CN113555973B - Manufacturing method of optimal frequency wireless energy transfer device - Google Patents
Manufacturing method of optimal frequency wireless energy transfer device Download PDFInfo
- Publication number
- CN113555973B CN113555973B CN202110850383.1A CN202110850383A CN113555973B CN 113555973 B CN113555973 B CN 113555973B CN 202110850383 A CN202110850383 A CN 202110850383A CN 113555973 B CN113555973 B CN 113555973B
- Authority
- CN
- China
- Prior art keywords
- resistor
- circuit
- capacitor
- frequency
- pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 238000012546 transfer Methods 0.000 title claims description 28
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 230000001105 regulatory effect Effects 0.000 claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims description 56
- 238000001514 detection method Methods 0.000 claims description 19
- 230000005669 field effect Effects 0.000 claims description 15
- 238000004146 energy storage Methods 0.000 claims description 13
- 101000688543 Homo sapiens Shugoshin 2 Proteins 0.000 claims description 9
- 102100024238 Shugoshin 2 Human genes 0.000 claims description 9
- 239000008186 active pharmaceutical agent Substances 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- YWXYYJSYQOXTPL-SLPGGIOYSA-N isosorbide mononitrate Chemical compound [O-][N+](=O)O[C@@H]1CO[C@@H]2[C@@H](O)CO[C@@H]21 YWXYYJSYQOXTPL-SLPGGIOYSA-N 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 239000012467 final product Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 239000000047 product Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
- G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmitters (AREA)
Abstract
The invention belongs to the field of wireless energy transmission, and particularly relates to a manufacturing method of an optimal frequency wireless energy transmission device. According to the invention, the optimal working frequency is measured through the testing device, and the electronic value of the sliding resistor is regulated according to the frequency, so that the final product works at a more reasonable frequency point.
Description
Technical Field
The invention belongs to the field of wireless energy transmission, and particularly relates to a manufacturing method of an optimal frequency wireless energy transmission device.
Background
The magnetic resonance energy effectively transmits energy, two fundamental conditions need to be satisfied, the transmitting coil and the receiving coil have the same resonance frequency, and the transmitting frequency of the transmitting coil is required to be at the resonance frequency of the coil. These two basic conditions are not met and the energy transfer is not substantially practical.
Because the matching capacitors of the same specification and model of different batches have 5% of errors, the error of the transmitting coil reaches 10%, and the coil resonance frequency of different manufacturers of different batches is greatly shifted, so that the fixed coil driving frequency can deviate from the inherent resonance frequency point of the coil, and the frequency is not synchronous. Even if the energy is the same batch, different products have certain errors, and the energy transmission efficiency is affected.
How to use a simple and efficient way to make a wireless energy transfer device work at a more reasonable frequency is the focus of research by those skilled in the art.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a manufacturing method of an optimal frequency wireless energy transfer device. According to the invention, the optimal working frequency is measured through the testing device, and the electronic value of the sliding resistor is regulated according to the frequency, so that the final product works at a more reasonable frequency point.
The technical scheme of the invention is as follows: the manufacturing method of the optimal frequency wireless energy transfer device comprises a testing device and a wireless energy transfer device, and is characterized in that: during testing, the anode of the thyristor D of the testing device is connected with the transmitting coil Lf and the transmitting matching capacitor Cf of the circuit to be tested, the waveform generator of the testing device is used for detecting current signals output by the current detection circuit according to input waveforms with different control signal changes, the control circuit records values of collected currents under different control signals, and the frequency output by the waveform generator is recorded as maximum current frequency when the measuring resistor Rs generates maximum current to work; the wireless energy transfer device comprises a circuit to be tested, an adjustable square wave device and a working thyristor DA, wherein the anode of the working thyristor DA is connected with a transmitting coil Lf and a transmitting matching capacitor Cf of the circuit to be tested, and the sliding resistor R2 is adjusted to enable the output frequency of the adjustable square wave device to be the maximum current frequency; the testing device comprises a waveform generator, a thyristor D and a current detection circuit, wherein the cathode of the thyristor D is connected with a measuring resistor Rs and then is connected with the power supply ground, the waveform generator is connected with the grid electrode of the thyristor D, the current detection circuit collects the current of the measuring resistor Rs, the control circuit collects voltage signals output by the current detection circuit and controls the waveform generator to generate waveforms, the waveform generator comprises a frequency generation chip U1, a crystal oscillator module U2 and a pulse width regulating circuit, the crystal oscillator module U2 is connected with a chip of the frequency generation chip U1, a control pin of the frequency generation chip U1 is connected with the control circuit, a control command is output through the control circuit to enable the output end OUT of the frequency generation chip U1 to output different frequencies, the output end OUT of the frequency generation chip U1 is connected with the input of the pulse width regulating circuit, the frequency generation chip U1 is an AD9833 chip, the pulse width regulating circuit comprises a timer U3, a resistor R7 and a capacitor C5, pins 6 and 7 of the timer U3 are connected with the resistor R and the capacitor C5, the pins 2 are used as starting pins, the pins are used as frequency signal output pins, the voltage V1 is applied to the pins 5 pins, and the voltage V7 is connected with the capacitor U3 and the capacitor C1 is connected with the capacitor U0 through the timer C3 in series; the current detection circuit comprises a triode, a diode D1, a first resistor R5, a second resistor R6, a third resistor R3 and a fourth resistor R4, wherein the first resistor R5 is connected with the emitter of the triode and then grounded, the second resistor R6 is connected with the base electrode of the triode after being connected in parallel with a measuring resistor Rs, one end of the third resistor R3 is connected with a power supply, the other end of the third resistor R3 is connected with the base electrode of the triode, the anode of the diode D1 is connected with the power supply after being connected with the fourth resistor R4, and the cathode of the diode D1 is connected with the collector electrode of the triode;
the manufacturing method of the optimal frequency wireless energy transfer device is characterized by comprising the following steps of: the maximum current frequency is f, f=1/t=1/{ 0.69 (r1+2r2) C1}, the resistance R1 is 2.1kΩ, and the frequency generation capacitance C1 is 0.01uF.
The manufacturing method of the optimal frequency wireless energy transfer device is characterized by comprising the following steps of: the fourth resistor R4 is 0.1kΩ, the measurement resistor Rs is 0.51 Ω, the second resistor R6 is 7.2kΩ, and the third resistor R3 is 47kΩ.
The manufacturing method of the optimal frequency wireless energy transfer device is characterized by comprising the following steps of: the circuit to be tested of the wireless energy transfer device comprises a transmitting coil Lf, a transmitting matching capacitor Cf, a receiving coil Lj, a receiving matching capacitor Cj, a boosting circuit and an energy storage circuit, wherein the cathode of a working thyristor DA is connected with a power supply ground, the receiving coil Lj and the receiving matching capacitor Cj are connected in parallel and then connected with the boosting circuit, and the boosting circuit is connected with the energy storage circuit. The adjustable squarer is connected with the grid electrode of the working thyristor DA,
the manufacturing method of the optimal frequency wireless energy transfer device is characterized by comprising the following steps of: the adjustable square wave device comprises a chip UC, a resistor R1, a sliding resistor R2, a frequency generation capacitor C1 and a capacitor C2, wherein the chip UC is a NE555 chip, a VCC pin and a RST pin of the chip UC are connected with a power supply, the resistor R1 is connected between the power supply and a DIG pin, the sliding resistor R2 is connected between the DIG pin and a TRI pin, the TRI pin and the THR pin are in short circuit, the frequency generation capacitor C1 is connected between the TRI pin and the ground, the capacitor C2 is connected between a CON pin and the ground, and the UT is square wave signal output; the boosting circuit comprises a field effect tube UA, a boosting inductor LS, a boosting capacitor CS and a diode DS, wherein the boosting inductor LS is connected with the drain electrode and the grid electrode G of the field effect tube UA, the boosting capacitor CS and the diode DS are connected in series and then connected with the boosting inductor LS and the power supply ground, and the source electrode S of the field effect tube UA is connected with the energy storage circuit; when the voltage is too low, the field effect tube UA is turned off, an input signal stores energy for the boost inductor LS, when the voltage is suitable for charging, the field effect tube UA is turned on, and the input signal and the boost inductor LS supply energy for a load together; the energy storage circuit is a super Farad capacitor CA or a chemical battery DA.
The beneficial effects of the invention are as follows: the optimal working frequency is detected by the testing device, and then the resistor is regulated in the wireless energy transmission device, so that the final product can work in a reasonable frequency range, the regulating means is simple, the wireless energy transmission device is convenient to regulate, the price of the wireless energy transmission device is low, the relative price of the testing device is relatively high, but the testing device is a product for testing, and the quantity of the testing device is small, so that the product cost can be greatly reduced by adopting the device of the invention.
Drawings
FIG. 1 is a schematic circuit diagram of a test apparatus.
FIG. 2 is a circuit diagram of a frequency generation of the test apparatus.
FIG. 3 is a pulse width modulation circuit diagram of the test apparatus.
FIG. 4 is a schematic diagram of a current detection circuit of the test device.
Fig. 5 is a schematic circuit diagram of a wireless energy transfer device.
Fig. 6 is a circuit diagram of an adjustable square wave device of a wireless energy transfer device.
Detailed Description
The technical scheme of the invention is further described below with reference to the accompanying drawings.
The invention relates to a manufacturing method of an optimal frequency wireless energy transfer device, which comprises a testing device and a wireless energy transfer device, wherein during testing, an anode of a thyristor D is connected with a transmitting coil Lf and a transmitting matching capacitor Cf of a circuit to be tested, as shown in figure 5, the circuit to be tested of the wireless energy transfer device is a part framed by a broken line, and because an energy storage circuit exists in a working circuit, a load can be connected or not.
Then the waveform generator of the testing device changes different input waveforms according to the control signals, meanwhile, the control circuit detects the current signals output by the current detection circuit, the control circuit records the values of the collected currents under different control signals, and the frequency output by the waveform generator when the measuring resistor Rs generates the maximum current is recorded as the maximum current frequency.
Finally, the anode of the working thyristor DA is connected with the transmitting coil Lf and the transmitting matching capacitor Cf of the circuit to be tested, and the resistance value of the sliding resistor R2 is calculated and regulated according to the formula f=1/T=1/{ 0.69 (R1+2R2) C1 }. In the formula, f is the maximum current frequency, and the resistor R1 and the frequency generating capacitor C1 are fixed values, so that a debugger can work at the optimal frequency by adjusting the resistance value to the corresponding resistance value.
As shown in fig. 1, the test device of the present invention includes a waveform generator, a thyristor D, and a current detection circuit. The cathode of the thyristor D is connected to the measuring resistor Rs and then to the power ground. The waveform generator is connected with the grid electrode of the thyristor D, the current detection circuit collects the current of the measuring resistor Rs, and the control circuit collects the voltage signal output by the current detection circuit and controls the waveform generator to generate waveforms.
As shown in fig. 2 and 3, the waveform generator of the present invention includes a frequency generating chip U1, a crystal oscillator module U2, and a pulse width adjusting circuit, where the crystal oscillator module U2 is connected with the frequency generating chip U1 and provides a stable frequency source for the frequency generating chip U1, a control pin of the frequency generating chip U1 is connected with the control circuit, and the control circuit outputs a control command to make an output terminal OUT of the frequency generating chip U1 output different frequencies, and an output terminal OUT of the frequency generating chip U1 is connected with an input of the pulse width adjusting circuit. The capacitances C1, C2, C3, C4 in fig. 2 can select a capacitance of 0.1 uF. The frequency generating chip U1 of the present invention may be an AD9833 chip. The pulse width regulating circuit comprises a timer U3, a resistor R, a sliding resistor R7 and a capacitor C5, wherein the 6 th pin and the 7 th pin of the timer U3 are connected into the resistor R and the capacitor C5, the 2 nd pin is used as a starting pin, the 3 rd pin is used as a frequency signal output pin, the 5 th pin is used for applying a voltage V1, the 5 th pin is connected with a power supply through the serial sliding resistor R7, and the values of the voltage V1 and the VCC voltage determine the pulse width of an output signal f 1. The timer U3 of the present invention may be a 555 timer, and the capacitor C5 is a capacitor of 0.1 uF. Thus, the invention can generate sine wave or square wave according to the requirement, the output pulse width of the sine wave or square wave can be modulated according to the requirement, and the proper working frequency can be selected according to the optimal frequency.
As shown in fig. 4, the current detection circuit of the present invention includes a triode, a diode D1, a first resistor R5, a second resistor R6, a third resistor R3, and a fourth resistor R4, where the first resistor R5 is connected to the emitter of the triode and then grounded, the second resistor R6 is connected in parallel with a measurement resistor Rs and then connected to the base of the triode, one end of the third resistor R3 is connected to a power supply, the other end is connected to the base of the triode, the anode of the diode D1 is connected to the fourth resistor R4 and then connected to the power supply, and the cathode of the diode D1 is connected to the collector of the triode. The fourth resistor R4 in the circuit can be a smaller resistor, such as a resistor of 0.1KΩ, a measuring resistor Rs of 0.51 Ω, a second resistor R6 of 7.2KΩ and a third resistor R3 of 47KΩ, so that the current detection circuit of the invention utilizes the collector to amplify, uses a smaller resistor, consumes a small voltage to detect the current I, and can adjust the detection sensitivity by adjusting the base resistor of the triode.
As shown in fig. 1, in the working process of the present invention, the control circuit outputs a control signal to the waveform generator, the waveform generator inputs waveforms according to different changes of the control signal, and the control circuit detects the current signal output by the current detection circuit, and the control circuit records the values of the collected currents under different control signals, and records the frequency output by the waveform generator when the measuring resistor Rs generates the maximum current to work as the maximum current frequency.
The wireless energy transfer device comprises a circuit to be tested, an adjustable square wave device and a working thyristor DA, wherein the circuit to be tested comprises a transmitting coil Lf, a transmitting matching capacitor Cf, a receiving coil Lj, a receiving matching capacitor Cj, a boosting circuit and a storage circuit. The transmitting coil Lf and the transmitting matching capacitor Cf are connected in parallel and then connected with the anode of the working thyristor DA, and the cathode of the working thyristor DA is connected with the power ground. The receiving coil Lj and the receiving matching capacitor Cj are connected in parallel and then connected with a booster circuit, and the booster circuit is connected with the energy storage circuit. The adjustable square wave device is connected with the grid electrode of the working thyristor DA, and the adjustable square wave device generates a waveform.
As shown in FIG. 2, the adjustable square wave device comprises a chip UC, a resistor R1, a sliding resistor R2, a frequency generation capacitor C1 and a capacitor C2, wherein the chip UC can be a NE555 chip, the VCC pin and the RST pin of the chip UC are connected with a power supply, the resistor R1 is connected between the power supply and a DIG pin, the sliding resistor R2 is connected between the DIG pin and a TRI pin, the TRI pin and the THR pin are in short circuit, the frequency generation capacitor C1 is connected between the TRI pin and the ground, and the capacitor C2 is connected between the CON pin and the ground. OUT is square wave signal output, its output frequency is f=1/t=1/{ 0.69 (r1+2r2) C1}, because the value of the sliding resistor R2 in the circuit can be manually adjusted, the square wave signal output frequency of the invention can be adjusted, and modulation of the transmitting frequency can be realized. In the invention, the frequency generating capacitor C1 is 0.01uF, the capacitor C2 is 1uF, the resistor R1 is 2.1KΩ, and the resistance change of the sliding resistor R2 is 35-70 KΩ, so that the output square wave frequency can be adjusted between 1000H z and 2000Hz, thereby realizing the adjustment of the transmitting frequency between corresponding working frequencies.
As shown in fig. 1, the boost circuit includes a field effect transistor UA, a boost inductor LS, a boost capacitor CS, and a diode DS. The boost inductor LS is connected with the drain electrode and the grid electrode G of the field effect transistor UA, and the boost capacitor CS and the diode DS are connected in series and then connected with the boost inductor LS and the power ground. The source S of the field effect transistor UA is connected to a tank circuit. When the voltage is too low, for example, the distance between the transmitting coil and the receiving coil is too far, the field effect tube UA is turned off, the input signal supplies energy to the boosting inductor LS, when the voltage is suitable for charging, the field effect tube UA is turned on, the input signal and the boosting inductor LS supply energy to the load together, and the output voltage is the voltage after boosting at the moment, so that the boosting effect is achieved.
The energy storage circuit can store the energy received by the system and supply power for the subsequent circuit. The energy storage element adopts a super Faraday capacitor CA or a chemical battery DA or both are connected in parallel, and stores energy when the input power is larger than the power required by the Internet of things equipment, otherwise, the energy storage element supplies power to the Internet of things equipment so as to be used when the input power is insufficient.
As shown in fig. 1, in the process of processing and debugging, the device of the invention firstly measures the optimal working frequency of the corresponding transmitting and receiving coil through an instrument, correspondingly adjusts the resistance of the sliding resistor R2, so that the adjustable squarer works at the optimal working frequency, and the device of the invention can work in the optimal transmitting and receiving frequencies finally, thereby improving the efficiency.
Claims (5)
1. The manufacturing method of the optimal frequency wireless energy transfer device comprises a testing device and a wireless energy transfer device, and is characterized in that: during testing, the anode of the thyristor D of the testing device is connected with the transmitting coil Lf and the transmitting matching capacitor Cf of the circuit to be tested, the waveform generator of the testing device is used for detecting current signals output by the current detection circuit according to input waveforms with different control signal changes, the control circuit records values of collected currents under different control signals, and the frequency output by the waveform generator is recorded as maximum current frequency when the measuring resistor Rs generates maximum current to work; the wireless energy transfer device comprises a circuit to be tested, an adjustable square wave device and a working thyristor DA, wherein the anode of the working thyristor DA is connected with a transmitting coil Lf and a transmitting matching capacitor Cf of the circuit to be tested, the resistance value of a sliding resistor R2 is calculated and regulated according to the formula f=1/T=1/{ 0.69 (R1+2R2) C1}, in the formula, f is the maximum current frequency, the resistor R1 and a frequency generating capacitor C1 are fixed values, and the wireless energy transfer device can work at the optimal frequency by regulating the sliding resistor R2 to the corresponding resistance values; the testing device comprises a waveform generator, a thyristor D and a current detection circuit, wherein the cathode of the thyristor D is connected with a measuring resistor Rs and then is connected with the power supply ground, the waveform generator is connected with the grid electrode of the thyristor D, the current detection circuit collects the current of the measuring resistor Rs, the control circuit collects voltage signals output by the current detection circuit and controls the waveform generator to generate waveforms, the waveform generator comprises a frequency generation chip U1, a crystal oscillator module U2 and a pulse width regulating circuit, the crystal oscillator module U2 is connected with a chip of the frequency generation chip U1, a control pin of the frequency generation chip U1 is connected with the control circuit, a control command is output through the control circuit to enable the output end OUT of the frequency generation chip U1 to output different frequencies, the output end OUT of the frequency generation chip U1 is connected with the input of the pulse width regulating circuit, the frequency generation chip U1 is an AD9833 chip, the pulse width regulating circuit comprises a timer U3, a resistor R7 and a capacitor C5, pins 6 and 7 of the timer U3 are connected with the resistor R and the capacitor C5, the pins 2 are used as starting pins, the pins are used as frequency signal output pins, the voltage V1 is applied to the pins 5 pins, and the voltage V7 is connected with the capacitor U3 and the capacitor C1 is connected with the capacitor U0 through the timer C3 in series; the current detection circuit comprises a triode, a diode D1, a first resistor R5, a second resistor R6, a third resistor R3 and a fourth resistor R4, wherein the first resistor R5 is connected with the emitter of the triode and then grounded, the second resistor R6 is connected with the base electrode of the triode after being connected in parallel with a measuring resistor Rs, one end of the third resistor R3 is connected with a power supply, the other end of the third resistor R3 is connected with the base electrode of the triode, the anode of the diode D1 is connected with the power supply after being connected with the fourth resistor R4, and the cathode of the diode D1 is connected with the collector electrode of the triode.
2. The method for manufacturing the optimal frequency wireless energy transfer device according to claim 1, wherein: the maximum current frequency is f, f=1/t=1/{ 0.69 (r1+2r2) C1}, the resistance R1 is 2.1kΩ, and the frequency generation capacitance C1 is 0.01uF.
3. The method for manufacturing the optimal frequency wireless energy transfer device according to claim 1, wherein: the fourth resistor R4 is 0.1kΩ, the measurement resistor Rs is 0.51 Ω, the second resistor R6 is 7.2kΩ, and the third resistor R3 is 47kΩ.
4. The method for manufacturing the optimal frequency wireless energy transfer device according to claim 1, wherein: the circuit to be tested of the wireless energy transfer device comprises a transmitting coil Lf, a transmitting matching capacitor Cf, a receiving coil Lj, a receiving matching capacitor Cj, a boosting circuit and an energy storage circuit, wherein the cathode of a working thyristor DA is connected with a power supply ground, the receiving coil Lj and the receiving matching capacitor Cj are connected in parallel and then connected with the boosting circuit, the boosting circuit is connected with the energy storage circuit, and an adjustable square wave device is connected with the grid electrode of the working thyristor DA.
5. The method for manufacturing the optimal frequency wireless energy transfer device according to claim 1, wherein: the adjustable square wave device comprises a chip UC, a resistor R1, a sliding resistor R2, a frequency generation capacitor C1 and a capacitor C2, wherein the chip UC is a NE555 chip, a VCC pin and a RST pin of the chip UC are connected with a power supply, the resistor R1 is connected between the power supply and a DIG pin, the sliding resistor R2 is connected between the DIG pin and a TRI pin, the TRI pin and the THR pin are in short circuit, the frequency generation capacitor C1 is connected between the TRI pin and the ground, the capacitor C2 is connected between a CON pin and the ground, and the UT is square wave signal output; the boosting circuit comprises a field effect tube UA, a boosting inductor LS, a boosting capacitor CS and a diode DS, wherein the boosting inductor LS is connected with the drain electrode and the grid electrode G of the field effect tube UA, the boosting capacitor CS and the diode DS are connected in series and then connected with the boosting inductor LS and the power supply ground, and the source electrode S of the field effect tube UA is connected with the energy storage circuit; when the voltage is too low, the field effect tube UA is turned off, an input signal stores energy for the boost inductor LS, when the voltage is suitable for charging, the field effect tube UA is turned on, and the input signal and the boost inductor LS supply energy for a load together; the energy storage circuit is a super Farad capacitor CA or a chemical battery DA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110850383.1A CN113555973B (en) | 2021-07-27 | 2021-07-27 | Manufacturing method of optimal frequency wireless energy transfer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110850383.1A CN113555973B (en) | 2021-07-27 | 2021-07-27 | Manufacturing method of optimal frequency wireless energy transfer device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113555973A CN113555973A (en) | 2021-10-26 |
| CN113555973B true CN113555973B (en) | 2024-03-26 |
Family
ID=78133051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110850383.1A Active CN113555973B (en) | 2021-07-27 | 2021-07-27 | Manufacturing method of optimal frequency wireless energy transfer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113555973B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135153A (en) * | 1977-04-29 | 1979-01-16 | Dynascan Corporation | Circuit for testing high frequency current amplifying capability of bipolar transistors |
| CN104981956A (en) * | 2012-12-18 | 2015-10-14 | 核科学股份有限公司 | Nonlinear system identification for optimization of wireless power transfer |
| CN108808888A (en) * | 2018-06-08 | 2018-11-13 | 深圳市汇森无线传输有限公司 | A kind of wireless charging system and its resonance compensation shunt method |
| CN208908385U (en) * | 2018-10-29 | 2019-05-28 | 兰州大学 | Wireless energy transfer system |
| CN112821577A (en) * | 2020-12-31 | 2021-05-18 | 黄石邦柯科技股份有限公司 | Remote wireless energy transfer device and method based on automatic frequency adjustment |
-
2021
- 2021-07-27 CN CN202110850383.1A patent/CN113555973B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4135153A (en) * | 1977-04-29 | 1979-01-16 | Dynascan Corporation | Circuit for testing high frequency current amplifying capability of bipolar transistors |
| CN104981956A (en) * | 2012-12-18 | 2015-10-14 | 核科学股份有限公司 | Nonlinear system identification for optimization of wireless power transfer |
| CN108808888A (en) * | 2018-06-08 | 2018-11-13 | 深圳市汇森无线传输有限公司 | A kind of wireless charging system and its resonance compensation shunt method |
| CN208908385U (en) * | 2018-10-29 | 2019-05-28 | 兰州大学 | Wireless energy transfer system |
| CN112821577A (en) * | 2020-12-31 | 2021-05-18 | 黄石邦柯科技股份有限公司 | Remote wireless energy transfer device and method based on automatic frequency adjustment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113555973A (en) | 2021-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108333492B (en) | Insulation detection circuit and method and battery management system | |
| CN108445397B (en) | Parameter selection method and device for insulation detection circuit and storage medium | |
| CN106324538B (en) | A kind of shelf depreciation automated calibration system | |
| CN101210950B (en) | Electronic components voltage-resisting test apparatus | |
| CN101251585A (en) | Method and apparatus for checking global error of high voltage energy metering installation | |
| CN105738836A (en) | DC/DC converter automatic test system | |
| CN102520385A (en) | Automatic error calibration method for single-phase electrical energy meter | |
| CN101788653B (en) | Magnetoelectric loop wire test method for continuously applying scanning magnetic field and device thereof | |
| CN111983545B (en) | Testing method and testing device for communication module of intelligent electric energy meter | |
| CN113555973B (en) | Manufacturing method of optimal frequency wireless energy transfer device | |
| CN110554242B (en) | Impedance measuring device for grid-connected inverter | |
| CN104678134A (en) | AC constant current source, internal resistance detecting device of cell and cell testing instrument | |
| CN111308232B (en) | System and method for measuring stray parameters of current loop of high-power current conversion module | |
| CN111060774A (en) | Fuel cell simulation system and method of operating the same | |
| CN113866661A (en) | Power supply dynamic response test method, system and related components | |
| US20140009990A1 (en) | Method and apparatus for characterizing power supply impedance for power delivery networks | |
| CN109342827B (en) | Circuit and method for measuring capacitance value through capacitance alternating current charge and discharge | |
| CN204514975U (en) | AC constant-current source, internal resistance of cell pick-up unit and cell tester | |
| CN203788304U (en) | Device for testing function of hardware interface | |
| CN201289525Y (en) | Checkout device for zinc oxide lightning arrester tester | |
| CN201417260Y (en) | Fractional-octave type insulator equivalent salt deposit density measuring instrument | |
| CN113555972B (en) | Simple wireless energy transfer device convenient for modulating transmitting frequency | |
| CN103837170B (en) | Rate-adaptive pacemaker class sensor automatic frequency compensation circuit and method | |
| CN113452155A (en) | Self-adaptive starting optimal frequency wireless energy transfer device | |
| CN209746039U (en) | High-frequency impedance scanning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |