TWM503691U - Resisting charging resonance type bi-directional wireless charge/discharge device with bypass control - Google Patents

Description

Recharge-resistant resonant two-way wireless charging and discharging device with bypass control

The present invention relates to a two-way wireless charging and discharging device with a bypass control, and particularly relates to a cumulative damage caused by avoiding charging of the battery each time, and connecting an external power source to improve wireless charging and discharging efficiency and lifting A charging-resistant resonant two-way wireless charging and discharging device with bypass control for a portable electronic product of pressure efficiency.

With the increasing popularity of wireless charging, the future is bound to evolve into a wireless charging state everywhere, while wireless charging everywhere brings great convenience, but whether it is wired or wireless charging, each time at the beginning of charging Waves will inevitably cause cumulative damage to the battery, which in turn will reduce the battery life. In other words, as the number of times of charging increases, the battery life will be shorter and shorter, and the battery's charge and discharge efficiency will be higher. The worse it is.

In the case of wireless charging everywhere, there will be many wireless charging places in the scope of people's activities, or people will enter and exit the same wireless charging place multiple times. As a result, the portable electronic products carried are bound to be in one day. The battery is wirelessly charged multiple times indiscriminately, thereby ending the battery life in the portable electronic product.

Secondly, since the wireless charging and discharging efficiency is still low, that is, the discharge amount is still higher than the charging amount, and the rising and lowering efficiency is also low, which makes the practicality of wireless charging and discharging still unable to improve. Long time.

In addition, the conventional wireless charging device uses a battery to provide transmission power regardless of whether it is one-way or two-way charging, which is liable to cause a loss of the life of the depleted battery and the inefficiency of providing the transmitted power.

Therefore, how to design a device that avoids the cumulative damage caused by charging the battery every time, and even switches the power supply mode when connecting the external power source to improve the wireless charging and discharging efficiency and the efficiency of the lifting and lowering voltage. A major topic that the creators want to solve.

One of the purposes of the present invention is to provide a two-way wireless charging and discharging device with a bypass control. The special position of the ultracapacitor and the impedance of the ultracapacitor are lower than the battery. Therefore, when charging, the system will first Charging the supercapacitor, so that the supercapacitor can withstand the surge problem at each charging, relatively avoiding the cumulative damage caused by charging the battery each time; by the reverse flow prevention function of the bypass switch unit, To avoid leakage, it has a power saving effect.

The second object of the present invention is to provide a two-way wireless charging and discharging device with a bypass control, which is a buck-boost unit with synchronous rectification (preferably a metal oxide semiconductor field). Effect transistor synchronous rectification), and according to the efficiency of lifting and lowering.

The third purpose of this creation is to provide a bypass control The charge-resistant resonant two-way wireless charging and discharging device uses the metal oxide semiconductor field effect transistor as the backflow prevention or the use as the battery discharge switch unit, the first bypass switch unit, and the second bypass switch unit The important components of the switch make the power loss during conduction lower, so the discharge efficiency will be higher, thereby improving the wireless charging and discharging efficiency.

The fourth purpose of the present invention is to provide a resonance-resistant two-way wireless charging and discharging device with bypass control, wherein the rectifying unit can convert the DC signal into an AC signal, or convert the AC signal into a DC signal, so that the resonant element unit can be The induced magnetic field is generated, or the induced current is generated according to the induced magnetic field, thereby achieving the two-way wireless charging and discharging function, and further enabling the portable electronic product provided with the bypass-controlled resonance-resistant two-way wireless charging and discharging device to be wirelessly charged. Can also be wirelessly discharged.

The fifth objective of the present invention is to provide a two-way wireless charging and discharging device with bypass control, which has a two-way wireless transmitting and receiving mode, and when the wireless transmitting mode is activated and an external power source is connected, an external power supply transmitting mode is adopted, and Disengage the power from the battery; when the wireless transmission mode is activated and no external power is detected, the battery transmission mode is activated, and the power of the resonant element unit is automatically provided by the power of the battery; when the wireless receiving mode is activated, the wireless receiving mode is adopted. The electric power charges the portable electronic product to achieve two-way wireless charging and discharging, prolong the service life of the battery, and increase the efficiency of use of electric power.

In order to achieve the above object, the present invention provides a charge-resonant two-way wireless charging and discharging device with bypass control, which is applied to a portable electronic product having a circuit device electrically connected to a power receiving end and a The battery, the bypass-controlled resonance-resistant two-way wireless charging and discharging device comprises: a logic control unit, a rectifying unit, a buck-boost unit, a battery discharge switch unit, a first bypass switch unit, and a second A bypass switch unit, a control switch, and a first super capacitor. The logic control unit has a plurality of legs, including a power supply pin, a detection pin and a plurality of control pins. The rectification unit is configured to convert a DC signal or an AC signal, and has an input terminal, two output terminals, and a plurality of control pins. a control terminal, wherein the plurality of control terminals are respectively electrically connected to the plurality of control pins of the logic control unit; the resonant component unit generates an induced magnetic field according to the alternating current signal, or generates an induced current according to the induced magnetic field, and is electrically connected to the rectifying unit The output end; the buck-boost unit has a first voltage regulating end, a second voltage regulating end and two control ends, the second voltage regulating end is electrically connected to the input end of the rectifying unit, and the two control ends are respectively electrically The first and second control pins of the logic control unit are electrically connected to the second voltage regulating end and the input end of the logic control unit; the battery discharge switch unit has an inlet a terminal end, an outlet end and a control end, the inlet end and the outlet end being electrically connected to the discharge end of the battery and the first voltage regulating end of the buck-boost unit, respectively, the control end Connected to the third control pin of the logic control unit; one end of the control switch is electrically connected to the discharge end of the battery, and the other end is electrically connected to the control end of the battery discharge switch unit and the logic control unit a third control switch; the first bypass switch unit has an inlet end, an outlet end and a control end, and the outlet end and the inlet end are respectively electrically connected to the power receiving end of the protection circuit of the circuit device and the bucking and pressing unit The first voltage regulating end is electrically connected to the fifth control pin of the logic control unit; the second bypass switch unit has an inlet end, an outlet end and a control end, and the outlet end The second end of the logic control unit is electrically connected to the power receiving end of the circuit device and the second voltage regulating end of the buck-boost unit, and the control terminal is electrically connected to the fifth control pin of the logic control unit; An electrode is electrically connected to the connection between the power receiving end of the circuit device and the outlet end of the second bypass switch unit, and a first node is formed at the connection, and the other electrode is grounded.

In this way, the supercapacitor can resist the surge problem at each charging, and the cumulative damage caused by charging the battery each time can be avoided. Furthermore, the battery discharge switch unit and the first bypass switch are used. The reverse flow prevention function of the unit and the second bypass switch unit can avoid leakage, and has a power saving effect.

Furthermore, the present invention also provides a charge-resonant two-way wireless charging and discharging device with bypass control, wherein the buck-boost unit is a step-up and step unit with synchronous rectification (better is a metal oxide semiconductor field effect). Transistor type synchronous rectification), according to the efficiency of lifting and lowering pressure.

In order to further understand the features, features and technical contents of the present invention, please refer to the following detailed description of the present invention and the accompanying drawings, which are only for reference and description, and are not intended to limit the present invention.

1‧‧‧Logical Control Unit

11~20‧‧‧First~10 control feet

1a‧‧‧Power foot

1b‧‧‧Detecting feet

1c‧‧‧Emission and hold loop

2‧‧‧Rectifier unit

21‧‧‧ input

22‧‧‧ Output

23‧‧‧First transistor

24‧‧‧Second transistor

25‧‧‧ Third transistor

26‧‧‧ Fourth transistor

3‧‧‧Lifting and lowering unit

31, 32‧‧‧ first and second pressure regulating ends

33, 34‧‧‧ control end

35, 36‧‧‧First and second metal oxide semiconductor field effect transistors

37‧‧‧Inductance

4‧‧‧Battery Discharge Switch Unit

4a‧‧‧Second bypass switch unit

4b‧‧‧First bypass switch unit

41‧‧‧ entrance end

42‧‧‧export end

43‧‧‧Control terminal

431‧‧‧second node

44, 45‧‧‧First and second metal oxide semiconductor field effect transistors

46‧‧‧First resistance

47‧‧‧Optoelectronics

48‧‧‧second resistance

5‧‧‧Control switch

6‧‧‧First supercapacitor

61‧‧‧ first node

7‧‧‧Resonance component unit

71‧‧‧Inductance

72‧‧‧ Capacitance

8‧‧‧Current voltage detection unit

9‧‧‧Portable Electronics

91‧‧‧circuit devices

911‧‧‧ signal output

92‧‧‧Protection circuit

921‧‧‧Power end

93‧‧‧Battery

931‧‧‧Discharge end

94‧‧‧External power supply

FIG. 1 is a block diagram showing a first embodiment of a portable charging-resistant two-way wireless charging and discharging device with bypass control electrically connected to a portable electronic product.

FIG. 2 is a circuit diagram of a first embodiment of the present invention for electrically connecting a resonant-resistant two-way wireless charging and discharging device with bypass control to a portable electronic product.

Fig. 3 is a schematic view showing a two-way wireless charging and discharging device with a bypass-controlled resonance-resonant type.

Figure 3A is a circuit diagram of the first charge-resistant resonant two-way wireless charging and discharging device with bypass control.

FIG. 3B is a circuit diagram of the second charge-resistant resonant bidirectional wireless charging and discharging device with bypass control.

Fig. 4 is a block diagram showing an equivalent circuit of the second embodiment of the present invention.

Please refer to FIG. 1 and FIG. 2 together, which is a block diagram and a circuit diagram of a first embodiment of a portable electronic product 9 having a circuit device 91. The circuit device 91 is electrically connected to a power receiving end 921 and a battery 93. Preferably, the circuit unit 91 further has a protection circuit 92 electrically connected between the power receiving end 921 and the battery 93. . The charge-resonant two-way wireless charging and discharging device with bypass control comprises: a logic control unit 1, a rectifying unit 2, a buck-boost unit 3, a battery discharge switch unit 4, a first bypass switch unit 4b, a second bypass switch unit 4a, a control switch 5, a first supercapacitor 6, a resonant element unit 7, and a second supercapacitor (not shown), wherein the power receiving end 921 of the circuit device 91 is electrically connected to an external portion. Power supply 94.

The logic control unit 1 has first to ten control pins 11 to 20, a power supply pin 1a and a detection pin 1b, and a pin whose component symbol is not marked is a ground pin.

The rectifying unit 2 converts a DC signal or an AC signal, and has an input terminal 21, two output terminals 22, and a plurality of control terminals. The output terminal 22 The plurality of control terminals are electrically connected to the plurality of control pins 17, 18, 19, and 20 of the logic control unit 1, respectively, and the detailed connection relationship will be described later.

The bucking and lowering unit 3 has a first voltage regulating end 31, a second voltage regulating end 32, and two control ends 33, 34. The second voltage regulating end 32 is electrically connected to the input end 21 of the rectifying unit 2, The two control terminals 33 and 34 are respectively electrically connected to the first and second control pins 11 and 12 of the logic control unit 1. The power supply pin 1a of the logic control unit 1 is electrically connected to the second tone that is connected to each other. The pressure end 32 and the input end 21. Preferably, the buck-boost unit 3 is a step-up and step-down unit 3 having synchronous rectification, and is a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) type synchronous rectification.

The step-up and step-down unit 3 having synchronous rectification includes an inductor 37 and two first and second metal oxide semiconductor field effect transistors 35 and 36 connected in series in the same direction, and the first and second metal oxide semiconductor field effect transistors Each of the 35th and 36th series has a control pole (not labeled with a component symbol), and the two control poles are electrically connected to the two control terminals 33 and 34 of the buck-boost unit 3, respectively. One end of the crystals 35, 36 is electrically connected to the second voltage regulating end 32, and the other end is grounded. One end of the inductor 37 is electrically connected to the first voltage regulating end 31, and the other end is electrically connected. Connected between the first and second metal oxide semiconductor field effect transistors 35, 36.

The battery discharge switch unit 4 has an inlet end 41, an outlet end 42 and a control end 43. The inlet end 41 and the outlet end 42 are electrically connected to the discharge end 931 of the battery 93 and the buck-boost unit 3, respectively. First pressure regulating end 31. The control terminal 43 is electrically connected to the third control pin 13 of the logic control unit 1 (for transmission identification). Preferably, the fourth control leg 14 of the logic control unit 1 is further electrically connected to the third control pin 13 in a loop manner, that is, the transmission holding circuit 1c shown in the figure (which is kept in the transmitting mode). use).

The control switch 5 is electrically connected to the discharge end 931 of the battery 93, and the other end is electrically connected to the control end 43 of the battery discharge switch unit 4 and the third control leg 13 of the logic control unit 1; Wherein, the second end of the control switch 5 and the control end 43 of the battery discharge switch unit 4 form a second node 431. Preferably, the control switch 5 is an automatic reset switch.

The first bypass switch unit 4b has an inlet end 41, an outlet end 42 and a control end 43. The outlet end 42 and the inlet end 41 are electrically connected to the power receiving end 921 of the protection circuit 92 of the circuit device 91, respectively. And the first voltage regulating end 31 of the buck-boost unit 3, the control terminal 43 is electrically connected to the sixth control pin 16 of the logic control unit 1, and the sixth control leg 16 of the logic control unit 1 is The control signal can be output to control ON or OFF of the first bypass switch unit 4b.

The second bypass switch unit 4a also has an inlet end 41, an outlet end 42 and a control end 43. The outlet end 42 and the inlet end 41 are electrically connected to the power receiving end of the protection circuit 92 of the circuit device 91, respectively. 921 and the second voltage regulating end 32 of the buck-boost unit 3, the control terminal 43 is electrically connected to the fifth control pin 15 of the logic control unit 1, and the fifth control pin 15 of the logic control unit 1 The system can output a control signal to control the ON of the second bypass switch unit 4a Or OFF. Accordingly, in the receiving mode, the logic control unit 1 can relatively control the ON or OFF of the first bypass switch unit 4b and the second bypass switch unit 4a to charge the battery 93; in the transmit mode, the logic control unit 1 The ON or OFF of the first bypass switch unit 4b and the second bypass switch unit 4a can be relatively controlled to charge another charge-resonant two-way wireless charging and discharging device with bypass control by a battery or an external power source.

Secondly, the charge-resonant two-way wireless charging and discharging device with bypass control further includes a second supercapacitor (not shown), and the second supercapacitor is connected in parallel with the battery 93. The supercapacitor provided by the controlled charge-resonant two-way wireless charging and discharging device may be: only the first supercapacitor 6 is provided, only the second supercapacitor (not shown) is provided, or The first supercapacitor 6 and the second supercapacitor are disposed.

An electrode of the first supercapacitor 6 is electrically connected to a connection between the power receiving end 921 of the protection circuit 92 of the circuit device 91 and the outlet end 42 of the second bypass switch unit 4a, and is formed at the connection. A first node 61, the other electrode of the first supercapacitor 6 is grounded. Since the impedance of the first supercapacitor 6 and the second supercapacitor is lower than that of the battery 93, the supercapacitor is charged first when being charged, thereby achieving the supercapacitance to withstand the surge problem at each charging; The ultracapacitor is also easily charged, so it will immediately charge the battery 93.

The resonant element unit 7 is electrically connected to the two output ends 22 of the rectifying unit 2, and includes an inductor 71 and a capacitor 72 electrically connected to each other. The inductor 71 and the capacitor 72 can be connected in series or in parallel. The resonant element unit 7 generates an induced magnetic field according to the alternating current signal, or generates an induced current according to an induced magnetic field, and when the inductance and the capacitive reactance of the inductor 71 and the capacitor 72 cancel each other, That is, the maximum current can be generated when the inductor 71 and the capacitor 72 reach the resonance frequency. The generation of induced currents and induced magnetic fields will be described below.

Referring to the first and second figures, the battery discharge switch unit 4, the first bypass switch unit 4b, and the second bypass switch unit 4a each have a first resistor 46 and two first ends connected in series with each other. Two metal oxide semiconductor field effect transistors 44, 45, the two metal oxide semiconductor field effect transistors are connected at both ends of the battery discharge switch unit 4, the first bypass switch unit 4b, the second side The first and second metal-oxide-semiconductor field-effect transistors 44 and 45 each have a control electrode (not labeled with a component symbol), and the two control electrodes are electrically connected to each other. a battery discharge switch unit 4, a first bypass switch unit 4b, and a control terminal 43 of the second bypass switch unit 4a. One end of the first resistor 46 is electrically connected to the first and second metal oxide semiconductor field effect transistors. Between 44 and 45, the other end is also electrically connected to the battery discharge switch unit 4, the first bypass switch unit 4b, and the control terminal 43 of the second bypass switch unit 4a. In addition, the battery discharge switch unit 4, the first bypass switch unit 4b, and the second bypass switch unit 4a each have a transistor 47 and a second resistor 48. The first pole of the transistor 47 is electrically connected to the The gates of the first and second metal oxide semiconductor field effect transistors 44, 45 (not labeled with the elements), the second pole of the transistor 47 is grounded, and the second resistor 48 is electrically connected to the transistor The third pole of 47 is between the battery discharge switch unit 4, the first bypass switch unit 4b, and the control terminal 43 of the second bypass switch unit 4a.

The following describes the transmission mode of the first embodiment of the resonance-resistant two-way wireless charging and discharging device with bypass control of the present invention: since the resonance-resistant two-way wireless charging and discharging device with bypass control is preset to the receiving mode, Therefore, if it is desired to enter the transmission mode, the control switch 5 must be pressed to switch.

It is assumed that a portable electronic product 9 provided with a bypass-controlled resonance-resistant two-way wireless charging and discharging device is provided, and the power of the battery 93 is to be wirelessly transmitted to another electronic product having a wireless charging device. When the control switch 5 is first turned on, the battery 93 is electrically passed through the control switch 5, and then flows through the third control pin 13 (ie, the emission identification control pin) to allow the logic control unit 1 to recognize the current system switching. In the transmitting mode, the logic control unit 1 further generates a control signal including a transmission mode signal or a reception mode signal. In this embodiment, the control signal is a battery transmission mode signal. The battery 93 power originally blocked by the battery discharge switch unit 4, when the control switch 5 is turned on, turns on the battery discharge switch unit 4 to allow power to pass, and then passes through the first metal oxide semiconductor field effect of the step-up and step-down unit 3. The crystal 35 is connected to the power supply pin 1a of the logic control unit 1 to supply power to the logic control unit 1. The power of the battery 93 is prevented from being recharged by the blocking of the first bypass switch unit 4b and the second bypass switch unit 4a. When the logic control unit 1 has recognized that it is currently in the transmitting mode, the transmitting and holding circuit 1c can be utilized (contining to remain in the transmitting mode) to continuously provide the transmitting and holding signal of the fourth control pin 14 to the third. The control pin 13 achieves the effect of the emission hold so as to be able to remain in the emission state.

The present invention further includes a current-voltage detecting unit 8 electrically connected between the detecting leg 1b of the logic control unit 1 and the resonant element unit 7 for detecting an alternating signal on the resonant element unit 7. The logic control unit 1 detects the AC signal transmission control signal on the resonant element unit 7 to the battery discharge switch unit 4, the second bypass switch unit 4a, and the first bypass according to the current voltage detecting unit 8. The switch unit 4b, the buck-boost unit 3, and the rectifying unit 2, such that the battery discharge switch unit 4, the first bypass switch unit 4b, the second bypass switch unit 4a, the buck-boost unit 3, and the rectifying unit 2 can generate phases according to the control signals. Corresponding actuation, the so-called corresponding actuation means that the circuit generates a corresponding opening or closing according to the control signal. The current and voltage detecting unit 8 detects whether there is an electronic product to be charged on the opposite side of the resonant component unit 7. If not detected, the logic control unit 1 controls to stop transmitting, and the detection is performed by current and voltage detection. The measuring unit 8 detects whether the opposite side of the resonant element unit 7 does have a load. Whether or not the load is detected is determined by determining whether the resonant element unit 7 generates an induced current or an induced magnetic field.

If there is no load: stop transmitting; if there is load: the logic control unit will output PWM (wave width modulation) signal by its first and second control pins 11 and 12 to drive the first of the buck-boost unit 3 One or two metal oxide semiconductor field effect transistors 35, 36. By using the PWM signals, the first and second metal oxide semiconductor field effect transistors 35, 36 can be continuously interleaved at a high frequency, when the second metal oxide semiconductor field effect transistor 36 is open and the first metal oxide semiconductor field effect transistor 35 is off, since the second metal oxide semiconductor field effect transistor 36 and one end of the battery 93 are grounded to form a loop, thereby making the power of the battery 93 The inductor 37 can be discharged via the battery discharge switch unit 4 and the inductance 37 of the buck-boost unit 3 to flow through the second metal oxide semiconductor field effect transistor 36; when the first metal oxide semiconductor field effect transistor 35 is When the second metal oxide semiconductor field effect transistor 36 is turned off, the electric system from the battery 93 passes through the inductor 37, and the first metal oxide semiconductor field effect transistor 35 is removed to make the charged inductor 37 Can pass through the rectifying unit 2 External discharge.

In other words, the first and second metal oxide semiconductor field effect transistors 35, 36 are turned on and off, and turned on and off to charge the inductor 37 and discharge the inductor 37. When a current flows through the inductor 71 in the rectifying unit 2, the inductor 71 generates magnetic lines of force, and the opposite side of the electronic product is converted into a current after sensing the magnetic line. Further, when the anti-resonance two-way wireless charging and discharging device with bypass control is currently in the transmitting mode, the rectifying unit 2 converts the DC signal into an AC signal and transmits the AC signal to the resonant element unit 7. The resonant element unit 7 generates an induced magnetic field according to the alternating current signal, and at this time, the opposite side of the electronic product generates an induced current after sensing the induced magnetic field.

Furthermore, the rectifying unit 2 includes a circuit composed of at least two or at least four transistors. When the rectifying unit 2 includes a circuit composed of at least two transistors, the first transistor 23 and the second transistor 24 are The half bridge is electrically connected. When the rectifying unit 2 includes a circuit composed of at least four transistors, the first transistor 23, the second transistor 24, the third transistor 25, and the fourth transistor 26 are all The bridge is electrically connected. When receiving the transmission mode signal, the rectifying unit 2 converts the converted DC signal into an AC signal.

When transmitting, the first and second metal-oxide-semiconductor field-effect transistors 35 and 36 in the step-up and step-down unit 3 passing through the battery 93 to the rectifying unit 2 are boosted (for example, DC current of 3.6 to 4.2 V). The boost is about 5V AC; otherwise, the rectifier unit 2 to the battery 93 is stepped down. One of the first and second metal oxide semiconductor field effect transistors 35, 36 is controlled to boost voltage, and the other is to control synchronous rectification.

When the logic control unit 1 switches to the transmission mode, its fourth control The foot 14 will continuously output a transmit hold signal to keep the battery discharge switch unit 4 ON; when the logic control unit 1 switches to the receive mode, the fifth control pin 15 will continuously output a receive hold signal to maintain the second The bypass switch unit 4a is ON.

When the logic control unit 1 is switched to the receiving mode, the logic control unit 1 can also control the battery discharge switch unit 4 to be OFF by the transmission holding circuit 1c, and the control output by the fifth control pin 15 of the logic control unit 1 The second bypass switch unit 4a is controlled to be ON, so that the voltage stepped down by the step-up and step-down unit 3 is supplied to the portable via the second bypass switch unit 4a and the first supercapacitor 6 for absorbing the surge. The battery 93 of the electronic product 9 is, of course, protected by the protection circuit 92 to limit the charging range of the battery 93 to a predetermined range (for example, 4 to 6 V DC), and when the battery 93 is fully charged, the protection circuit 92 is to control to stop charging, and if the opposite side of the electronic product does not detect a load, it will automatically stop discharging (even when the battery is discharged, if the battery's power is lower than a set value, Will stop discharging).

In addition, the charge-resonant two-way wireless charging and discharging device with bypass control can be further connected to the external power source 94 to charge another charge-resonant two-way wireless charging and discharging device with bypass control by the external power source 94. In other words, when the anti-resonance two-way wireless charging and discharging device is connected to the external power source 94, the external power source 94 is used to supply the transmission mode, and the power from the battery 93 is removed to save the power consumption of the battery, thereby further extending the service life of the battery 93. Conversely, if the external power source 94 is not detected, the battery transmission mode as described above can be activated to switch the control switch 5 to automatically allow the power of the battery 93 to provide a charge-resistant resonance with bypass control. Two-way wireless charging The discharge power of the discharge device.

The current-voltage detecting unit 8 and the power receiving end 921 of the circuit device 91 are electrically connected to the external power source 94, and the current-voltage detecting unit 8 is configured to detect the voltage value of the external power source 94 and the voltage preset value inside the logic control unit 1. . In the transmitting mode, if the voltage value of the external power source 94 is lower than the voltage preset value inside the logic control unit 1, it indicates that the voltage of the external power source 94 is insufficient as the power source for charging. Therefore, the logic control unit 1 transmits the control signal to the first. The switch unit 4b is bypassed to turn on the first bypass switch unit 4b. Since the inlet end 41 of the first bypass switch unit 4b is electrically connected to the first voltage regulating end 31 of the buck-boost unit 3, the voltage of the external power source 94 must still be lifted via the buck-boost unit 3. Furthermore, if the voltage value of the external power source 94 is higher than the voltage preset value inside the logic control unit 1, it indicates that the voltage of the external power source 94 is sufficient. Therefore, the logic control unit 1 transmits the control signal to the second bypass switch unit 4a to The second bypass switch unit 4a is turned on so that the voltage of the external power source 94 can be directly transmitted to the rectifying unit 2 for rectification, whereby the process of power transmission can avoid the loss of power via the buck-boost unit 3.

After the current voltage detecting unit 8 detects that the external power source 94 is connected, the wireless charging device with the bypass control switches to the external power supply transmitting mode, and the fourth control pin 14 of the logic control unit 1 sends a control signal. Turning off the battery discharge switch unit 4 to prevent the battery 93 from being discharged, and turning on the second bypass switch unit 4a according to the result of comparing the voltage value of the external power source 94 and the internal voltage preset value of the logic control unit 1 by the current voltage detecting unit 8 The first bypass switch unit 4b is turned on, and the power is transmitted to the rectifying unit 2 to convert the direct current into alternating current to provide the externally provided transmitting power after the resonant element unit 7 senses the alternating current, and the principle of generating the transmitted electric power is transmitted by the battery 93 as described above. Acting, This will not be repeated here.

The following describes the transmission mode and the reception mode of the first embodiment of the resonance-resistant two-way wireless charging and discharging device with bypass control of the present invention: refer to FIG. 3, which is a creation-resistant two-pass resonance control with bypass control. A schematic diagram of a two-way wireless charging and discharging device, which are first and second charge-resonant two-way wireless charging and discharging devices with bypass control, respectively. In order to facilitate the description of the transmission mode and the reception mode of the present invention, in FIG. 3A, a circuit diagram of the first charge-resonant two-way wireless charging and discharging device with bypass control is shown, and in FIG. 3B, a second bypass is shown. The circuit diagram of the controlled charge-resonant two-way wireless charging and discharging device, that is, the second charge-resonant two-way wireless with bypass control when the first charge-resonant two-way wireless charging and discharging device with bypass control is in the transmitting mode The charging and discharging device is in the receiving mode; conversely, when the first charging and charging-resistant two-way wireless charging and discharging device with bypass control is in the receiving mode, the second charging-resistant resonant two-way wireless charging and discharging device with bypass control is Launch mode. When the resonant element unit 7 of the two-way wireless charging and discharging device of the second portable electronic product 9 generates an induced magnetic field according to the alternating current signal on the rectifying unit 2 (emission mode), the first one with the bypass control is provided. The resonant-type two-way wireless charging and discharging device can generate an induced current (reception mode) on the resonant element unit 7, after which the induced current is supplied to the logic control unit 1 via the rectifying unit 2 via the power supply pin 1a, and then received The incoming electricity will be depressurized by the buck-boost unit 3.

When the rectifying unit 2 receives the receiving mode signal, the alternating current signal on the converting resonant element unit 7 is converted into a direct current signal. The first transistor 23, the second transistor 24, the third transistor 25, and the fourth transistor 26 of the rectifying unit 2 Metal oxide semiconductor field effect transistors or gallium nitride field effect transistors (GAN FETs) are included in this creation. The frequency of the alternating signal of the present invention is between 10 kHz and 10 MHz. In the lower frequency (kHz), the transistor of the rectifying unit 2 is suitable for using a metal oxide semiconductor field effect transistor; at a higher frequency (MHz) Among them, the transistor of the rectifying unit 2 is suitable to use a gallium nitride field effect transistor.

As described above, when the two-way wireless charging and discharging device with bypass control initiates the receiving mode, the logic control unit 1 issues a control signal by the fifth control pin 15 or the sixth control pin 16 according to the received power level to open. The second bypass switch unit 4a or the first bypass switch unit 4b passes the received power through the rectifying unit 2 to convert the alternating current into direct current, and the direct current voltage is stepped down by the buck-boost unit 3 or the received power is directly transmitted to the The power receiving end 921 of the circuit device 91 charges the battery 93 so that the portable electronic product 9 can achieve the purpose of wireless charging.

Referring to FIG. 4, the resonance-resistant two-way wireless charging and discharging device with bypass control according to the second embodiment of the present invention is the same as the first embodiment, except that the second embodiment has no first implementation. In the example, the control switch 5 is replaced with the control signal outputted by the portable electronic product 9 in place of the control switch 5 of the first embodiment.

As shown in the figure, the circuit device 91 of the portable electronic product 9 has a signal output terminal 911 for manual control (for example, pressing a physical button of the portable electronic product 9 or a touch of the portable electronic product 9). The screen outputs a control signal via the signal output terminal 911 of the circuit device 91.

This creation has a bypass-controlled resonance-resistant two-way wireless charging In the second embodiment of the discharge device, the second node 431 of the battery discharge switch unit 4 is electrically connected to the signal output terminal 911 to use the control signal outputted by the signal output terminal 911 to cause the logic control unit 1 Switching to the transmission mode (via the third control pin 13).

In summary, the bi-directional wireless charging and discharging device with bypass control of the present invention is characterized in that the special setting position of the ultra-capacitor and the impedance of the ultra-capacitor are lower than the battery, and therefore, when being charged, The supercapacitor will be charged first, so that the supercapacitor can resist the surge problem at each charging, which can avoid the cumulative damage caused by charging the battery each time; by controlling the battery discharge switch unit 4, the first The bypass switch unit 4b and the second bypass switch unit 4a are turned on or off to avoid leakage, which is relatively energy-saving; the buck-boost unit 2 is a buck-boost unit with synchronous rectification, preferably Metal oxide semiconductor field effect transistor synchronous rectification (MOSFET synchronous rectification), thereby increasing the efficiency of buck-boost; by battery discharge switch unit 4, first bypass switch unit 4b and second bypass switch unit 4a The first and second metal oxide semiconductor field effect transistors 44 and 45 are used as an important component for backflow prevention or as a switch, so that the power lost during conduction is low, so the discharge is performed. The rate is higher, thereby improving the wireless charging and discharging efficiency; the rectifying unit 2 with the bypass-controlled resonance-resistant two-way wireless charging and discharging device can convert the DC signal into an AC signal or convert the AC signal into a DC signal. The resonant element unit 7 can generate an induced magnetic field or generate an induced current according to the induced magnetic field, thereby achieving the effect of two-way wireless charging and discharging, and further carrying the built-in bypass-resistant resonant-type two-way wireless charging and discharging device with bypass control. The electronic product 9 is wirelessly charged and can also be wirelessly discharged.

In addition, by means of the two-way wireless charging and discharging device with bypass control, the external power source 94 can be used to supply the transmission mode when the external power source 94 is connected, and the power from the battery 93 can be removed to save the power consumption of the battery 93, further extending the extension. The purpose of battery 93 life. Further, when no external power source 94 is detected, the battery 93 emission mode is activated, and the power of the resonance element unit 7 is automatically supplied with the power of the battery 93. When detecting the connection of the external power source 94, the two-way wireless charging and discharging device with bypass control can select to transmit the external power source 94 by the bypass circuit according to the comparison of the voltage of the external power source 94 and the preset voltage value of the logic control unit 1. electric power. Accordingly, the two-way wireless charging and discharging device with bypass control can achieve two-way wireless charging and discharging, prolong the service life of the battery, and increase the efficiency of power use.

The above is only a preferred and feasible embodiment of the present invention, and thus does not limit the scope of the patent of the creation, and the equivalent structural changes that are made by using the present specification and the contents of the schema are all included in the creation. Within the scope of the rights, it is given to Chen Ming.

1‧‧‧Logical Control Unit

11~20‧‧‧First~10 control feet

1a‧‧‧Power foot

1b‧‧‧Detecting feet

1c‧‧‧Emission and hold loop

2‧‧‧Rectifier unit

21‧‧‧ input

22‧‧‧ Output

3‧‧‧Lifting and lowering unit

31, 32‧‧‧ first and second pressure regulating ends

33, 34‧‧‧ control end

4‧‧‧Battery Discharge Switch Unit

4a‧‧‧Second bypass switch unit

4b‧‧‧First bypass switch unit

41‧‧‧ entrance end

42‧‧‧export end

43‧‧‧Control terminal

431‧‧‧second node

5‧‧‧Control switch

6‧‧‧First supercapacitor

61‧‧‧ first node

7‧‧‧Resonance component unit

8‧‧‧Current voltage detection unit

9‧‧‧Portable Electronics

91‧‧‧circuit devices

92‧‧‧Protection circuit

921‧‧‧Power end

93‧‧‧Battery

931‧‧‧Discharge end

94‧‧‧External power supply

Claims (16)

The invention relates to a portable charging-resistant two-way wireless charging and discharging device with bypass control, which is applied to a portable electronic product having a circuit device, the circuit device is electrically connected to a power receiving end and a battery, and the bypass control has a charging resistance The resonant two-way wireless charging and discharging device comprises: a logic control unit having a power supply pin, a detection pin and a plurality of control pins; a rectification unit having an input end, two output ends and a plurality of control ends, wherein the complex number Each of the control terminals is electrically connected to a plurality of control pins of the logic control unit; a resonant element unit is electrically connected to the two output ends of the rectifying unit; and a buck-boost unit has a first voltage regulating end and a a second voltage regulating end and two control terminals, the second voltage regulating end is electrically connected to the input end of the rectifying unit, and the two control ends are electrically connected to the first and second control pins of the logic control unit respectively, the logic The power supply pin of the control unit is electrically connected to the second voltage regulating end and the input end which are connected to each other; a battery discharge switch unit has an inlet end, an outlet end and a control end, The inlet end and the outlet end are respectively electrically connected to the discharge end of the battery and the first voltage regulating end of the buck-boost unit, the control end is electrically connected to the third control pin of the logic control unit; a control switch One end is electrically connected to the discharge end of the battery, and the other end is electrically connected to the control end of the battery discharge switch unit and the third control pin of the logic control unit; a first bypass switch unit has an inlet end, An outlet end and a control end, the outlet end and the inlet end are respectively electrically connected to the power receiving end of the circuit device and the first voltage regulating end of the buck-boost unit, and the control end is electrically connected a sixth control pin connected to the logic control unit; a second bypass switch unit having an inlet end, an outlet end and a control end, wherein the outlet end and the inlet end are electrically connected to the power receiving of the circuit device And a second voltage regulating end of the buck-boost unit, the control end is electrically connected to the fifth control pin of the logic control unit; and a first ultracapacitor having an electrode electrically connected to the power receiving end of the circuit device a first node is formed at the connection between the outlet end of the second bypass switch unit and the outlet end of the first bypass switch unit, and the other electrode is grounded; wherein the power receiving end of the circuit device is electrically connected Connect an external power supply. The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 1, further comprising a second supercapacitor connected in parallel with the battery. The circuit device has a protection circuit electrically connected between the battery and the power receiving end, as described in claim 1, wherein the circuit device has a protection circuit electrically connected to the battery. The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 1, wherein the buck-boost unit is a step-up and step unit with synchronous rectification, and is a metal oxide semiconductor field effect. Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) synchronous rectification. The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 4, wherein the buck-boost unit having synchronous rectification comprises an inductor and two metal oxide semiconductor fields in parallel with each other The effect transistor, the two metal oxide semiconductor field effect electro-crystal system each has a control pole, and the two control electrodes are electrically connected to the two control of the buck-boost unit The two metal oxide semiconductor field effect transistors are electrically connected to the second voltage regulating end at one end of the series connection, and the other end is grounded; one end of the inductor is electrically connected to the first voltage regulating end, and the other end is Then electrically connected between the two metal oxide semiconductor field effect transistors. The method of claim 1, wherein the battery discharge switch unit, the first bypass switch unit, and the second bypass switch unit have a a first resistor and two metal oxide semiconductor field effect transistors connected in series with each other, the two metal oxide semiconductor field effect transistors being connected to the inlet end and the outlet end of the backflow preventer at both ends after the series connection, The two metal oxide semiconductor field effect crystal system each have a control electrode, and the two control electrodes are electrically connected to the control end of the backflow preventer, and one end of the first resistor is electrically connected to the two metal oxide semiconductor field effect Between the transistors, the other end is also electrically connected to the control end of the backflow preventer. The method as claimed in claim 6, wherein the battery discharge switch unit, the first bypass switch unit and the second bypass switch unit further have a a transistor and a second resistor, the first pole of the transistor is electrically connected to the gate of the two metal oxide semiconductor field effect transistor, the second pole of the transistor is grounded, and the second resistor is electrically connected to The third pole of the transistor is between the control terminal of the backflow preventer. The method as claimed in claim 1, wherein the fourth control leg of the logic control unit is further electrically connected to the third control leg in a loop manner. The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 1, wherein the control relationship is an automatic reset. turn off. The anti-resonance two-way wireless charging and discharging device with bypass control as described in claim 1 further includes a current-voltage detecting unit electrically connected to the detecting leg of the logic control unit and the resonance The component unit and the power receiving end of the circuit device. The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 1, wherein the rectifying unit comprises at least two or at least four transistors. The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 11, wherein the at least two electro-crystalline system of the rectifying unit is electrically connected by a half bridge, and the at least four of the rectifying units The electro-crystalline system is electrically connected by a full bridge. The method of claim 12, wherein the transistor comprises a metal oxide semiconductor field effect transistor or a gallium nitride field effect transistor (GAN FET). . The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 1, wherein the resonant element unit comprises an inductor and a capacitor electrically connected to each other. The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 14, wherein the inductance of the resonant element unit and the capacitance are connected in series or in parallel. The anti-resonance two-way wireless charging and discharging device with bypass control according to claim 1, wherein the frequency of the alternating current signal is between 10 kHz and 10 MHz.