CN108347159A - A kind of wireless driving power - Google Patents
A kind of wireless driving power Download PDFInfo
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- CN108347159A CN108347159A CN201810186176.9A CN201810186176A CN108347159A CN 108347159 A CN108347159 A CN 108347159A CN 201810186176 A CN201810186176 A CN 201810186176A CN 108347159 A CN108347159 A CN 108347159A
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- 239000004065 semiconductor Substances 0.000 claims description 35
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
- 238000005859 coupling reaction Methods 0.000 claims description 26
- 230000005674 electromagnetic induction Effects 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000003760 hair shine Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 208000031361 Hiccup Diseases 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
- H02M1/092—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices the control signals being transmitted optically
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
- H02M3/33576—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33592—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements having at least one active switching element at the secondary side of an isolation transformer having a synchronous rectifier circuit or a synchronous freewheeling circuit at the secondary side of an isolation transformer
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The present invention provides a kind of wireless driving power, including loop of power circuit and control loop；Loop of power circuit includes power input side and output lateral circuit；Power input lateral circuit is connected with the input terminal of external voltage source, pulse signal source and power output lateral circuit；The output end of power output lateral circuit is connected with an external charging equipment；Control loop includes sample circuit and signal control circuit；The input terminal of sample circuit is connected with the output end of power output lateral circuit；Signal control circuit is connected with the output end of sample circuit and pulse signal source.Implement the present invention, control loop and loop of power circuit can be distinguished, to reduce complexity in circuits, output voltage or current waveform is also avoided to have the ingredient of control signal.
Description
Technical field
The present invention relates to power technique fields more particularly to a kind of wireless driving powers.
Background technology
Wireless driving power is widely applied to the occasions such as wireless charger.The electric energy of wireless driving power passes through two couplings
Zygonema circle is transferred to outlet side from input side, and the output of voltage or electric current control is exactly by being multiplexed two coupling coils come real
It is existing.
However, traditional wireless driving power is in forming the continual course of work, the control loop of input and output side
For the closed loop not with any electrical contact, but coupled by above-mentioned two since the control signal of input and output side can be superimposed upon
Coil is formed by loop of power circuit, control signal extraction need to be come out by signal extracting circuit.
Inventor's discovery, the above-mentioned wireless driving power for being partly superimposed together control loop and loop of power circuit, not only
So that integrated circuit is complicated, and output voltage or current waveform can be made to have the ingredient of control signal.
Invention content
Technical problem to be solved of the embodiment of the present invention is, provides a kind of wireless driving power, can not only distinguish
Control loop and loop of power circuit, to reduce complexity in circuits, moreover it is possible to output voltage or current waveform be avoided to have control letter
Number ingredient.
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of wireless driving powers, including loop of power circuit
And control loop；Wherein,
The loop of power circuit includes power input lateral circuit and power output lateral circuit；Wherein, the power input lateral circuit
First input end is connected with an external voltage source, and the second input terminal is connected with the pulse signal source that a signal frequency can be changed, and exports
End is connected between the input terminal of the power output lateral circuit by electromagnetic induction realization, for according to the pulse signal source
Signal frequency generate corresponding electric energy, and the electric energy is transmitted to the power output lateral circuit；The power output side
The output end of circuit is connected with an external charging equipment, for supplying the electric energy to external charging equipment transmission
Electricity；
The control loop includes sample circuit and signal control circuit；Wherein, the input terminal of the sample circuit and the work(
The output end that rate exports lateral circuit is connected, the voltage and or current size for incuding the power output lateral circuit output；Institute
The input terminal for stating signal control circuit is connected with the output end of the sample circuit, and output end is connected with the pulse signal source,
The voltage and or current size that the sample circuit is incuded for identification, and it is big according to the voltage and or current recognized
It is small to adjust the signal frequency of the pulse signal source so that the signal frequency of the pulse signal source becomes in a constant range
Change, output voltage or electric current to control the power output lateral circuit can maintain on corresponding preset value.
Wherein, the power input lateral circuit include the LC resonance circuit that is formed by the first coupling coil and the first capacitance with
And it is connected and drives the driving circuit of the LC resonance circuit with the LC resonance circuit；
The power output lateral circuit include one end with first coupling coil realize the second coupling coil of electromagnetic induction with
And the first diode rectifier bridge or metal-oxide-semiconductor circuit of synchronous rectification being connected with the second coupling coil other end.
Wherein, the driving circuit in the power input lateral circuit is symmetrical half bridge circuit, asymmetry half-bridge circuit, full-bridge
The one of circuit.
Wherein, the asymmetry half-bridge circuit include half-bridge driven chip, the second diode rectifier bridge, the first metal-oxide-semiconductor and
Second metal-oxide-semiconductor；Wherein,
The half-bridge driven chip and the pulse signal source, the grid of the grid of first metal-oxide-semiconductor and second metal-oxide-semiconductor
Extremely it is connected；
The drain electrode of first metal-oxide-semiconductor is connected by second diode rectifier bridge with the external voltage source, source electrode and institute
One end of the drain electrode and the LC resonance circuit of stating the second metal-oxide-semiconductor is connected；
The source electrode of second metal-oxide-semiconductor is connected and is grounded with the other end of the LC resonance circuit.
Wherein, first metal-oxide-semiconductor and second metal-oxide-semiconductor are N-channel type metal-oxide-semiconductor.
Wherein, the sample circuit includes first singlechip, voltage collection circuit and light emitting diode；Wherein, described
One microcontroller is connected with the anode of the output end of the voltage collection circuit and the light emitting diode；The voltage collection circuit
Input terminal be connected with the output end of the power output lateral circuit；The cathode of the light emitting diode is grounded；
The signal control circuit includes second singlechip and photosensitive sensor；Wherein, the photosensitive sensor shines with described
Diode matches, and one end ground connection, the other end is connected with the second singlechip；The second singlechip also with the pulse
Signal source is connected.
Wherein, the light emitting diode is the light emitting diode using wavelength between 300nM-750nM；It is described photosensitive
Sensor is the photodiode using wavelength between 300nM-750nM.
Wherein, the sample circuit further includes the first three terminal regulator being connected with the first singlechip.
Wherein, the signal control circuit further includes the second three terminal regulator being connected with the second singlechip.
Implement the embodiment of the present invention, has the advantages that：
In embodiments of the present invention, since control loop in wireless driving power and loop of power circuit are two independent circuits, and
Circuit is simple and reliable, can not only distinguish control loop and loop of power circuit, to reduce complexity in circuits, also so that control letter
It number will not be superimposed upon on loop of power circuit, output voltage or current waveform is avoided to have the ingredient of control signal.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These attached drawings obtain other attached drawings and still fall within scope of the invention.
Fig. 1 is the system structure connection diagram of wireless driving power provided in an embodiment of the present invention；
Fig. 2 is a system structure connection diagram of loop of power circuit in Fig. 1；
Fig. 3 is the another system structure connection diagram of loop of power circuit in Fig. 1；
The system structure that Fig. 4 is Fig. 2 when with the driving circuit of power input lateral circuit in Fig. 3 being asymmetry half-bridge circuit, which connects, to be shown
It is intended to；
Fig. 5 is a system structure connection diagram of control loop in Fig. 1；
Fig. 6 is the another system structure connection diagram of control loop in Fig. 1；
Fig. 7 is the application scenario diagram of power input lateral circuit in Fig. 2 and Fig. 3；
Fig. 8 is the application scenario diagram of power output lateral circuit in Fig. 2 and Fig. 3；
Fig. 9 is the application scenario diagram of sample circuit in Fig. 5 and Fig. 6；
Figure 10 is the application scenario diagram of signal control circuit in Fig. 5 and Fig. 6.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
As shown in Figure 1, in the embodiment of the present invention, a kind of wireless driving power provided, including loop of power circuit 1 and control
Circuit 2；Wherein,
Loop of power circuit 1 includes power input lateral circuit 11 and power output lateral circuit 12；Wherein, the of power input lateral circuit 11
One input terminal a1 is connected with an external voltage source Ud, the pulse signal source PWM phases that the second input terminal a2 can be changed with a signal frequency
Even, it is connected by electromagnetic induction realization between output end a3 and the input terminal of power output lateral circuit 12, for being believed according to pulse
The signal frequency of number source PWM generates corresponding electric energy, and electric energy is transmitted to power output lateral circuit 12；Power output lateral circuit
12 output end and an external charging equipment（It is not shown）It is connected, for electric energy to be powered to the transmission of external charging equipment；
Control loop 2 includes sample circuit 21 and signal control circuit 22；Wherein, the input terminal and power output of sample circuit 21
The output end of lateral circuit 12 is connected, the voltage and or current size exported for induced power output lateral circuit 12；Signal controls
The input terminal of circuit 22 is connected with the output end of sample circuit 21, and output end is connected with pulse signal source PWM, samples for identification
The voltage and or current size that circuit 21 is incuded, and pulse letter is adjusted according to the voltage and or current size recognized
The signal frequency of number source PWM so that the signal frequency of pulse signal source PWM changes in a constant range, to control power
The output voltage or electric current for exporting lateral circuit 12 can maintain on corresponding preset value.
It should be noted that signal control circuit 22 identifies that the voltage and or current size that sample circuit 21 is incuded can
Directly to carry out numerical identification, can also judgement identification further be carried out according to numerical value.For example, by the numerical value of identification and presetting
Threshold value be compared, and judge to identify by the open and-shut mode of switch, light or other physical objects according to comparison result.
In embodiments of the present invention, as shown in Figures 2 and 3, power input lateral circuit 11 includes by the first coupling coil
1111 and first capacitance 1112 formed LC resonance circuit 111 and be connected with LC resonance circuit 111 and drive LC resonance circuit
111 driving circuit 112；Power output lateral circuit 12 includes second that one end and the first coupling coil 1111 realize electromagnetic induction
Coupling coil 121 and the first diode rectifier bridge 122 being connected with 121 other end of the second coupling coil（As shown in Figure 2）Or
Metal-oxide-semiconductor circuit of synchronous rectification 123（As shown in Figure 3）.Wherein, the driving circuit 112 in power input lateral circuit 11 is symmetrical half
The one of bridge circuit, asymmetry half-bridge circuit, full-bridge circuit.
In one embodiment, as shown in figure 4, asymmetry half-bridge circuit includes half-bridge driven chip 1121, the two or two pole
Pipe rectifier bridge 1122, the first metal-oxide-semiconductor 1123 and the second metal-oxide-semiconductor 1124；Wherein,
The grid of half-bridge driven chip 1121 and pulse signal source PWM, the grid G of the first metal-oxide-semiconductor 1123 and the second metal-oxide-semiconductor 1124
Pole G is connected；
The drain D of first metal-oxide-semiconductor 1123 is connected by the second diode rectifier bridge 1122 with external voltage source Ud, source S and the
The drain D of two metal-oxide-semiconductors 1124 and one end of LC resonance circuit 111 are connected；
The source S of second metal-oxide-semiconductor 1124 is connected and is grounded with the other end of LC resonance circuit 111.
Wherein, the first metal-oxide-semiconductor 1123 and the second metal-oxide-semiconductor 1124 are N-channel type metal-oxide-semiconductor.
In embodiments of the present invention, as shown in figure 5, sample circuit 21 includes first singlechip 211, voltage collection circuit
212 and light emitting diode 213；Wherein, the output end and light emitting diode 213 of first singlechip 211 and voltage collection circuit 212
Anode（+）It is connected；The input terminal of voltage collection circuit 212 is connected with the output end of power output lateral circuit 12；Light-emitting diodes
The cathode of pipe 213（-）Ground connection；Signal control circuit 22 includes second singlechip 221 and photosensitive sensor 222；Wherein, photosensitive biography
Sensor 222 matches the optical signal sent out to inducing luminous diode 213 with light emitting diode 213, and one end ground connection is another
End is connected with second singlechip 221；Second singlechip 221 is also connected with pulse signal source PWM.In one embodiment, it shines
Diode 213 is the light emitting diode using wavelength between 300nM-750nM；Photosensitive sensor 222 is using wavelength position
Photodiode between 300nM-750nM.
Certainly, as shown in fig. 6, in order to ensure sample circuit 21 and the acquisition of signal control circuit 22 and the voltage tool generated
There is stability, therefore sample circuit 21 further includes the first three terminal regulator 214 being connected with first singlechip 211；Signal controls
Circuit 22 further includes the second three terminal regulator 223 being connected with second singlechip 221.
The operation principle of wireless driving power in the embodiment of the present invention is：Electric energy is defeated by the power in loop of power circuit 1
Enter electromagnetic field between the first coupling coil 1111 of lateral circuit 11 and the second coupling coil 121 of power output lateral circuit 12 from
Input side is transferred to outlet side, output voltage and/or electricity of the sample circuit 21 in control loop 2 power output lateral circuit 12
The signal acquisition of stream comes out, and then drives light emitting diode 213 to shine by electro-optic conversion, signal controls in control loop 2
The photosensitive sensor 222 of circuit 22 receives the optical signal of light emitting diode 213, and optical signal is become pairs of by opto-electronic conversion
The electric impulse signal answered adjusts the signal frequency of pulse signal source PWM so that the signal frequency of pulse signal source PWM is in a perseverance
Determine variation in range, output voltage or electric current to control power output lateral circuit 22 can maintain on corresponding preset value.
As shown in Figure 7 to 10, the application scenarios of the wireless driving power in the embodiment of the present invention are described further：
Fig. 7 is power input lateral circuit.IC101 is half-bridge driven chip, and T101 is the first metal-oxide-semiconductor, and T102 is the second metal-oxide-semiconductor,
D101-D104 forms the second diode rectifier bridge, and L101 is the first coupling coil, and C104 is the first capacitance.At this time IC101,
D101-D104 and T101/T102 groups become the driving circuit of asymmetry half-bridge circuit；L101 and C104 constitutes LC resonance circuit,
And resonant frequency is fo.Meanwhile IC102 constitutes the auxiliary power circuit of power input side, provides VCC0 to believing in control loop
Number control circuit, while the V10 half-bridge drive circuits formed to IC101 being provided.
Fig. 8 is power output lateral circuit.L201 is the second coupling coil, and D201-D204 forms the first diode rectifier bridge.
At this point, the second coupling coil L201 in the first coupling coil L101 and Fig. 8 in Fig. 7 constitutes near-field coupling coil, energy from
First coupling coil L101 is coupled to the second coupling coil L201.There is no line between the two coupling coils of L101 and L201,
Thus realize wireless constant voltage source.
Fig. 9 is sample circuit.U301 is the first three terminal regulator, and output voltage Vo is converted into accessory power supply VS；R301
Voltage collection circuit is constituted with R302, sampled signal is input to the ends ADC of first singlechip U302；LED401 is light-emitting diodes
Pipe.
Figure 10 is signal control circuit.U602 is the second three terminal regulator, and accessory power supply VCC0 in Fig. 7 is converted into assisting
Power supply VP；Second singlechip U601 constitutes signal processing；Photodiode P501 is photosensitive sensor, receives light emitting diode
The optical signal of LED401.
At this point, wireless driving power is after the power is turned on, power input lateral circuit obtains the half-bridge driven signal of pulse signal source
The signal frequency fs of PWM1 can slowly lower from high toward fo, and power output lateral circuit obtains electricity by the second coupling coil L201
Can, output voltage Vo.Can slowly it lower toward fo from high with the signal frequency fs of half-bridge driven signal PWM1, sample circuit is adopted
The output voltage Vo collected can slowly rise, and VS is stable and to start the first singlechip U302 output duty cycles of sample circuit variable
Electric pulse drive signal PWM2 as handshake come drive 4 Light-emitting diode LED 401 shine.Once signal control circuit
In photosensitive sensor P501 receive the handshake of 4 Light-emitting diode LED 401, will produce a feedback voltage V f to the
Two microcontroller U602, second singlechip U602 enter normal working condition after detecting handshake, at this time the second monolithic
Machine U602 adjusts the signal PWM1 of pulse signal source into line frequency according to Vf, and again by the signal PWM1 inputs after adjustment
Driving asymmetrical half-bridge is removed to IC101 half-bridge driven chips.After Vo reaches stationary value, first singlechip U302 outputs are shaken hands
The duty ratio of signal PWM2 also reaches stable, so that the value of the feedback voltage V f in signal control circuit is also stablized, therefore
The frequency fs of the signal PWM1 of pulse signal source stablizes does small closed loop adjusting above and below some working frequency, to output
Voltage Vo is stabilized.
In the case that power output lateral circuit is not disposed close to power input lateral circuit, or there is iron plate close to work(
In the case that rate inputs lateral circuit, although the driving frequency fs of power input lateral circuit is from high toward the resonant frequency fo of coupling coil
Slowly lower, but photosensitive sensor P501 is not received by the handshake of Light-emitting diode LED 401, power input lateral circuit
It is just operated in hiccup state, for example power input lateral circuit is stopped 30 seconds, then the signal frequency of power input lateral circuit
Rate fs slowly lowers from high toward resonant frequency fo again, in cycles, until photosensitive sensor P501 receives light emitting diode
The signal of LED401 just enters closed-loop working state.The electromagnetism of high intensity can be exported always to avoid power input lateral circuit in this way
, one may interfere with neighbouring electrical equipment, and two may form eddy-current loss in close iron plate, waste electric energy, very
To safety accidents such as generation fires.
Implement the embodiment of the present invention, has the advantages that：
In embodiments of the present invention, since control loop in wireless driving power and loop of power circuit are two independent circuits, and
Circuit is simple and reliable, can not only distinguish control loop and loop of power circuit, to reduce complexity in circuits, also so that control letter
It number will not be superimposed upon on loop of power circuit, output voltage or current waveform is avoided to have the ingredient of control signal.
It is above disclosed to be only a preferred embodiment of the present invention, the power of the present invention cannot be limited with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (9)
1. a kind of wireless driving power, which is characterized in that including loop of power circuit and control loop；Wherein,
The loop of power circuit includes power input lateral circuit and power output lateral circuit；Wherein, the power input lateral circuit
First input end is connected with an external voltage source, and the second input terminal is connected with the pulse signal source that a signal frequency can be changed, and exports
End is connected between the input terminal of the power output lateral circuit by electromagnetic induction realization, for according to the pulse signal source
Signal frequency generate corresponding electric energy, and the electric energy is transmitted to the power output lateral circuit；The power output side
The output end of circuit is connected with an external charging equipment, for supplying the electric energy to external charging equipment transmission
Electricity；
The control loop includes sample circuit and signal control circuit；Wherein, the input terminal of the sample circuit and the work(
The output end that rate exports lateral circuit is connected, the voltage and or current size for incuding the power output lateral circuit output；Institute
The input terminal for stating signal control circuit is connected with the output end of the sample circuit, and output end is connected with the pulse signal source,
The voltage and or current size that the sample circuit is incuded for identification, and it is big according to the voltage and or current recognized
It is small to adjust the signal frequency of the pulse signal source so that the signal frequency of the pulse signal source becomes in a constant range
Change, output voltage or electric current to control the power output lateral circuit can maintain on corresponding preset value.
2. wireless driving power as described in claim 1, which is characterized in that the power input lateral circuit includes by the first coupling
The LC resonance circuit and be connected with the LC resonance circuit and drive the LC resonance circuit that zygonema circle and the first capacitance are formed
Driving circuit；
The power output lateral circuit include one end with first coupling coil realize the second coupling coil of electromagnetic induction with
And the first diode rectifier bridge or metal-oxide-semiconductor circuit of synchronous rectification being connected with the second coupling coil other end.
3. wireless driving power as claimed in claim 2, which is characterized in that the driving circuit in the power input lateral circuit
For symmetrical half bridge circuit, the one of asymmetry half-bridge circuit, full-bridge circuit.
4. wireless driving power as claimed in claim 3, which is characterized in that the asymmetry half-bridge circuit includes half-bridge driven
Chip, the second diode rectifier bridge, the first metal-oxide-semiconductor and the second metal-oxide-semiconductor；Wherein,
The half-bridge driven chip and the pulse signal source, the grid of the grid of first metal-oxide-semiconductor and second metal-oxide-semiconductor
Extremely it is connected；
The drain electrode of first metal-oxide-semiconductor is connected by second diode rectifier bridge with the external voltage source, source electrode and institute
One end of the drain electrode and the LC resonance circuit of stating the second metal-oxide-semiconductor is connected；
The source electrode of second metal-oxide-semiconductor is connected and is grounded with the other end of the LC resonance circuit.
5. wireless driving power as claimed in claim 4, which is characterized in that first metal-oxide-semiconductor and second metal-oxide-semiconductor are equal
For N-channel type metal-oxide-semiconductor.
6. wireless driving power as described in claim 1, which is characterized in that the sample circuit includes first singlechip, electricity
Press Acquisition Circuit and light emitting diode；Wherein, output end and the hair of the first singlechip with the voltage collection circuit
The anode of optical diode is connected；The input terminal of the voltage collection circuit is connected with the output end of the power output lateral circuit；
The cathode of the light emitting diode is grounded；
The signal control circuit includes second singlechip and photosensitive sensor；Wherein, the photosensitive sensor shines with described
Diode matches, and one end ground connection, the other end is connected with the second singlechip；The second singlechip also with the pulse
Signal source is connected.
7. wireless driving power as claimed in claim 6, which is characterized in that the light emitting diode is to be located at using wavelength
Light emitting diode between 300nM-750nM；The photosensitive sensor is photosensitive between 300nM-750nM using wavelength
Diode.
8. wireless driving power as claimed in claim 7, which is characterized in that the sample circuit further includes and described first single
The first connected three terminal regulator of piece machine.
9. wireless driving power as claimed in claim 7, which is characterized in that the signal control circuit further includes and described the
The second connected three terminal regulator of two microcontrollers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186176.9A CN108347159B (en) | 2018-03-07 | 2018-03-07 | Wireless driving power supply |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810186176.9A CN108347159B (en) | 2018-03-07 | 2018-03-07 | Wireless driving power supply |
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| CN108347159A true CN108347159A (en) | 2018-07-31 |
| CN108347159B CN108347159B (en) | 2023-10-27 |
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|---|---|---|---|---|
| US20080055942A1 (en) * | 2006-09-06 | 2008-03-06 | Delta Electronics, Inc. | Resonance converter and synchronous rectification driving method thereof |
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| CN204190475U (en) * | 2014-08-11 | 2015-03-04 | 长城信息产业股份有限公司 | A kind of wireless charging reflector and wireless charging device |
| CN208028768U (en) * | 2018-03-07 | 2018-10-30 | 深圳市博为光电股份有限公司 | A kind of wireless driving power |
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| CN101714845A (en) * | 2009-12-18 | 2010-05-26 | 江苏技术师范学院 | Drive circuit of brushless DC motor |
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|---|---|
| CN108347159B (en) | 2023-10-27 |
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