CN204290441U - Wireless charger - Google Patents
Wireless charger Download PDFInfo
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- CN204290441U CN204290441U CN201420666371.9U CN201420666371U CN204290441U CN 204290441 U CN204290441 U CN 204290441U CN 201420666371 U CN201420666371 U CN 201420666371U CN 204290441 U CN204290441 U CN 204290441U
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Abstract
A kind of wireless charger, comprising: charging circuit, control chip, the first wireless communication module and wireless charging reflector; After the first wireless communication module receives the beginning charging instruction of mobile device transmission, this is started charging instruction and is sent to control chip, control chip controls charging circuit and charges, and by wireless charging reflector, rechargeable electrical energy is transferred to this mobile device; After the first wireless communication module receives the complete charge instruction of this mobile device transmission, this complete charge instruction is sent to control chip, control chip controls wireless charging reflector and stops transmission rechargeable electrical energy to mobile device.Utilize the utility model by wireless mode to mobile device quick charge.
Description
Technical field
The utility model relates to a kind of charger, especially a kind of wireless charger.
Background technology
Along with the development of current electronic technology, the digital product update speed such as MP3, MP4, mobile phone, palmtop PC are extremely quick, emerge in an endless stream.Particularly mobile phone is as using one of the most general consumer goods, and the mobile phone due to large-screen is visual and be recreationally greatly enhanced, therefore its screen constantly to large-size screen monitors even super large screen develop.The continuous increase of screen makes the power consumption of mobile phone be multiplied, but the electricity of battery but cannot increase at double, causes shorten the service time of mobile phone, brings work and inconvenience in life and trouble to user.
Existing charger for mobile phone adopts wired connection mode mostly, and the charging interval is longer, causes waste of time, brings a lot of inconveniences to user.
Utility model content
In view of above content, the utility model proposes a kind of wireless charger, wirelessly mobile device charged, have charging rate be exceedingly fast, time compole short and advantage that efficiency is high.
Described wireless charger comprises: the charging circuit be connected with holding wire by data wire, control chip, the first wireless communication module and wireless charging reflector; After the first wireless communication module receives the beginning charging instruction of mobile device transmission, this is started charging instruction and is sent to control chip, control chip controls charging circuit and charges, and by wireless charging reflector, rechargeable electrical energy is transferred to this mobile device; After the first wireless communication module receives the complete charge instruction of this mobile device transmission, this complete charge instruction is sent to control chip, control chip controls wireless charging reflector and stops transmission rechargeable electrical energy to mobile device.
Further, after the first wireless communication module receives the timing of mobile device setting, this timing is sent to control chip, control chip controls charging circuit according to this timing and charges, at the end of this timing, control chip controls wireless charging reflector and stops transmission rechargeable electrical energy to mobile device.
Further, this wireless charger also comprises near field communication module, and described near field communication module is for improving the data transmission bauds between mobile device and wireless charging device.
Further, described charging circuit comprises: the first rectification circuit, energy steering circuit, rectifying output circuit, ultracapacitor, charge/discharge control circuit and battery; The input termination AC-input voltage of described first rectification circuit, the first input end of the output termination energy steering circuit of described first rectification circuit, first output of described energy steering circuit connects the input of described rectifying output circuit, and the described output of rectifying output circuit is connected with the input of ultracapacitor; The output of described ultracapacitor is connected with the input of charge/discharge control circuit, the output of described charge/discharge control circuit is connected with battery, wherein, when the magnitude of voltage of the external equipment be connected with this wireless charger is less than the first pre-set threshold value, described charge/discharge control circuit controls ultracapacitor and discharges to this external equipment, when the magnitude of voltage of this external equipment is more than or equal to the first pre-set threshold value, described charge/discharge control circuit controls ultracapacitor and charges to battery or stop electric discharge.
Further, described charge/discharge control circuit comprises: the first switch, second switch, the 3rd switch, voltage detecting circuit and the second rectification circuit; Described first switch is connected with voltage detecting circuit and the second rectification circuit, and described voltage detecting circuit is connected with second switch and the 3rd switch, and described second rectification circuit is connected with second switch and the 3rd switch; Described voltage detecting circuit is for detecting the magnitude of voltage of external equipment, obtain the first detection magnitude of voltage, detect the magnitude of voltage of battery, obtain the second detection magnitude of voltage, and detect the size of magnitude of voltage and the instruction from mobile device reception according to this first detection magnitude of voltage, second, produce corresponding discharge signal control signal.
Further, described discharge control signal comprises the first control signal, the second control signal and the 3rd control signal; If charging instruction from mobile device receives, and this first detection magnitude of voltage is less than the first pre-set threshold value, then voltage detecting circuit produces the first control signal, control the first switch and the 3rd switch connection, second switch disconnects, and control ultracapacitor and by the first switch, the second rectification circuit, the 3rd switch and wireless charging reflector, this external equipment is discharged successively; If this first detection magnitude of voltage is more than or equal to the first pre-set threshold value or receives complete charge instruction from mobile device, and this second detection magnitude of voltage is less than the second pre-set threshold value, then voltage detecting circuit produces the second control signal, control that the first switch and second switch are connected, the 3rd switch disconnects, and control ultracapacitor and by the first switch, the second rectification circuit, second switch, battery is charged successively; If this first detection magnitude of voltage is more than or equal to the first pre-set threshold value and this second detection magnitude of voltage is more than or equal to the second pre-set threshold value, then voltage detecting circuit produces the 3rd control signal, control the first switch, second switch and the 3rd switch to disconnect, ultracapacitor stops electric discharge.
Further, this charging circuit also comprises a protective circuit, and described protective circuit comprises: information feed back loop, power limitation control loop and output control circuit; The described first input end in information feed back loop is connected with the input of ultracapacitor, second input in described information feed back loop is connected with the second output of the main transformer control loop of energy steering circuit, the output in described information feed back loop connects the input in power limitation control loop; First output in described power limitation control loop connects the input in the power adjustments loop of energy steering circuit, and second output in described power limitation control loop connects the input of described output control circuit; The output of described output control circuit is connected to the second input of the main transformer control loop of energy steering circuit.
Further, this charging circuit also comprises a DC/DC limiting circuit, and the input of described DC/DC limiting circuit connects DC input voitage, and the output of described DC/DC limiting circuit is connected with the input of described ultracapacitor.
Compared to prior art, the wireless charger of the utility model design wirelessly charges to mobile device, have charging rate be exceedingly fast, time compole short and advantage that efficiency is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of wireless charger in the utility model first embodiment;
Fig. 2 be in the utility model first embodiment wireless charger to the charging schematic diagram of mobile device;
Fig. 3 is the schematic diagram of the wireless charging auxiliary system of installing in mobile device;
Fig. 4 is the structural representation of wireless charger in the utility model second embodiment;
Fig. 5 be in the utility model second embodiment wireless charger to the charging schematic diagram of mobile device;
Fig. 6 is the structural representation of charging circuit in Fig. 1;
Fig. 7 is the structural representation of energy steering circuit in Fig. 5;
Fig. 8 is the structural representation of protective circuit in Fig. 5;
Fig. 9 is the structural representation of charge/discharge control circuit in Fig. 5.
Embodiment
As shown in Figure 1, in a first embodiment, wireless charger 2 of the present utility model comprises the charging circuit 20, control chip 22, first wireless communication module 23 and the wireless charging reflector 26 that are connected with holding wire by data wire.Described first wireless communication module 23 can be bluetooth module or Wi-Fi module, and described wireless charging reflector 26 can be wireless charging transmitting coil.
Consult shown in Fig. 2, described mobile device 4(is as mobile phone) comprise the second wireless communication module 42, display screen 43, wireless charging receiver 45 and the mobile device main body 46(that are connected with holding wire by data wire as phone housing etc.).Described second wireless communication module 42 can be bluetooth module or Wi-Fi module, and described wireless charging receiver 45 can be wireless charging receiving coil.Described mobile device 4 carries out communication by the second wireless communication module 42 with wireless charger 2 and is connected.
Consult shown in Fig. 3, in a first embodiment, in described mobile device 4, wireless charging auxiliary system 430 is installed, when this wireless charging auxiliary system 430 starts, the display screen 43 of described mobile device 4 shows the function button pre-set, as START button, " end " button, " regularly " button etc.
For example, when user clicks START button, mobile device 4 sends beginning charging instruction by the second wireless communication module 42 to wireless charger 2.When the first wireless communication module 23 of wireless charger 2 receives after this starts charging instruction, this is started charging instruction and be sent to control chip 22.Control chip 22 controls charging circuit 20 and charges, and rechargeable electrical energy is transferred to the wireless charging receiver 45 of mobile device 4 by wireless charging reflector 26.The description of Fig. 6 to Fig. 9 is consulted about the concrete structure of charging circuit 20 and charging method.
When user clicks " end " button, mobile device 4 sends complete charge instruction by the second wireless communication module 42 to wireless charger 2.After the first wireless communication module 23 of wireless charger 2 receives this complete charge instruction, this complete charge instruction is sent to control chip 22.Control chip 22 controls wireless charging reflector 26 and stops transmission rechargeable electrical energy to the wireless charging receiver 45 of mobile device 4.
Further, when user clicks " regularly " button, user can arrange the timing of charging, and mobile device 4 sends this timing by the second wireless communication module 42 to wireless charger 2.In charging process, after the first wireless communication module 23 of wireless charger 2 receives this timing, this timing is sent to control chip 22.Control chip 22 controls charging circuit 20 according to this timing and charges, and at the end of this timing, control chip 22 controls wireless charging reflector 26 and stops transmission rechargeable electrical energy to the wireless charging receiver 45 of mobile device 4.
Further, consult shown in Fig. 4, in a second embodiment, described wireless charger 2 also comprises a NFC(Near Filed Communication, near-field communication) module 25, described NFC module 25 is connected by other module of data wire or holding wire and wireless charger 2 or circuit.Consult shown in Fig. 5, in a second embodiment, described mobile device 4 also comprises a NFC coil 41, and described NFC coil 41 is connected by other module of data wire or holding wire and mobile device 4 or circuit.
In a second embodiment, described NFC module 25 and NFC coil 41 are for matching wireless charger 2 and mobile device 4 fast, and improve the data transmission bauds of mobile device 4 to wireless charging device 2, such as, accelerate wireless charger 2 transmits speed from rechargeable electrical energy to mobile device 4.
As shown in Figure 6; in the utility model; described charging circuit 20 comprises; but be not limited to, the first rectification circuit 21, energy steering circuit 22, rectifying output circuit 23, ultracapacitor 24, DC/DC limiting circuit 25, protective circuit 26, charge/discharge control circuit 27, battery 28 and voltage-stabilizing output circuit 29.Wherein, the input termination AC-input voltage (as civil power) of described first rectification circuit 21, the first input end of the output termination energy steering circuit 22 of described first rectification circuit 21, first of described energy steering circuit 22 exports the input of rectifying output circuit 23 described in termination, the output of described rectifying output circuit 23 is connected with the input (as connecting pin) of ultracapacitor 24, formed and exchange input charging structure, namely to the charging structure of ultracapacitor 24.Wherein, described ultracapacitor 24 can be Farad capacitors.
Further, the input of described DC/DC limiting circuit 25 connects DC input voitage (as USB port voltage), and the output of described DC/DC limiting circuit 25 is connected with the input of ultracapacitor 24, forms direct current input charging structure.
Further; the first input end of described protective circuit 26 is connected with the input of ultracapacitor 24; second input of described protective circuit 26 connects second output (as feedback output end) of energy steering circuit 22; the output of described protective circuit 26 is connected with second input (as control input end) of energy steering circuit 22, forms the feedback protection structure to energy steering circuit 22.
Further, the output of described ultracapacitor 24 is connected with the input of charge/discharge control circuit 27, and the output of described charge/discharge control circuit 27 is connected with battery 28, and the concrete structure figure about charge/discharge control circuit 27 consults the description of Fig. 9.In the present embodiment, described charge/discharge control circuit 27, for the voltage swing according to battery 28 and mobile device 4, controls ultracapacitor 24 pairs of mobile devices 4 and carries out discharge operation, or control ultracapacitor 24 pairs of batteries 28 charge.In better embodiment, input and the output of ultracapacitor 24 can be identical interface.
In the present embodiment, described energy steering circuit 22 can adopt conventional energy modulator and control circuit thereof, for example, consult shown in Fig. 7, described energy steering circuit 22 comprises, but be not limited to, high-frequency impulse oscillation circuit 221, power adjustments loop 222 and main transformer control loop 223.Wherein, the input of high-frequency impulse oscillation circuit 221 connects the output of the first rectification circuit 21, the first input end that input connects the output of high-frequency impulse oscillation circuit 221, the output in power adjustments loop 222 connects main transformer control loop 223 in power adjustments loop 222, first output of main transformer control loop 223 connects rectifying output circuit 23 as the first output of energy steering circuit 22, and be connected with ultracapacitor 24 further, form the interchange input charging structure to ultracapacitor 24.
Second output of described main transformer control loop 223 is connected with the second input of protective circuit 26; the output of described protective circuit 26 connects the second input of main transformer control loop 223, forms the feedback protection structure to exchanging input charging structure.The direct voltage that first rectification circuit 21 exports can be transformed into high-frequency impulse by high-frequency impulse oscillating circuit 221, pass through the control of power conditioning circuitry 222 and main transformer control loop 223 again, realize the control to output voltage and size of current, reach the quick charge to ultracapacitor 24.
Further, in order to make under interchange input charge mode, the normal work of protection energy steering circuit 22, is provided with protective circuit 26 in the present embodiment.Described protective circuit 26 can adopt conventional current foldback circuit, overvoltage crowbar etc., for example, consults shown in Fig. 8; in better embodiment; described protective circuit 26 includes, but not limited to information feed back loop 261, power limitation control loop 262 and output control circuit 263.Wherein, the first input end in information feed back loop 261 is connected with the input of ultracapacitor 24, second input in information feed back loop 261 is connected with the second output of the main transformer control loop 223 of energy steering circuit 22, the output in information feed back loop 261 connects the input in power limitation control loop 262.First output in power limitation control loop 262 connects the input in the power adjustments loop 222 of energy steering circuit 22, is formed and detects invariable power adjustment structure.
The second input (as control input end) that the input of described output control circuit 263 is connected with second output in power limitation control loop 262, the output of described output control circuit 263 is connected to the main transformer control loop 223 of energy steering circuit 22, forms the FEEDBACK CONTROL operator guards to energy steering circuit 22 and ultracapacitor 24.In other embodiments, described protective circuit 26 also can be omitted.
Further, the output of described ultracapacitor 24 connects charge/discharge control circuit 27, described charge/discharge control circuit 27 is for the voltage swing according to battery 28 and mobile device 4, control ultracapacitor 24 pairs of mobile devices 4 and carry out discharge operation, or control ultracapacitor 24 pairs of batteries 28 charge.
Further, the output of described battery 28 is also connected with a voltage-stabilizing output circuit 29, the input of this voltage-stabilizing output circuit 29 is connected with the connecting pin of battery 28, the output of voltage-stabilizing output circuit 29 can be connected to the charging inlet of high-voltage generator 40, forms ultracapacitor 24 pairs of load discharge structures.In other embodiments, described voltage-stabilizing output circuit 29 also can omit.
The direct voltage exported to make charging circuit 20 is corresponding with the charging voltage of wireless charger 2, and described voltage-stabilizing output circuit 29 exports constant direct voltage, if output voltage is 5V.
Consult shown in Fig. 9, described charge/discharge control circuit 27 includes, but not limited to the first switch 271, second switch 272, the 3rd switch 273, voltage detecting circuit 274 and the second rectification circuit 275.Described first switch 271 is connected with voltage detecting circuit 274 and the second rectification circuit 275, described voltage detecting circuit 274 is connected with second switch 272 and the 3rd switch 273 further, and described second rectification circuit 272 is connected with second switch 272 and the 3rd switch 273 further.Further, first switch 271 is connected to ultracapacitor 24, and described second switch 272 is connected to battery 28, and described 3rd switch 273 is connected to mobile device 4 by wireless charging reflector 26, it should be noted that, the schematic description of Fig. 9 just to charge/discharge control circuit 27.Those skilled in the art can understand, and this charge/discharge control circuit 27 can also comprise the element of other necessity, as rectifying output circuit etc., do not repeat them here.
Described voltage detecting circuit 274 is for detecting the magnitude of voltage (by the first wireless communication module 23 and the second wireless communication module 42) of mobile device 4, obtain the first detection magnitude of voltage, and detect the magnitude of voltage of battery 28, obtain the second detection magnitude of voltage, and detect the size of magnitude of voltage and the instruction from mobile device 4 reception according to this first detection magnitude of voltage, second, produce corresponding discharge control signal.In the present embodiment, described discharge control signal comprises the first control signal, the second control signal and the 3rd control signal.
Specifically, if charging instruction from mobile device 4 receives, and this first detection magnitude of voltage is less than the first pre-set threshold value (as 25 volts), then voltage detecting circuit 274 produces the first control signal, control the first switch 271 and the 3rd switch 273 is connected, second switch 272 disconnects, and control ultracapacitor 24 and by the first switch 271, second rectification circuit 275, the 3rd switch 273 and wireless charging reflector 26, this mobile device 4 is discharged successively.In the utility model, by wireless charging reflector 26, rechargeable electrical energy is transferred to the wireless charging receiver 45 of mobile device 4.
If this first detection magnitude of voltage is more than or equal to the first pre-set threshold value or receives complete charge instruction from mobile device 4, and this second detection magnitude of voltage is less than the second pre-set threshold value (as 3 volts), then voltage detecting circuit 274 produces the second control signal, control the first switch 271 and second switch 272 is connected, the 3rd switch 273 disconnects, and control ultracapacitor 24 and charged by the first switch 271, second rectification circuit 275, second switch 272 pairs of batteries 28 successively.In the present embodiment, described battery 28 can be lithium ion battery.
If this first detection magnitude of voltage is more than or equal to the first pre-set threshold value and this second detection magnitude of voltage is more than or equal to the second pre-set threshold value, then voltage detecting circuit 274 produces the 3rd control signal, control the first switch 271, second switch 272 and the 3rd switch 273 all to disconnect, ultracapacitor 24 stops electric discharge.
That is, if mobile device 4(such as mobile phone) there is power demands, then ultracapacitor 24 first discharges to mobile device 4, if mobile device 4 does not have power demands, then charges to battery 28 after ultracapacitor 24 output dc voltage.
It should be noted that, in other embodiments, described first switch 271, second switch 272 and the 3rd switch 273 also can replace with a variable connector element.
In the present embodiment, conveniently user charges to wireless charger 2, be provided with two kinds of modes that ultracapacitor 24 is charged, described AC-input voltage (as civil power) is charged by energy steering circuit 22 pairs of ultracapacitors 24, and described DC input voitage (as USB port voltage) is charged by DC/DC limiting circuit 25 pairs of ultracapacitors 24.Described AC-input voltage is greater than the charging current of described DC input voitage by DC/DC limiting circuit 25 pairs of ultracapacitors 24 by the charging current of energy steering circuit 22 pairs of ultracapacitors 24.
In the present embodiment, described AC-input voltage is 350A ~ 450A by the charging current of energy steering circuit 22 pairs of ultracapacitors 24, and prioritizing selection is 400A.Described DC input voitage is 0.8A ~ 1.5A by DC/DC limiting circuit to the charging current of ultracapacitor 24, and prioritizing selection is 1A.
In sum, the utility model adopts ultracapacitor 24 as accumulation of energy medium, form super capacitor energy structure, big current quick charge is carried out by energy steering circuit 22, commercial power charged electric current is up to 400A, charging interval is extremely quick, just can be full of electricity to jumbo ultracapacitor 24 in one minute, have charging rate be exceedingly fast, time compole short and beneficial effect that efficiency is high.
In addition, the utility model have employed civil power and USB two kinds of modes when charging to ultracapacitor 24, when connecing civil power, charging current can reach more than 400A, can be full of in 1 minute.And in order to protect computer main board, USB charging current then controls at about 1A, but it also can be full of fast in 60 ~ 80 minutes.Two kinds of charging modes can carry out simultaneously, are independent of each other, and facilitate user and carry out charging use, have and better use and experience performance.
Above content is the detailed description done the utility model in conjunction with concrete preferred implementation, can not assert that concrete enforcement is confined to these explanations.For person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.
Claims (10)
1. a wireless charger, is characterized in that, this wireless charger comprises:
The charging circuit be connected with holding wire by data wire, control chip, the first wireless communication module and wireless charging reflector;
After the first wireless communication module receives the beginning charging instruction of mobile device transmission, this is started charging instruction and is sent to control chip, control chip controls charging circuit and charges, and by wireless charging reflector, rechargeable electrical energy is transferred to this mobile device; And
After the first wireless communication module receives the complete charge instruction of this mobile device transmission, this complete charge instruction is sent to control chip, control chip controls wireless charging reflector and stops transmission rechargeable electrical energy to mobile device.
2. wireless charger according to claim 1, is characterized in that:
After the first wireless communication module receives the timing of mobile device setting, this timing is sent to control chip, control chip controls charging circuit according to this timing and charges, at the end of this timing, control chip controls wireless charging reflector and stops transmission rechargeable electrical energy to mobile device.
3. wireless charger according to claim 2, is characterized in that, this wireless charger also comprises near field communication module, and described near field communication module is for improving the data transmission bauds between mobile device and wireless charging device.
4. wireless charger according to claim 2, is characterized in that, described charging circuit comprises: the first rectification circuit, energy steering circuit, rectifying output circuit, ultracapacitor, charge/discharge control circuit and battery;
The input termination AC-input voltage of described first rectification circuit, the first input end of the output termination energy steering circuit of described first rectification circuit, first output of described energy steering circuit connects the input of described rectifying output circuit, and the described output of rectifying output circuit is connected with the input of ultracapacitor; And
The output of described ultracapacitor is connected with the input of charge/discharge control circuit, the output of described charge/discharge control circuit is connected with battery, wherein, when the magnitude of voltage of the external equipment be connected with this wireless charger is less than the first pre-set threshold value, described charge/discharge control circuit controls ultracapacitor and discharges to this external equipment, when the magnitude of voltage of this external equipment is more than or equal to the first pre-set threshold value, described charge/discharge control circuit controls ultracapacitor and charges to battery or stop electric discharge.
5. wireless charger according to claim 4, is characterized in that, described charge/discharge control circuit comprises: the first switch, second switch, the 3rd switch, voltage detecting circuit and the second rectification circuit;
Described first switch is connected with voltage detecting circuit and the second rectification circuit, and described voltage detecting circuit is connected with second switch and the 3rd switch, and described second rectification circuit is connected with second switch and the 3rd switch; And
Described voltage detecting circuit is for detecting the magnitude of voltage of external equipment, obtain the first detection magnitude of voltage, detect the magnitude of voltage of battery, obtain the second detection magnitude of voltage, and detect the size of magnitude of voltage and the instruction from mobile device reception according to this first detection magnitude of voltage, second, produce corresponding discharge signal control signal.
6. wireless charger according to claim 5, is characterized in that, described discharge control signal comprises the first control signal, the second control signal and the 3rd control signal;
If charging instruction from mobile device receives, and this first detection magnitude of voltage is less than the first pre-set threshold value, then voltage detecting circuit produces the first control signal, control the first switch and the 3rd switch connection, second switch disconnects, and control ultracapacitor and by the first switch, the second rectification circuit, the 3rd switch and wireless charging reflector, this external equipment is discharged successively;
If this first detection magnitude of voltage is more than or equal to the first pre-set threshold value or receives complete charge instruction from mobile device, and this second detection magnitude of voltage is less than the second pre-set threshold value, then voltage detecting circuit produces the second control signal, control that the first switch and second switch are connected, the 3rd switch disconnects, and control ultracapacitor and by the first switch, the second rectification circuit, second switch, battery is charged successively; And
If this first detection magnitude of voltage is more than or equal to the first pre-set threshold value and this second detection magnitude of voltage is more than or equal to the second pre-set threshold value, then voltage detecting circuit produces the 3rd control signal, control the first switch, second switch and the 3rd switch to disconnect, ultracapacitor stops electric discharge.
7., according to the wireless charger of claim 4 to 6 described in one of them, it is characterized in that, described energy steering circuit comprises: high-frequency impulse oscillation circuit, power adjustments loop and main transformer control loop;
The input of described high-frequency impulse oscillation circuit connects the output of the first rectification circuit, the input in described power adjustments loop connects the output of high-frequency impulse oscillation circuit, the output in described power adjustments loop connects the first input end of described main transformer control loop, and the first output of described main transformer control loop connects rectifying output circuit; And
Second output of described main transformer control loop is connected with the second input of protective circuit, and the second input of described main transformer control loop connects the output of described protective circuit.
8. wireless charger according to claim 7, is characterized in that, this charging circuit also comprises a protective circuit; And the first input end of described protective circuit is connected with the input of ultracapacitor, the second input of described protective circuit connects the second output of energy steering circuit, and the output of described protective circuit is connected with the second input of energy steering circuit.
9. wireless charger according to claim 8, is characterized in that, described protective circuit comprises: information feed back loop, power limitation control loop and output control circuit;
The described first input end in information feed back loop is connected with the input of ultracapacitor, second input in described information feed back loop is connected with the second output of the main transformer control loop of energy steering circuit, the output in described information feed back loop connects the input in power limitation control loop;
First output in described power limitation control loop connects the input in the power adjustments loop of energy steering circuit, and second output in described power limitation control loop connects the input of described output control circuit; And
The output of described output control circuit is connected to the second input of the main transformer control loop of energy steering circuit.
10. according to the wireless charger of claim 4 to 6 described in one of them, it is characterized in that, this charging circuit also comprises a DC/DC limiting circuit, the input of described DC/DC limiting circuit connects DC input voitage, and the output of described DC/DC limiting circuit is connected with the input of described ultracapacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666371.9U CN204290441U (en) | 2014-11-10 | 2014-11-10 | Wireless charger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420666371.9U CN204290441U (en) | 2014-11-10 | 2014-11-10 | Wireless charger |
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| Publication Number | Publication Date |
|---|---|
| CN204290441U true CN204290441U (en) | 2015-04-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420666371.9U Expired - Fee Related CN204290441U (en) | 2014-11-10 | 2014-11-10 | Wireless charger |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467130A (en) * | 2014-11-10 | 2015-03-25 | 深圳市兴吉胜电子有限公司 | Wireless charger |
| CN110168848A (en) * | 2017-04-07 | 2019-08-23 | Oppo广东移动通信有限公司 | Wireless charging method, device, system and charging equipment |
| CN113131627A (en) * | 2019-12-31 | 2021-07-16 | 深圳市万普拉斯科技有限公司 | Wireless charging method, device, system, computer equipment and readable storage medium |
-
2014
- 2014-11-10 CN CN201420666371.9U patent/CN204290441U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104467130A (en) * | 2014-11-10 | 2015-03-25 | 深圳市兴吉胜电子有限公司 | Wireless charger |
| CN110168848A (en) * | 2017-04-07 | 2019-08-23 | Oppo广东移动通信有限公司 | Wireless charging method, device, system and charging equipment |
| CN113131627A (en) * | 2019-12-31 | 2021-07-16 | 深圳市万普拉斯科技有限公司 | Wireless charging method, device, system, computer equipment and readable storage medium |
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