TWI442665B - Inductive power supply device to control the synchronous rectifier switch for data transmission - Google Patents

Description

Device for controlling synchronous rectification switch for data transmission in inductive power supply

The invention provides a device for controlling the synchronous rectification switch for data transmission in an inductive power supply, in particular, the power supply coil of the power receiving module is used to control the operation of the rectification and signal feedback circuit to interrupt the power receiving function in a short time. The signal is fed back to the power supply coil by the power receiving coil to complete the transmission of data for target identification and power setting.

According to the electromagnetic induction power system, the most important technical problem is that it must be able to identify the object placed on the transmitting coil of the power supply end. When the inductive power supply terminal transmits the power energy, it operates in the same way as the cooking induction cooker. If this energy is directly hit on the metal, it will cause danger to heat. In order to solve this problem, various manufacturers have developed technologies for identifying targets on the power supply side, and after several years of development, it is confirmed by the power supply process. Receiving the coil feedback signal on the power receiving end to the transmitting end transmitting coil, analysing the signal for identification is the best solution, and the function of data transmission on the induction coil is the most important core technology in the system; It is very difficult to transmit data stably on the induction coil of electricity. The main signal carrier is used for high-power transmission, but this transmission mode is subject to various interference conditions in the use of power, and this is a variable frequency type. Control system, so the operating frequency of the main carrier will not be fixed; and in order to solve the problem of data transmission difficulties, Some manufacturers have introduced a wireless communication channel in addition to the original induction coil supply, such as infrared, Bluetooth, RFID tags, WiFi, etc., but because of the additional addition of these communication modules, it also leads to the manufacturing cost of the system. Increase, forming a burden of economic costs.

Furthermore, the use of coils of inductive power for data transmission still has some technical problems, namely, sending data and receiving data. The principle is like the data transmission method of RFID, and the main carrier is transmitted from the power supply coil to the power receiving end coil. In the above, the feedback on the control coil on the power receiving circuit is used for feedback. Therefore, the current inductive power design is one-way transmission, that is, the power energy (LC oscillation main carrier) is sent from the power supply end to the power receiving end, and then The power receiving end feeds back the data code to the power supply end, and the power received by the power receiving end is only strong and weak, and does not contain the communication component, and the mechanism for transmitting the data code is only enough after the power receiving end is close to the power supply end. The power energy can be fed back. In the condition that the power supply end does not provide energy to the power receiving end, the data code transmission cannot be performed. Although it is only an incomplete communication mechanism, it is very practical in the induction power system and has satisfied the system. The required function; after the power supply terminal recognizes that the power receiving end is the correct target, the transmitting energy is turned on for power transmission, and the power receiving end transmits the power back. It is adjusted with the supply terminal.

At present, the power receiving and data feedback architecture of the receiving end adopts a resistive or capacitive design structure, wherein the resistive modulation feedback signal is derived from passive RFID technology, and the receiving coil impedance is used to switch the feedback signal to the transmitting coil for reading. In the latter stage, in order to reduce the power loss of the feedback time under higher power transmission, a capacitive modulation feedback signal is developed, but these two methods increase the power output on the power supply terminal during signal modulation, in the number of modulations. Or when the time increases, more power will be lost. The inductive power supply designed in this way is contrary to the basic principle of energy saving appeal of modern products. The above method will cause current surge on the circuit on the power receiving end during the modulation signal. , causing problems such as damage to power conversion parts and unstable power supply.

Therefore, how to improve the current power supply terminal and the power receiving end of the inductive power supply when transmitting power, while using the induction coil to transmit data causes instability, and transmitting data through other communication methods also causes the power receiving end or the power supply end The problem and lack of cost burden is the direction that the relevant manufacturers engaged in this industry are eager to study and improve.

Therefore, in view of the above-mentioned problems and deficiencies, the inventors have collected relevant information, and through multi-party evaluation and consideration, and through years of experience in the industry, through continuous trial and modification, the development of such power supply modules, When the power supply module is powered by the power module, it can stably transmit the data signal, and is used in the inductive power supply for the purpose of target identification and power setting, and the invention patent of the device for controlling the synchronous rectification switch for data transmission.

The main purpose of the present invention is to configure the power supply coil and the power receiving module to be disposed between the power receiving coils by the power supply module, and control the power receiving module to operate the rectifier circuit switch electrically connected to the power receiving coil when the power supply is transmitted, thereby receiving power. When the coil interrupts the power receiving function in a short time, the power supply coil of the power supply module may lose the load effect, so that the amplitude of the power supply carrier signal on the power supply coil changes, thereby transmitting the data signal to the power supply module by the power receiving module, and In the inductive power supply, the power receiving module to the power supply module transmits data to complete the target identification and power setting in the power supply operation.

The secondary object of the present invention is that the power receiving module is a powered microprocessor including a built-in program, and the power receiving microprocessor is electrically connected to the voltage detecting circuit, the rectifying and signal feedback circuit, the circuit breaker protection circuit, and the voltage stabilizing circuit. a DC buck and a power receiving coil, and the rectifying and signal feedback circuit includes a 壹 resistor, a 壹 MOSFET component, a 壹 diode, and a 贰 resistor, respectively, electrically connected to the positive and negative electrodes of the power receiving coil, respectively.贰 MOSFET element, the second diode, and then the 壹 resistor and the 壹 MOSFET element are electrically connected to the NAND resistor electrically connected to the power receiving microprocessor, and the 参 MOSFET element, and the 贰 resistor, the third 利用The MOSFET device is electrically connected to the second resistor and the second MOSFET device electrically connected to the power receiving microprocessor.

Another object of the present invention is to provide a power supply module with a power receiving module and a power receiving coil for sensing power transmission. Load, and the current drawn by this load comes from the power supply coil, and the current magnitude affects the amplitude variation on the power supply coil. The design is designed to set the control switch in the rectification and signal feedback circuit of the power receiving module, and use the cut-off rectification and signal of the extreme time. The operation of the feedback circuit causes the power supply module to lose its load for a short time. When the power is transmitted during the power supply, the amplitude of the power supply coil will be idling due to the loss of the load effect, and the amplitude of the signal will be reduced. When the rectification and signal feedback circuit is turned on again. When the power transmission is interrupted in the previous period, the power of the back-end capacitor is decreased. After the rectification and signal feedback circuit is turned on, the capacitor draws more current due to the charging effect, so that the amplitude on the power supply coil is increased, and the power can be received by the effect. Module feedback signal to power supply module for data transmission function, feedback During number and no extra power is lost, and by the power module only in a short time without power, but no parts need to withstand the impact of current, to avoid damage to the components.

In order to achieve the above objects and effects, the technical means and constructions of the present invention will be described in detail with reference to the preferred embodiments of the present invention. The features, functions, and implementation methods are as follows.

Please refer to the first and second figures, which are a simplified circuit diagram of the power supply module of the present invention, and a simple circuit diagram of the power receiving module. As can be clearly seen from the figure, the inductive power supply of the present invention includes a power supply mode. Group 1, power receiving module 2, wherein: the power supply module 1 has a power supply microprocessor 11, and an operating program, a control program, a signal analysis software with anti-noise function, and the like are built in the power supply microprocessor 11 system. The software program 11 is electrically connected to the power supply driving unit 12, the signal analysis circuit 13, the coil voltage detecting circuit 14, the display unit 15, and the power supply unit 16, and the power supply driving unit 12 is provided with a MOSFET driver 121. And MOSFE The T driver 121 is connected to the power supply microprocessor 11, the high side MOSFET element 122, and the low side MOSFET element 123, respectively, to be connected to the resonant circuit 17 through the high side MOSFET element 122 and the low side MOSFET element 123, and then to the high side MOSFET element 122. Connected to the power supply unit 16; the signal analysis circuit 13 uses a plurality of series-parallel resistors 131 and a capacitor 132 to rectify the diode 133 in series, and is electrically connected to the resonant circuit 17 through the rectifying diode 133; The power supply unit 161 is connected to the power supply unit 161, and the power supply unit 16 is electrically connected to the power supply driving unit 12; and the power supply unit 16 is electrically connected to the power supply driving unit 12; There is a power supply coil 171 that can transmit power and receive data signals.

The power receiving module 2 is provided with a power receiving microprocessor 21, and the power receiving microprocessor 21 is provided with a related software program such as an operation program and a control program, and is electrically connected to the voltage detecting circuit 22 and rectified in the power receiving microprocessor 21, respectively. And the signal feedback circuit 23, the circuit breaker protection circuit 24, the voltage regulator circuit 25, and the second DC voltage step 26; and the voltage detection circuit 22 has a series-type complex resistor 221 and is electrically connected to the power receiving microprocessor 21, And using the series resistor 221 to separately detect the end point 222, the rectification and signal feedback circuit 23, the circuit breaker protection circuit 24, and the second DC bucker 26; and the rectification and signal feedback circuit 23 includes a third resistor 231,壹MOSFET element 232, second diode 2311 and second resistor 233, The second MOSFET element 234 and the second diode 2331, and the second diode 2311 and the second diode 2331 are connected in parallel to the voltage detecting circuit 22, and further connected by the second resistor 231 and the second MOSFET component 232. The first reference resistor 235 and the third MOSFET component 236 are connected, and the first MOSFET component 236 is electrically connected to the data signal pin 212 of the power receiving microprocessor 21, and is electrically connected by the second resistor 233 and the second MOSFET component 234. The second resistor 237, the second MOSFET component 238, the second MOSFET component 238 are electrically connected to the data signal pin 211 of the power receiving microprocessor 21, and the second diode 2311 and the second diode. The 2331 shunt capacitor 239 is electrically connected to the resonant capacitor 27, the power receiving coil 271, and the voltage detecting circuit 22 by using the second resistor 231, the second resistor 233, the second diode 2311, and the second diode 2331, respectively. The circuit breaker circuit 24 is a series resistor 241, a P-type MOSFET device 242, and an N-type MOSFET device 243. The N-type MOSFET device 243 is electrically connected to the power receiving microprocessor 21, and the P-type MOSFET device 242 is electrically connected. The buffer capacitor 251 of the voltage stabilizing circuit 25, the first DC voltage step-down 252, the second DC buck 252 is electrically connected to the power receiving output 253; and the voltage detecting circuit 22, the circuit breaker circuit 24, the voltage stabilizing circuit 25 and the second DC bucker 26 are electrically connected to the power receiving The microprocessor 21 uses a voltage detecting circuit 22, a circuit breaker protection circuit 24, and a second DC bucker 26, respectively It is electrically connected to the rectifying and signal feedback circuit 23, and is electrically connected to the resonant capacitor 27 by the second diode 2311 and the second diode 2331 of the rectifying and signal feedback circuit 23, that is, electrically connected by the resonant capacitor 27. Power receiving coil 271.

The inductive power supply of the present invention utilizes the power supply coil 171 of the power supply module 1 and the power receiving coil 271 of the power receiving module 2, and during the transmission of the power, the power receiving module 2 can simultaneously feed back the signal to the power supply module 1 The data is transmitted, and regardless of the power of the transmitted power, the stable transmission of the data signal is not affected; during the induction transmission of the power supply coil 171 and the power receiving coil 271, the direction of the current transmission is sensed by the power supply module 1 to the receiving mode. In group 2, the power receiving module 2 is regarded as a load, and the current drawn by the load is from the power feeding coil 171, and the magnitude of the current affects the amplitude variation on the power feeding coil 171, and is designed to be rectified and signaled by the power receiving module 2. A control switch is disposed in the circuit 23, and the data signal pin 211 and the second data signal pin 212 of the power receiving microprocessor 21 are used to control the reference MOSFET component 236 and the second MOSFET component 238 for rectification and signal feedback. The switching function of the circuit 23 is operated by the cut-off rectification and signal feedback circuit 23 in a very short time, so that the power supply module 1 loses load for a short time, and the power is supplied during the power supply. When transmitting, the amplitude of the power supply coil 171 will be idling due to the loss of load effect, and the signal amplitude will be reduced. When the rectification and signal feedback circuit 23 is turned on again, the power of the back end capacitor 239 is interrupted due to the interruption of power transmission in the previous period. After the rectification and signal feedback circuit 23 is turned on, the capacitor 239 draws more current due to the charging effect, so that the amplitude of the power supply coil 171 is increased. With this effect, the power receiving module 2 can feed back the signal to the power supply module 1, For the data transmission function, no excess power is lost during the feedback signal, and the power receiving module 2 loses power supply only in a short time, but no parts need to withstand current impact, and component damage can be avoided.

Please refer to the first, second, third and fourth figures, which are a simplified circuit diagram of the power supply module of the present invention, a simple circuit diagram of the power receiving module, a simple circuit diagram of the power receiving module, and a second embodiment of the power receiving module. A simple circuit diagram in which the power receiving module 2 of the present invention is configured to pass through a half bridge synchronous rectification method, and the second diode of the second diode 2311 and the second diode 2331 is matched with the second MOSFET component 232 and the second MOSFET. Component 234 two N-channel MOSFETs for rectification, and two N-channel MOSFET components at the low end reduce turn-on losses and require no additional integrated circuitry for control. Only one current is required for each rectification cycle. The loss of the forward voltage difference between the two diodes of the second diode 2311 and the second diode 2331, and the low on-resistance loss of the two N-channel MOSFET elements through the second MOSFET component 232 and the second MOSFET component 234. Compared with the conventional four-diode rectification, the rectification energy loss is reduced by about half; in the rectification and signal feedback circuit 23, the two N-channel reference MOSFET elements 236 and the second MOSFET component 238 are added. Controlling the operation of the rectifier circuit to control the synchronous rectification operation in the rectification and signal feedback circuit 23, when the power receiving module 2 performs the general power receiving mode operation, the two N-channel reference MOSFET components 236 and the second MOSFET components The switch of 238 is in an open state and does not affect the synchronous rectification operation of the rectification and signal feedback circuit 23.

Please refer to the first, second, third and fourth figures, which are a simplified circuit diagram of the power supply module of the present invention, a simple circuit diagram of the power receiving module, a simple circuit diagram of the power receiving module, and a second embodiment of the power receiving module. A simple circuit diagram in which the power receiving microprocessor 21 of the power receiving module 2 of the present invention sets the second data signal pin 211 and the second data signal pin 212 to maintain a low potential state, so that the first MOSFET component 236 and the second MOSFET are provided. The element 238 is kept in an open state. When the power receiving coil 271 receives the power transmitted from the power feeding coil 171 of the power supply module 1, the positive current is entered by the power receiving coil 271 during the positive half cycle, and then passes through the resonant capacitor 27 (please refer to the third As shown in the figure, the positive current loop sequentially passes through the second diode 2311, the voltage detecting circuit 22, and the open circuit protection circuit 24 to the power receiving output end 253 of the voltage stabilizing circuit 25, and the power receiving coil 271 generates a high voltage during the positive half cycle. The potential is turned on via the second resistor 231 and connected to the gate G of the second MOSFET M component 232, so that the ground current is led out from the ground terminal of the second MOSFET M component 232 and flows to the power receiving coil 271 to form a complete Electrical circuit.

Moreover, after the power receiving coil 271 receives the power transmitted from the power feeding coil 171 of the power supply module 1, the positive current flows through the power receiving coil 271 during the negative half cycle (please refer to the fourth figure at the same time), and the positive current loop sequentially passes through the third stage. The diode 2331, the voltage detecting circuit 22, the circuit breaker protection circuit 24 to the power receiving output terminal 253 of the voltage stabilizing circuit 25, and the power receiving coil 271 generates a high potential during the negative half cycle via the second resistor 233 and connected to the second MOSFET M component. The gate G of the 234 is turned on, and the ground current is led out from the ground of the second MOSFET M element 234, and then flows through the resonant capacitor 27 to the power receiving coil 271 to form a complete power supply loop. The third and fourth figures above illustrate the power supply operation of the rectification and signal feedback circuit 23 during the inductive power supply without modulating the feedback state.

Please refer to the first, second, fifth and sixth figures, which are a simplified circuit diagram of the power supply module of the present invention, a simple circuit diagram of the power receiving module, a simple circuit diagram of the power receiving module, and a fourth embodiment of the power receiving module. The simplified circuit diagram, in which the rectification and signal feedback circuit 23 of the power receiving module 2, during the operation of modulating the half-wave feedback signal, the power receiving microprocessor 21 sets the second data signal 211 to a high level (usually receiving power) The operating voltage of the microprocessor 21 is 5V [volts] and the high potential is input to the gate G of the N-channel second MOSFET element 238, so that the switch of the second MOSFET element 238 is turned on, even for the second MOSFET of synchronous rectification. The gate G of the element 234 is kept at a low potential; the second data signal 212 is kept in a low state, and is input to the gate G of the N-channel reference MOSFET element 236 to keep the first MOSFET element 236 open. When the power receiving coil 271 receives the power transmitted from the power feeding coil 171 of the power supply module 1, the positive current is entered by the power receiving coil 271 during the positive half cycle, and then passes through the resonant capacitor 27 (please refer to the fifth figure at the same time), the positive current circuit. The second output terminal 2311, the voltage detecting circuit 22, and the open circuit protection circuit 24 are sequentially connected to the power receiving output terminal 253 of the voltage stabilizing circuit 25, and the power receiving coil 271 generates a high potential through the second resistor 231 during the positive half cycle. The gate G of the second MOSFET element 232 is turned on, so that the ground current is led out from the ground of the second MOSFET element 232 and flows to the power receiving coil 271 to form a complete power supply loop.

Moreover, after the power receiving coil 271 receives the power transmitted from the power feeding coil 171 of the power supply module 1, the positive current is entered by the power receiving coil 271 during the negative half cycle (please refer to the sixth figure at the same time), and the power receiving coil 271 is in the negative half cycle. A high potential is generated via the second resistor 233, connected to the gate G of the second MOSFET element 234, but since the second MOSFET element 238 switch is turned on in this control state, the terminal will remain low, The second MOSFET element 234 is in an open state and cannot conduct the ground current forming circuit. Therefore, the power supply module 253 cannot supply power to the power receiving output terminal 253 during this rectification cycle. At this time, the power receiving module 2 can only draw half of the energy normally supplied. The fifth and sixth figures above illustrate the manner in which the rectification and signal feedback circuit 23 operates during the operation of the modulated half-wave feedback signal during the inductive power supply.

Please refer to the first, second, seventh and eighth figures, which are a simplified circuit diagram of the power supply module of the present invention, a simple circuit diagram of the power receiving module, a simple circuit diagram of the fifth embodiment of the power receiving module, and a sixth embodiment of the power receiving module. The simple circuit diagram, wherein the power receiving microprocessor 21 of the power receiving module 2 of the present invention sets the second data signal pin 211 and the second data signal pin 212 to maintain a high potential state during the operation of modulating the full wave feedback signal. (usually the operating voltage of the power receiving microprocessor 21 is 5V [volts]), and is output to the parametric MOSFET element 236 and the second MOSFET element 238, respectively, so that the two element switches are kept in an on state, thereby making the third The gate G of the two N-channel MOSFETs of the MOSFET component 232 and the second MOSFET component 234 is kept at a low potential. When the power receiving coil 271 receives the power transmitted from the power supply coil 171 of the power supply module 1, the positive half cycle and the negative half cycle When the positive current is entered by the power receiving coil 271, the power supply circuit cannot be formed. At this time, the power receiving coil 271 of the power receiving module 2 is in a no-load state and does not draw energy. The seventh and eighth figures above illustrate the manner in which the rectification and signal feedback circuit 23 operates during the operation of the modulated full-wave feedback signal during the inductive power supply.

Please refer to the first, second, ninth and tenth drawings, which is a simplified circuit diagram of the power supply module of the present invention, a simple circuit diagram of the power receiving module, a modulated full-wave feedback signal waveform diagram, and a waveform diagram of the modulation feedback signal analysis processing. It can be seen that the synchronous rectification circuit formed by the 壹 MOSFET element 232 and the 贰 MOSFET element 234 in the rectification and signal feedback circuit 23 of the power receiving module 2 is at the second data signal pin 211, The second data signal pin 212 is kept at a high potential to keep the gate G of the two N-channel MOSFETs of the second MOSFET component 232 and the second MOSFET component 234 low, thereby causing the circuit to be disconnected (see also the fourth The moments of the seventh, eighth, and eighth diagrams cause the amplitude of the power supply coil 171 of the power supply module 1 to drop slightly, and after the second MOSFET component 232 and the second MOSFET component 234 are turned on, the previous stage The time interrupt power transmission causes the power of the back end capacitor 239 to drop. After the rectification and signal feedback circuit 23 is turned on, the capacitor 239 draws more current due to the charging effect and increases the amplitude of the power supply coil 171. With this effect, The power receiving coil 271 can feed back the data signal to the power feeding coil 171, and the power receiving coil 271 can perform the processing of the feedback data without causing energy loss, and can improve the efficiency of power conversion between the power feeding coil 171 and the power receiving coil 271. During the rectification and signal feedback circuit 23, the amplitude of the power supply coil 171 is first reduced and then amplified, and the data signal fed back by the power receiving coil 271 can be fed back to the power supply coil 171 to enable the power supply microprocessor 11 to be supplied. It is easier to identify, and the data code transmission of the data signal fed back by the power receiving coil 271 is more stable and the effect of power transmission efficiency is improved. In the tenth figure, it is explained that after the signal on the power supply coil 171 is processed by the signal analysis circuit 13, a clear amplitude change is generated, and the signal is again input to the power supply microprocessor 11, and processed by the signal analysis software having the anti-noise function. The function of receiving data signals can be completed.

Therefore, the above description is only a preferred embodiment of the present invention, and is not limited to the patent scope of the present invention. The device for controlling the synchronous rectification switch for data transmission in the inductive power supply of the present invention is through the power supply module. The power supply microprocessor 11 of FIG. 1 supplies power to the power receiving coil 271 of the power receiving module 2 through the power feeding coil 171, and the rectifying and signal feedback circuit 23 of the power receiving module 2 passes through the first MOSFET component 236 and the second MOSFET component 238. The switch disconnects the rectification and signal feedback circuit 23 in a short time to change the load characteristic of the power receiving coil 271, so that the power receiving coil 271 feeds back the data signal to the power supply coil 171 of the power supply module 1, and makes the power supply microprocessor 11 easy. The information code of the data signal can be recognized, and when the power supply module 1 transmits power between the power transmitting coil 171 and the power receiving coil 271 of the power receiving module 2, the rectifying and signal feedback circuit 23 can be used to disconnect the current for a short time. Stable transmission of data signals, reducing the loss of data signal transmission, does not increase the power supply module 1 and the power receiving module 2 during the modulation feedback signal The power loss and the advantage of the maximum transmission power of the inductive power supply can be improved. Therefore, the processes, implementation methods, and the like, which can achieve the aforementioned effects, and related equipment and devices are all covered by the present invention. Modifications and equivalent structural changes are all included in the scope of the patent of the present invention and are combined with Chen Ming.

In the above-mentioned inductive power supply device of the present invention, the device for controlling the synchronous rectification switch for data transmission has the following advantages when actually implementing the manufacturing operation, such as:

(1) The power supply coil 171 of the power supply module 1 and the power receiving line of the power receiving module 2 In the coil 271, when the power transmission is performed, the rectification and signal feedback circuit 23 of the power receiving module 2 disconnects the current for a short time, changes the load characteristic of the power receiving coil 271, and causes the power receiving coil 271 to feed back the data signal to the power feeding coil 171, and It is easy to identify the transmitted data code to achieve stable transmission of data signals and improve power transmission efficiency.

(2) The power receiving coil 271 of the power receiving module 2 does not increase the loss of the power transmitted by the power feeding coil 171 during the modulation feedback signal to the power feeding coil 171, and can improve the efficiency of power conversion.

Therefore, the present invention is directed to a device for controlling data transmission of a synchronous rectification switch in an inductive power supply, and is configured to transmit between a power supply coil and a power receiving coil of a power supply module by a synchronous rectification and signal feedback circuit of the power receiving module. In the case of electric energy, the synchronous rectification and signal feedback circuit is used for short-time disconnection operation, and the amplitude of the power supply coil is changed, so that the power receiving coil feeds back the data signal to the power supply coil, and the power supply module supplies the power supply to the power receiving module. The stable feedback data signal is the main protection focus, and the efficiency of the power conversion is improved, and the function of the data code of the feedback transmission data signal is easily recognized, and the performance of the power transmission is improved, but the above is only the preferred implementation of the present invention. The invention is not limited to the scope of the invention, and the modifications, substitutions, and equivalents of the principles of the invention are intended to be included in the scope of the invention. Chen Ming.

In summary, the device for controlling the synchronous rectification switch for data transmission in the above-mentioned inductive power supply device of the present invention can achieve its efficacy and purpose in practical implementation and application, and therefore the present invention is an excellent research and development. In order to meet the application requirements of the invention patent, 提出 apply in accordance with the law, and hope that the trial committee will grant the case as soon as possible to protect the hard work of the inventor. If there is any doubt in the arbitral tribunal, please do not hesitate to give instructions to the inventor. Real feelings.

1. . . Power supply module

11. . . Power supply microprocessor

12. . . Power supply unit

121. . . MOSFET driver

122. . . High-side MOSFET components

123. . . Low-side MOSFET components

13. . . Signal analysis circuit

131. . . resistance

132. . . capacitance

133. . . Rectifier diode

14. . . Coil voltage detection circuit

141. . . resistance

142. . . capacitance

15. . . Display unit

16. . . Power supply unit

161. . . Power supply

162. . . Detection voltage divider resistor

163. . . Detection voltage divider resistor

164. . . DC buck

17. . . Resonant circuit

171. . . Power supply coil

2. . . Power receiving module

twenty one. . . Powered microprocessor

211. . . Dijon data signal pin

212. . . Dijon data signal pin

twenty two. . . Voltage detection circuit

221. . . resistance

222. . . Detection endpoint

twenty three. . . Rectifier and signal feedback circuit

231. . . Diode resistance

2311. . . Dijon

232. . . Diode MOSFET component

233. . . Diode resistance

2331. . . Dijon

234. . . Diode MOSFET component

235. . . First reference resistance

236. . . First MOSFET component

237. . . Diode resistance

238. . . Diode MOSFET component

239. . . capacitance

twenty four. . . Circuit breaker protection circuit

241. . . resistance

242. . . P-type MOSFET components

243. . . N-type MOSFET components

25. . . Regulator circuit

251. . . Buffer capacitor

252. . . Diode DC buck

253. . . Power receiving output

26. . . Diode DC buck

27. . . Resonant capacitor

271. . . Power receiving coil

The first figure is a simplified circuit diagram of the power supply module of the present invention.

The second figure is a simplified circuit diagram of the power receiving module of the present invention.

The third figure is a simplified circuit diagram of the first embodiment of the power receiving module of the present invention.

The fourth figure is a simplified circuit diagram of the second embodiment of the power receiving module of the present invention.

Figure 5 is a simplified circuit diagram of a third embodiment of the power receiving module of the present invention.

Figure 6 is a simplified circuit diagram of a fourth embodiment of the power receiving module of the present invention.

Figure 7 is a simplified circuit diagram of a fifth embodiment of the power receiving module of the present invention.

Figure 8 is a simplified circuit diagram of a sixth embodiment of the power receiving module of the present invention.

The ninth diagram is a waveform diagram of the modulated full-wave feedback signal of the present invention.

The tenth figure is a waveform diagram of the modulation feedback signal analysis processing of the present invention.

2. . . Power receiving module

twenty one. . . Powered microprocessor

211. . . Dijon data signal pin

212. . . Dijon data signal pin

twenty two. . . Voltage detection circuit

221. . . resistance

222. . . Detection endpoint

twenty three. . . Rectifier and signal feedback circuit

231. . . Diode resistance

2311. . . Dijon

232. . . Diode MOSFET component

233. . . Diode resistance

2331. . . Dijon

234. . . Diode MOSFET component

235. . . First reference resistance

236. . . First MOSFET component

237. . . Diode resistance

238. . . Diode MOSFET component

239. . . capacitance

twenty four. . . Circuit breaker protection circuit

241. . . resistance

242. . . P-type MOSFET components

243. . . N-type MOSFET components

25. . . Regulator circuit

251. . . Buffer capacitor

252. . . Diode DC buck

253. . . Power receiving output

26. . . Diode DC buck

27. . . Resonant capacitor

271. . . Power receiving coil

Claims (11)

The device for controlling the synchronous rectification switch for data transmission in an inductive power supply includes a power supply module and a power receiving module, and the power supply module includes a power supply microprocessor of the built-in program, and is electrically connected to the power supply microprocessor. The power supply driving unit, the signal analysis circuit, the coil voltage detecting circuit, the display unit, the power supply unit and the resonant circuit, and the resonant circuit is electrically connected to the power supply coil for transmitting power and receiving the data signal, and the power supply coil is disposed on the power receiving module. The power receiving coil is electrically connected to the power supply coil, wherein the power receiving module is a powered microprocessor including a built-in program, and the power receiving microprocessor is electrically connected to the voltage detecting circuit, the rectifying and signal feedback circuit, and the open circuit. a protection circuit, a voltage stabilization circuit, a DC bucker, and a power receiving coil, and the rectifying and signal feedback circuit includes a second resistor, a second MOSFET component, a second diode, and a second MOSFET, respectively, electrically connected to the electrodes of the power receiving coil. The second resistor, the second MOSFET component, and the second diode are electrically connected by the second resistor and the second MOSFET device. Receiving a first reference resistor is electrically connected to a microprocessor electrically, the first reference element MOSFET and II by the first resistor, the first II MOSFET device is electrically connected to the other of the store by the microprocessor electrically resistive electric connection of the first MOSFET element store. The device for controlling the synchronous rectification switch for data transmission in the power supply device of the first aspect of the patent application, wherein the ninth resistance, the second 贰 resistance, the second 壹 diode, and the second 贰 diode of the power receiving module are connected in parallel The capacitor is electrically connected to the resonant capacitor and the power receiving coil and the voltage detecting circuit. The device for controlling the synchronous rectification switch for data transmission in the power supply device of the first aspect of the patent application, wherein the first MOSFET component of the power receiving module is electrically connected to the data signal pin of the powered microprocessor, The first MOSFET component is electrically connected to the data signal pin of the powered microprocessor. The device for controlling the synchronous rectification switch for data transmission in the power supply device according to the first aspect of the patent application, wherein the 壹 MOSFET component and the 贰 MOSFET component of the power receiving module are respectively rectifiers of the N-channel MOSFET component; The MOSFET component and the 肆th MOSFET component are respectively N-channel switching elements. The device for controlling the synchronous rectification switch for data transmission in the power supply device according to the first aspect of the patent application, wherein the power supply microprocessor of the power supply module is electrically connected to the power supply driving unit, the signal analysis circuit, and the coil voltage detecting circuit respectively. The display unit and the power supply unit are electrically connected to the resonant circuit and the power supply coil by using the power supply driving unit. A device for controlling a synchronous rectification switch for data transmission in a power supply device according to claim 5, wherein the power supply driving unit comprises a MOSFET driver electrically connected to the power supply microprocessor, and the MOSFET driver is electrically connected to the high end respectively. The MOSFET component and the low-side MOSFET component are electrically connected to the resonant circuit and the power supply coil through the high-side MOSFET component and the low-side MOSFET component, and the high-side MOSFET component is electrically connected to the power supply unit. The device for controlling a synchronous rectification switch for data transmission in a power supply device according to claim 5, wherein the signal analysis circuit includes one or more resistors, one or more capacitors, and a rectifying diode. A device for controlling a synchronous rectification switch for data transmission in a sense power supply device according to claim 7, wherein one or more resistors, one or more capacitors of the signal analysis circuit are connected in series or in parallel Electrical connection. The device for controlling a synchronous rectification switch for data transmission in a sense power supply device according to claim 5, wherein the coil voltage detection circuit comprises a capacitor and a resistor connected in series, and the capacitor and the resistor connected in series are electrically connected respectively. The power supply microprocessor, the series resistor and the diode are electrically connected to the resonant circuit and the signal analysis circuit by using the series resistor and the diode. The device for controlling synchronous rectification switch for data transmission in a power supply device according to claim 5, wherein the power supply unit comprises a power supply, a series-connected detection voltage dividing resistor and a DC bucker, and respectively It is connected to the power supply microprocessor and the power supply drive unit. A device for controlling a synchronous rectification switch for data transmission in a power supply device according to claim 5, wherein the power receiving module is operable to modulate a full-wave feedback signal or to modulate a half-wave feedback signal.