the control end of the third switching tube, the first conducting end of the third switching tube and the second conducting end of the third switching tube are disconnected through the turn-off signal, the power supply loop of the electric equipment 20 is also disconnected, and the electric equipment 20 is in a power-off shutdown state; therefore, in this embodiment, the third switching tube is connected in series in the power supply loop of the electric device 20, and the power supply loop of the electric device 20 can be adaptively turned on or off by changing the on or off state of the third switching tube, so that the power-on safety and stability of the electric device 20 are greatly protected; therefore, the switch module 104 has a simplified circuit structure, the control response speed of the switch module 104 is high, and the control response performance of the power supply in the unmanned aerial vehicle is improved.
Optionally, the power module 101 is a lithium battery; and then power module 101 can output large capacity dc power in real time, has ensured the power supply continuity and the security of consumer 20.
Fig. 7 shows a structural schematic diagram of the unmanned aerial vehicle 70 provided in this embodiment, please refer to fig. 7, the unmanned aerial vehicle 70 includes: the power supply slow start control circuit 10 and the electric equipment 20 applied to the unmanned aerial vehicle are as described above, and the electric equipment 20 is connected with the power supply slow start control circuit 10; slowly start control circuit 10 through the power and export stable direct current electric energy to consumer 20, ensured consumer 20's power supply security and reliability, unmanned aerial vehicle 70 can keep more stable flight control state.
Referring to the embodiments of fig. 1 to 6, the power supply slow start control circuit 10 in this embodiment not only can provide rated dc power to the electric equipment 20 to maintain the normal function of the electric equipment 20, but also can eliminate the impact current in the input power of the electric equipment 20 by using the charging delay and the discharging delay in the process of plugging and unplugging the power supply, so that the electric equipment 20 can always access safe and stable dc power, the physical safety and effectiveness of the electric equipment 20 are ensured, and the phenomenon of electronic spark in the electric equipment 20 is prevented; therefore, the unmanned aerial vehicle 70 in the embodiment has higher physical safety and a wider application range, brings good use experience for users, and effectively solves the problem that the unmanned aerial vehicle is easily damaged by impact current in the power on-off control process in the traditional technology, so that electronic components easily generate electronic sparks and the flight safety of the unmanned aerial vehicle is damaged.
Various embodiments are described herein for various devices, circuits, apparatuses, systems, and/or methods. Numerous specific details are set forth in order to provide a thorough understanding of the overall structure, function, manufacture, and use of the embodiments as described in the specification and illustrated in the accompanying drawings. However, it will be understood by those skilled in the art that the embodiments may be practiced without such specific details. In other instances, well-known operations, components and elements have been described in detail so as not to obscure the embodiments in the description. It will be appreciated by those of ordinary skill in the art that the embodiments herein and shown are non-limiting examples, and thus, it can be appreciated that the specific structural and functional details disclosed herein may be representative and do not necessarily limit the scope of the embodiments.
Reference throughout the specification to "various embodiments," "in an embodiment," "one embodiment," or "an embodiment," etc., means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, appearances of the phrases "in various embodiments," "in some embodiments," "in one embodiment," or "in an embodiment," or the like, in places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. Thus, a particular feature, structure, or characteristic illustrated or described in connection with one embodiment may be combined, in whole or in part, with features, structures, or characteristics of one or more other embodiments without presuming that such combination is not an illogical or functional limitation. Any directional references (e.g., plus, minus, upper, lower, upward, downward, left, right, leftward, rightward, top, bottom, above …, below …, vertical, horizontal, clockwise, and counterclockwise) are used for identification purposes to aid the reader's understanding of the present disclosure, and do not create limitations, particularly as to the position, orientation, or use of the embodiments.
Although certain embodiments have been described above with a certain degree of particularity, those skilled in the art could make numerous alterations to the disclosed embodiments without departing from the scope of this disclosure. Joinder references (e.g., attached, coupled, connected, and the like) are to be construed broadly and may include intermediate members between a connection of elements and relative movement between elements. Thus, connection references do not necessarily imply that two elements are directly connected/coupled and in a fixed relationship to each other. The use of "for example" throughout this specification should be interpreted broadly and used to provide non-limiting examples of embodiments of the disclosure, and the disclosure is not limited to such examples. It is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative only and not limiting. Changes in detail or structure may be made without departing from the disclosure.
The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a be applied to unmanned aerial vehicle's power and slowly start control circuit which characterized in that includes:
a power module configured to generate a first power signal;
the energy storage module is connected in series with a power supply loop of the unmanned aerial vehicle, is configured to charge when detecting that the power supply module is connected, or discharges when detecting that the power supply module is disconnected, and generates a second power supply signal;
the voltage detection module is connected with the energy storage module and is configured to generate a starting signal when detecting that the voltage of the second power supply signal is greater than a preset voltage; and
and the power module, the voltage detection module and the electric equipment of the unmanned aerial vehicle are connected and configured to be conducted according to the starting signal on a power supply loop of the unmanned aerial vehicle so as to output the second power signal to the switch module of the electric equipment of the unmanned aerial vehicle.
2. The power supply slow start control circuit according to claim 1, wherein the energy storage module comprises:
the charging unit is configured to conduct a charging branch according to the first power supply signal to generate a charging signal when the power supply module is detected to be accessed;
a discharging unit configured to turn on a discharging branch to generate a discharging signal when the power module is detected to be turned off; and
and the energy storage unit is connected with the voltage detection module, the charging branch and the discharging branch, and is configured to charge according to the charging signal and discharge according to the discharging signal so as to generate a second power supply signal.
3. The power supply slow start control circuit according to claim 1, wherein the voltage detection module includes:
the protection unit is connected with the energy storage module and is configured to perform soft start protection on the energy storage module according to the second power supply signal; and
and the differential comparison unit is connected with the energy storage module and the switch module, and is configured to detect whether the voltage of the second power supply signal is greater than the preset voltage or not, and generate the turn-on signal when the voltage of the second power supply signal is greater than the preset voltage.
4. The power supply slow start control circuit according to claim 1, wherein the energy storage module comprises:
the circuit comprises a first capacitor, a second capacitor, a first resistor, a second resistor, a first diode, a second diode and a first switch tube;
the first end of the first capacitor and the first end of the first resistor are connected together to form a power supply detection end of the energy storage module, and the power supply detection end of the energy storage module is used for being connected to the power supply module;
the second end of the first resistor, the first end of the second resistor, the anode of the first diode and the cathode of the second diode are connected to the control end of the first switch tube in common, and the cathode of the first diode, the first conducting end of the first switch tube and the first end of the second capacitor are connected to the voltage detection module in common;
the second end of the first capacitor, the second end of the second resistor, the anode of the second diode, the second conducting end of the first switch tube and the second end of the second capacitor are connected to the ground in common.
5. The power supply slow start control circuit according to claim 3, wherein the protection unit includes:
starting a protection chip, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first inductor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a seventh capacitor, an eighth capacitor, a ninth capacitor and a third diode;
the power input pin of the start protection chip is connected with the power module, the power control pin of the start protection chip is connected with the energy storage module, the clock synchronization pin of the start protection chip is connected with the first end of the third resistor, the first end of the third capacitor is connected with the electric energy trigger pin of the start protection chip, the first end of the fourth resistor and the first end of the fifth capacitor are connected with the electric energy compensation pin of the start protection chip in a shared mode, and the second end of the fourth resistor is connected with the first end of the fourth capacitor;
a second end of the third resistor, a second end of the third capacitor, a second end of the fourth capacitor, a second end of the fifth capacitor, a ground pin of the start protection chip, a first end of the fifth resistor, an anode of the third diode, a first end of the seventh capacitor, a first end of the eighth capacitor, and a first end of the ninth capacitor are connected to ground in common;
the state control pin of the start protection chip is connected with the first end of the sixth capacitor, and the second end of the sixth capacitor, the first end of the first inductor and the cathode of the third diode are connected with the switch pin of the start protection chip in common;
a second end of the fifth resistor and a first end of the sixth resistor are connected to a power supply feedback pin of the start protection chip in common, and a second end of the sixth resistor, a second end of the seventh capacitor, a second end of the eighth capacitor and a second end of the ninth capacitor are connected to a first end of the seventh resistor in common;
and the second end of the seventh resistor is used for outputting the second power supply signal after soft start protection.
6. The power supply slow start control circuit according to claim 3, wherein the differential comparison unit includes:
the differential comparison chip comprises an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a fourth diode, a fifth diode, a tenth capacitor, an eleventh capacitor and a second switching tube;
a first end of the eighth resistor, a first end of the tenth resistor and a first end of the thirteenth resistor are connected to the energy storage module in common;
the second end of the eighth resistor, the voltage input negative pin of the differential comparison chip and the first end of the ninth resistor are connected to the preset voltage in common;
a second end of the tenth resistor, a first end of the twelfth resistor and a first end of the eleventh resistor are commonly connected to the control end of the second switch tube, a second end of the twelfth resistor is connected to an anode of the fifth diode, and a cathode of the fifth diode, a first conduction end of the second switch tube and a first end of the eleventh capacitor are commonly connected to a voltage input positive pin of the differential comparison chip;
a second end of the eleventh capacitor, a second conduction end of the second switch tube, a second end of the eleventh resistor and a second end of the ninth resistor are connected to the ground in common;
the grounding pin of the differential comparison chip is grounded;
a second end of the thirteenth resistor, a cathode of the fourth diode, a first end of the tenth capacitor, and a first end of the fourteenth resistor are all connected to the power pin of the differential comparison chip, an anode of the fourth diode is grounded, and a second end of the tenth capacitor is grounded;
and a second end of the fourteenth resistor and a signal output pin of the differential comparison chip are connected to the switch module in common.
7. The power supply slow start control circuit according to claim 1, wherein the switch module comprises a third switch tube;
the control end of the third switch tube is connected with the voltage detection module, the first conduction end of the third switch tube is connected with the power supply module, and the second conduction end of the third switch tube is connected with the electric equipment.
8. The power supply slow start control circuit according to claim 7, wherein the third switching tube is a triode or an MOS tube.
9. The power supply slow start control circuit according to claim 1, wherein the power supply module is a lithium battery.
10. An unmanned aerial vehicle, comprising:
a slow start control circuit for a power supply according to any one of claims 1 to 9; and
and the electric equipment is connected with the power supply slow start control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921032334.1U CN211195875U (en) | 2019-07-02 | 2019-07-02 | Be applied to unmanned aerial vehicle's power and slowly start control circuit and unmanned aerial vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921032334.1U CN211195875U (en) | 2019-07-02 | 2019-07-02 | Be applied to unmanned aerial vehicle's power and slowly start control circuit and unmanned aerial vehicle |
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| CN211195875U true CN211195875U (en) | 2020-08-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024198671A1 (en) * | 2023-03-24 | 2024-10-03 | 人工智能与数字经济广东省实验室(深圳) | Power supply circuit and power supply device of unmanned aerial vehicle |
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2019
- 2019-07-02 CN CN201921032334.1U patent/CN211195875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024198671A1 (en) * | 2023-03-24 | 2024-10-03 | 人工智能与数字经济广东省实验室(深圳) | Power supply circuit and power supply device of unmanned aerial vehicle |
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Effective date of registration: 20220428 Address after: 518000 a1311, building 5, Shenzhen Bay science and technology ecological park, No. 26, Gaoxin South Ring Road, high tech Zone community, Yuehai street, Nanshan District, Shenzhen, Guangdong Patentee after: Shenzhen Lingyue Aviation Technology Co.,Ltd. Address before: 518000 1st floor, building C, Xinming hi tech Industrial Park, Xinhu street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN CHANGFENG INFORMATION TECHNOLOGY Co.,Ltd. |
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