CN103779951A - Electric bicycle magnetic coupling resonance type wireless charger - Google Patents
Electric bicycle magnetic coupling resonance type wireless charger Download PDFInfo
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Abstract
The invention provides an electric bicycle magnetic coupling resonance type wireless charger which comprises a main circuit part and a control circuit part. The main circuit part comprises a full bridge rectifier and filter circuit, a half bridge inverter circuit, a transmitting end series resonance circuit, a receiving end series resonance circuit, a high frequency transformer T1 and a high frequency rectifier and filter circuit. The control circuit part comprises a receiving end voltage and current detection circuit, a receiving end charging data transmitting circuit, a transmitting end wireless data receiving circuit, a transmitting end current detection circuit, a phase-locked loop frequency tracking circuit, a PWM inverter control circuit and an inverter drive circuit. According to the invention, wireless charging is used to replace wired charging; electric bicycle magnetic coupling resonance type wireless charging is realized; sparks, which are produced in insertion and extraction processes, of a power supply plug are eliminated, and the troubles of influenced plug service life and poor contact are eliminated; the operation of charging is convenient; electrical energy transmission is carried out through resonance coupling; the electrical energy transmission frequency is reduced; and the influence of electromagnetic radiation on an environment is greatly reduced.
Description
Technical field
The present invention relates to magnet coupled resonant type wireless electric energy transmission technology, especially a kind of electric bicycle magnet coupled resonant type wireless charger.
Background technology
The charger that current electric bicycle uses, is substantially all wired charger, and attaching plug can produce electric spark in plug process, affects the plug life-span, and the time has been grown and also can cause loose contact.In electric bicycle this technical field of charging, also there is not ripe wireless charging technical scheme at present.
The subject matter that wireless charging exists is at present, the one, efficiency is not high, main cause is that the control ratio of energy is more difficult, cannot really realize the point-to-point transmission of energy, meeting scattering equal loss part energy in the process of transmission, the efficiency of energy converter is not high is also the key factor that affects whole system efficiency; The 2nd, electromagnetic radiation safety problem, needs to solve on the impact of personal safety and surrounding environment.Because the transmission of wireless energy both can be well controlled unlike traditional supply power mode on transmission path, also unlike wireless telecommunications, transmit small power, high-octane energy density will certainly be brought impact to personal safety.
Magnet coupled resonant type wireless delivery of electrical energy adopts two same frequency resonant circuits, utilizes magnetic field to pass through near field transmission, and radiation is little, has directivity, moderate distance transmission, and efficiency of transmission is higher.In magnet coupled resonant type wireless delivery of electrical energy, electromagnetic field increases and decay rapidly with transmission range, utilize two circuit that resonance coupling occurs to catch the electromagnetic field with range attenuation, in the time of launching circuit and receiving loop generation resonance, make most of energy be delivered to receiving loop by launching circuit.
Therefore utilizing magnet coupled resonant type wireless electric energy transmission technology to realize wireless charger, is that a kind of efficiency is high, the technical scheme that electromagnetic radiation is relatively little.
Summary of the invention
The object of the present invention is to provide a kind of electric bicycle magnet coupled resonant type wireless charger, can eliminate the electric spark that attaching plug produces in plug process, affect the trouble that plug life-span and loose contact bring, facilitate charging operations; By resonance coupled transfer electric energy, greatly reduce the impact of Electromagnetic Radiation on Environment.The technical solution used in the present invention is:
A kind of electric bicycle magnet coupled resonant type wireless charger, comprises main circuit part and control circuit part.Main circuit part comprises full-bridge rectification filter circuit, half-bridge inversion circuit, transmitting terminal series resonant circuit, receiving terminal series resonant circuit, high frequency transformer T1, rectifier filter circuit; Control circuit part comprises receiving-end voltage current detection circuit, receiving terminal charging data transmit circuit, transmitting terminal receive data by wireless circuit, transmitting terminal current detection circuit, phase-locked loop frequency tracking circuit, PWM inverter control circuit, inverse changing driving circuit.
Input ac voltage converts galvanic current to through full-bridge rectification filter circuit and presses Ud1, and through half-bridge inversion circuit output high-frequency ac voltage U1, in transmitting terminal series resonant circuit, producing resonance potential and resonance current is launching circuit resonance current i1; The resonance frequency of receiving terminal series resonant circuit and transmitting terminal series resonant circuit equates, produce receiving loop output voltage U 2 by electromagnetic coupled resonance, receiving loop output voltage U 2 is transformed into and exports through high frequency transformer T1 the high frequency voltage that charging voltage Uo is corresponding, carry out rectification and filtering through rectifier filter circuit, output charging voltage Uo.Receiving-end voltage current detection circuit detects charging voltage and the charging current of receiving terminal output, and charging voltage and charging current data are through receiving terminal charging data transmit circuit wireless transmission subsequently; Transmitting terminal receive data by wireless circuit receives and sends the charging voltage receiving and charging current data to PWM inverter control circuit; Launching circuit resonance current, by after transmitting terminal current detection circuit acquisition testing, produces frequency-tracking signal through phase-locked loop frequency tracking circuit, gives PWM inverter control circuit; PWM inverter control circuit is according to charging voltage set-point, charging voltage and charging current detected value and the frequency-tracking signal set, produce the PWM pulse-width modulation control signal of respective frequencies and pulse duration, isolate and power amplification through inverse changing driving circuit, output driving pulse Ug1 and Ug2, control the switching tube in half-bridge inversion circuit.Pulse width modulation (PWM) is the abbreviation of English " Pulse Width Modulation ".
Described full-bridge rectification filter circuit comprises diode D1～D4 and filter capacitor Cd1, and diode D1～D4 forms an input full bridge rectifier, and filter capacitor Cd1 is connected in parallel on two outputs of input full bridge rectifier.
Described half-bridge inversion circuit comprises MOS switching tube VT1, VT2 and anti-paralleled diode VD1, VD2; Described transmitting terminal series resonant circuit comprises resonant capacitance C1 and the transmitting coil L1 of series connection; The grid of switching tube VT1, VT2 meets respectively driving pulse Ug1 and Ug2, and the drain electrode of switching tube VT1 connects the positive output end of input full bridge rectifier, and source electrode connects the drain electrode of switching tube VT2, and the source electrode of switching tube VT2 connects the negative output terminal of input full bridge rectifier; The negative electrode of diode VD1 and anode connect respectively drain electrode and the source electrode of switching tube VT1; The negative electrode of diode VD2 and anode connect respectively drain electrode and the source electrode of switching tube VT2; The drain node that is connected of switching tube VT1 source electrode and switching tube VT2 connects one end of transmitting terminal series resonant circuit, the negative output terminal of another termination input full bridge rectifier of transmitting terminal series resonant circuit.
Described receiving terminal series resonant circuit comprises resonant capacitance C2 and the receiving coil L2 of series connection; The two ends of series resonant circuit are connected with the elementary two ends of high frequency transformer T1 respectively; The value of resonant capacitance C1 and transmitting coil L1, and the value of resonant capacitance C2 and receiving coil L2 equates the resonance frequency of receiving terminal series resonant circuit and transmitting terminal series resonant circuit, and resonance frequency is less than 200KHz.
Described rectifier filter circuit comprises diode Dr1-Dr4 and filter capacitor Cd2, diode Dr1-Dr4 composition high frequency full bridge rectifier, the secondary two ends of the input termination high frequency transformer T1 of this high frequency full bridge rectifier, filter capacitor Cd2 is connected in parallel on two outputs of this high frequency full bridge rectifier.
Described receiving-end voltage current detection circuit, comprises direct current voltage sensor V2 and DC current sensor A2, for detection of output charging voltage and charging current; Direct current voltage sensor V2 is connected in parallel on two outputs of high frequency full bridge rectifier, and DC current sensor A2 is arranged on an output of high frequency full bridge rectifier.
Described receiving terminal charging data transmit circuit is for sending to transmitting terminal receive data by wireless circuit by charging voltage and charging current data wireless; Transmitting terminal receive data by wireless circuit is used for receiving charging voltage and charging current data and sends PWM inverter control circuit to.
Described transmitting terminal current detection circuit comprises current sensor A1, is launching circuit resonance current i1 for detection of the electric current of transmitting terminal series resonant circuit.
Described phase-locked loop frequency tracking circuit, for making launching circuit resonance current i1 follow the tracks of launching circuit resonance potential, keeps phase angle of launching circuit resonance current i1 hysteresis launching circuit resonance potential.
Described PWM inverter control circuit, for according to charging voltage set-point, charging voltage and charging current detected value and the frequency-tracking signal set, produces the PWM pulse-width modulation control signal of respective frequencies and pulse duration, offers inverse changing driving circuit.
Described inverse changing driving circuit for PWM pulse-width modulation control signal is isolated, voltage and current amplifies, and drives switching tube VT1 and VT2 in half-bridge inversion circuit.
The invention has the advantages that and adopt wireless charging to replace wired charging, eliminate the electric spark that attaching plug produces in plug process, affect the trouble that plug life-span and loose contact bring, facilitate charging operations; By resonance coupled transfer electric energy, reduce radio energy transmitted frequency, electric energy transmitted frequency eases down to below 200KHz, greatly reduces the impact of Electromagnetic Radiation on Environment; Adopt semi-bridge inversion and the control of PWM pulsewidth power, simplify circuit structure.
Accompanying drawing explanation
Fig. 1 is electric bicycle magnet coupled resonant type wireless charger construction block diagram.
Fig. 2 is electric bicycle magnet coupled resonant type wireless charger main circuit schematic diagram.
Fig. 3 is one of electric bicycle magnet coupled resonant type wireless charger main circuit work wave.
Fig. 4 is two of electric bicycle magnet coupled resonant type wireless charger main circuit work wave.
Embodiment
Below in conjunction with concrete drawings and Examples, the invention will be further described.
According to technical scheme provided by the invention, a kind of electric bicycle magnet coupled resonant type wireless charger, is characterized in that: comprise main circuit part and control circuit part; Main circuit part comprises full-bridge rectification filter circuit, half-bridge inversion circuit, transmitting terminal series resonant circuit, receiving terminal series resonant circuit, high frequency transformer T1, rectifier filter circuit; Control circuit part comprises receiving-end voltage current detection circuit, receiving terminal charging data transmit circuit, transmitting terminal receive data by wireless circuit, transmitting terminal current detection circuit, phase-locked loop frequency tracking circuit, PWM inverter control circuit, inverse changing driving circuit.
Full-bridge rectification filter circuit comprises diode D1～D4 and filter capacitor Cd1, and diode D1～D4 forms an input full bridge rectifier, and filter capacitor Cd1 is connected in parallel on two outputs of input full bridge rectifier.
Half-bridge inversion circuit comprises MOS switching tube VT1, VT2 and anti-paralleled diode VD1, VD2.Transmitting terminal series resonant circuit comprises resonant capacitance C1 and the transmitting coil L1 of series connection; The grid of switching tube VT1, VT2 meets respectively driving pulse Ug1 and Ug2, and the drain electrode of switching tube VT1 connects the positive output end of input full bridge rectifier, and source electrode connects the drain electrode of switching tube VT2, and the source electrode of switching tube VT2 connects the negative output terminal of input full bridge rectifier; The negative electrode of diode VD1 and anode connect respectively drain electrode and the source electrode of switching tube VT1; The negative electrode of diode VD2 and anode connect respectively drain electrode and the source electrode of switching tube VT2; The drain node that is connected of switching tube VT1 source electrode and switching tube VT2 connects one end of transmitting terminal series resonant circuit, the negative output terminal of another termination input full bridge rectifier of transmitting terminal series resonant circuit.
Receiving terminal series resonant circuit comprises resonant capacitance C2 and the receiving coil L2 of series connection; The two ends of series resonant circuit are connected with the elementary two ends of high frequency transformer T1 respectively; The value of resonant capacitance C1 and transmitting coil L1, and the value of resonant capacitance C2 and receiving coil L2 equates the resonance frequency of receiving terminal series resonant circuit and transmitting terminal series resonant circuit, and resonance frequency is less than 200KHz.
Rectifier filter circuit comprises diode Dr1-Dr4 and filter capacitor Cd2, diode Dr1-Dr4 composition high frequency full bridge rectifier, the secondary two ends of the input termination high frequency transformer T1 of this high frequency full bridge rectifier, filter capacitor Cd2 is connected in parallel on two outputs of this high frequency full bridge rectifier.
Receiving-end voltage current detection circuit, comprises direct current voltage sensor V2 and DC current sensor A2, for detection of output charging voltage and charging current; Direct current voltage sensor V2 is connected in parallel on two outputs of high frequency full bridge rectifier, and DC current sensor A2 is arranged on an output of high frequency full bridge rectifier.
Transmitting terminal current detection circuit comprises current sensor A1, is launching circuit resonance current i1 for detection of the electric current of transmitting terminal series resonant circuit.
System general diagram as shown in Figure 1, main circuit part: single-phase input ac voltage ~ U converts galvanic current to through diode full-bridge rectification filter circuit and presses Ud1, through half-bridge inversion circuit output high-frequency ac voltage U1, in the transmitting terminal series resonant circuit of resonant capacitance C1 and transmitting coil L1 composition, produce resonance potential and resonance current is launching circuit resonance current i1; Resonant capacitance C2 and receiving coil L2 composition receiving terminal series resonant circuit, the resonance frequency of receiving terminal series resonant circuit and transmitting terminal series resonant circuit equates, produce receiving loop output voltage U 2 and receiving loop resonance current i2 by electromagnetic coupled resonance, receiving loop output voltage U 2 is transformed into and exports through high frequency transformer T1 the high frequency voltage that charging voltage Uo is corresponding, carry out rectification and filtering through rectifier filter circuit, output charging voltage Uo.
Control circuit part: charging voltage and the charging current of receiving terminal output are transformed into 1-5V normal voltage (corresponding 4-20mA) through voltage sensor V2, current sensor A2 by receiving-end voltage current detection circuit, through the receiving terminal charging data transmit circuit wireless transmission of single-chip microcomputer and wireless communication module composition; The transmitting terminal receive data by wireless circuit being made up of single-chip microcomputer and wireless communication module sends the charging voltage receiving and charging current data to PWM inverter control circuit; Launching circuit resonance current passes through, after current sensor A1, transmitting terminal current detection circuit acquisition testing, to be transformed into 1-5V standard ac square-wave voltage, produces frequency-tracking signal through phase-locked loop frequency tracking circuit, gives PWM inverter control circuit; PWM inverter control circuit is according to charging voltage set-point, charging voltage and charging current detected value and the frequency-tracking signal set, produce the PWM pulse-width modulation control signal of respective frequencies and pulse duration, isolate and power amplification through inverse changing driving circuit, output driving pulse Ug1 and Ug2, control switching tube VT1 and VT2 in half-bridge inversion circuit.
Further as shown in Figure 2, main circuit schematic diagram, single phase alternating current (A.C.) voltage ~ U is through the single-phase diode full bridge rectifier of diode D1-D4 composition, be transformed into direct voltage, be transformed into galvanic current through filter capacitor Cd1 and press Ud1, be transformed into high-frequency ac square-wave voltage U1 through the half-bridge inversion circuit being mainly made up of VT1, VT2, the transmitting terminal series resonant circuit forming through transmitting coil L1 and resonance capacitor C 1 produces resonance potential and electric current receiving coil L2 is launched in transmitting coil L1.Receiving coil L2 and resonance capacitor C 2 form receiving terminal series resonant circuit.Receiving loop output voltage U 2, is transformed into and exports through high frequency transformer T1 the high frequency voltage that charging voltage Uo is corresponding, is transformed into direct voltage via the full bridge rectifier of high-frequency diode Dr1-Dr4 composition, through filter capacitor Cd2 filtering, and output charging voltage Uo.
Further as Fig. 3, main circuit each point waveform when PWM control impuls width is maximum.
T1-t2, the t1 moment, phase-locked loop frequency tracking circuit detects launching circuit resonance current i1 zero crossing, PWM inverter control circuit, according to i1 crossover point signal, sends inversion by inverse changing driving circuit and drives signal Ug1=high level, makes VT1 conducting, VT2 continues to turn-off, half-bridge inversion circuit output voltage U 1 is for just, and its amplitude is Ud1, and launching circuit resonance current i1 rises; Receiving loop output voltage U 2 and receiving loop resonance current i2 follow U1 and i1 changes;
T2-t3, the t2 moment, phase-locked loop frequency tracking circuit detects that launching circuit resonance current i1 gets back to before zero crossing, PWM inverter control circuit is according to the current signal before i1 zero passage, send inversion by inverse changing driving circuit and drive cut-off signals Ug1=0, VT1 is turn-offed, and VT2 continues to turn-off simultaneously, enters Dead Time;
T3-t4, the t3 moment, phase-locked loop frequency tracking circuit detects launching circuit resonance current i1 zero crossing, PWM inverter control circuit, according to i1 crossover point signal, sends inversion by inverse changing driving circuit and drives signal Ug2=high level, makes VT2 conducting, VT1 continues to turn-off, half-bridge inversion circuit enters inner loop stream mode, U1=0, and launching circuit resonance current i1 declines; Receiving loop output voltage U 2 and receiving loop resonance current i2 follow U1 and i1 changes;
T4-t5, the t4 moment, phase-locked loop frequency tracking circuit detects that launching circuit resonance current i1 gets back to before zero crossing, PWM inverter control circuit is according to the current signal before i1 zero passage, send inversion by inverse changing driving circuit and drive cut-off signals Ug2=0, VT2 is turn-offed, and VT1 continues to turn-off simultaneously, enters Dead Time; A work period of t1-t5 stage finishes.The t5 moment rises and starts the next work period.
Further as Fig. 4, main circuit each point waveform when PWM control impuls width adjusting.
T1-t2, the t1 moment, phase-locked loop frequency tracking circuit detects launching circuit resonance current i1 zero crossing, PWM inverter control circuit, according to i1 crossover point signal, sends inversion by inverse changing driving circuit and drives signal Ug1=high level, makes VT1 conducting, VT2 continues to turn-off, half-bridge inversion circuit output voltage U 1 is for just, and its amplitude is Ud1, and launching circuit resonance current i1 rises; Receiving loop output voltage U 2 and receiving loop resonance current i2 follow U1 and i1 changes;
T2-t3, in the t2 moment, PWM inverter control circuit is according to charging voltage set-point Vg and charging voltage detected value Vo comparison, in the time of Vg=Vo, send inversion by inverse changing driving circuit and drive cut-off signals Ug1=0, VT1 is turn-offed, VT2 continues to turn-off simultaneously, enters Dead Time;
T3-t4, in the t3 moment, Dead Time finishes, PWM inverter control circuit sends inversion by inverse changing driving circuit and drives signal Ug2=high level, makes VT2 conducting, and VT1 continues to turn-off, half-bridge inversion circuit enters inner loop stream mode, U1=0, and launching circuit resonance current i1 declines; Dropped to before zero at i1, the first conducting of anti-paralleled diode VD2 of VT2, drops to after zero VT2 conducting at i1; Receiving loop output voltage U 2 and receiving loop resonance current i2 follow U1 and i1 changes;
T4-t5, the t4 moment, phase-locked loop frequency tracking circuit detects that launching circuit resonance current i1 gets back to before zero crossing, PWM inverter control circuit is according to the current signal before i1 zero passage, send inversion by inverse changing driving circuit and drive cut-off signals Ug2=0, VT2 is turn-offed, and VT1 continues to turn-off simultaneously, enters Dead Time; A work period of t1-t5 stage finishes.
The present invention adopts conventional electronic switching device can realize radio energy charging, greatly reduces the impact of Electromagnetic Radiation on Environment simultaneously.Adopt semi-bridge inversion and the control of PWM pulsewidth power, simplify circuit structure.
Claims (10)
1. an electric bicycle magnet coupled resonant type wireless charger, is characterized in that: comprise main circuit part and control circuit part;
Main circuit part comprises full-bridge rectification filter circuit, half-bridge inversion circuit, transmitting terminal series resonant circuit, receiving terminal series resonant circuit, high frequency transformer T1, rectifier filter circuit;
Control circuit part comprises receiving-end voltage current detection circuit, receiving terminal charging data transmit circuit, transmitting terminal receive data by wireless circuit, transmitting terminal current detection circuit, phase-locked loop frequency tracking circuit, PWM inverter control circuit, inverse changing driving circuit;
Input ac voltage converts galvanic current to through full-bridge rectification filter circuit and presses Ud1, and through half-bridge inversion circuit output high-frequency ac voltage U1, in transmitting terminal series resonant circuit, producing resonance potential and resonance current is launching circuit resonance current i1; The resonance frequency of receiving terminal series resonant circuit and transmitting terminal series resonant circuit equates, produce receiving loop output voltage U 2 by electromagnetic coupled resonance, receiving loop output voltage U 2 is transformed into and exports through high frequency transformer T1 the high frequency voltage that charging voltage Uo is corresponding, carry out rectification and filtering through rectifier filter circuit, output charging voltage Uo;
Receiving-end voltage current detection circuit detects charging voltage and the charging current of receiving terminal output, and charging voltage and charging current data are through receiving terminal charging data transmit circuit wireless transmission subsequently; Transmitting terminal receive data by wireless circuit receives and sends the charging voltage receiving and charging current data to PWM inverter control circuit; Launching circuit resonance current, by after transmitting terminal current detection circuit acquisition testing, produces frequency-tracking signal through phase-locked loop frequency tracking circuit, gives PWM inverter control circuit; PWM inverter control circuit is according to charging voltage set-point, charging voltage and charging current detected value and the frequency-tracking signal set, produce the PWM pulse-width modulation control signal of respective frequencies and pulse duration, isolate and power amplification through inverse changing driving circuit, output driving pulse Ug1 and Ug2, control the switching tube in half-bridge inversion circuit.
2. electric bicycle magnet coupled resonant type wireless charger as claimed in claim 1, is characterized in that:
Described full-bridge rectification filter circuit comprises diode D1～D4 and filter capacitor Cd1, and diode D1～D4 forms an input full bridge rectifier, and filter capacitor Cd1 is connected in parallel on two outputs of input full bridge rectifier;
Described half-bridge inversion circuit comprises MOS switching tube VT1, VT2 and anti-paralleled diode VD1, VD2; Described transmitting terminal series resonant circuit comprises resonant capacitance C1 and the transmitting coil L1 of series connection; The grid of switching tube VT1, VT2 meets respectively driving pulse Ug1 and Ug2, and the drain electrode of switching tube VT1 connects the positive output end of input full bridge rectifier, and source electrode connects the drain electrode of switching tube VT2, and the source electrode of switching tube VT2 connects the negative output terminal of input full bridge rectifier; The negative electrode of diode VD1 and anode connect respectively drain electrode and the source electrode of switching tube VT1; The negative electrode of diode VD2 and anode connect respectively drain electrode and the source electrode of switching tube VT2;
The drain node that is connected of switching tube VT1 source electrode and switching tube VT2 connects one end of transmitting terminal series resonant circuit, the negative output terminal of another termination input full bridge rectifier of transmitting terminal series resonant circuit.
3. electric bicycle magnet coupled resonant type wireless charger as claimed in claim 2, is characterized in that:
Described receiving terminal series resonant circuit comprises resonant capacitance C2 and the receiving coil L2 of series connection; The two ends of series resonant circuit are connected with the elementary two ends of high frequency transformer T1 respectively;
The value of resonant capacitance C1 and transmitting coil L1, and the value of resonant capacitance C2 and receiving coil L2 equates the resonance frequency of receiving terminal series resonant circuit and transmitting terminal series resonant circuit, and resonance frequency is less than 200KHz.
4. electric bicycle magnet coupled resonant type wireless charger as claimed in claim 3, it is characterized in that: described rectifier filter circuit comprises diode Dr1～Dr4 and filter capacitor Cd2, diode Dr1～Dr4 composition high frequency full bridge rectifier, the secondary two ends of the input termination high frequency transformer T1 of this high frequency full bridge rectifier, filter capacitor Cd2 is connected in parallel on two outputs of this high frequency full bridge rectifier.
5. electric bicycle magnet coupled resonant type wireless charger as claimed in claim 4, is characterized in that:
Described receiving-end voltage current detection circuit, comprises direct current voltage sensor V2 and DC current sensor A2, for detection of output charging voltage and charging current; Direct current voltage sensor V2 is connected in parallel on two outputs of high frequency full bridge rectifier, and DC current sensor A2 is arranged on an output of high frequency full bridge rectifier.
6. electric bicycle magnet coupled resonant type wireless charger as claimed in claim 5, is characterized in that:
Described receiving terminal charging data transmit circuit is for sending to transmitting terminal receive data by wireless circuit by charging voltage and charging current data wireless; Transmitting terminal receive data by wireless circuit is used for receiving charging voltage and charging current data and sends PWM inverter control circuit to.
7. electric bicycle magnet coupled resonant type wireless charger as claimed in claim 6, is characterized in that:
Described transmitting terminal current detection circuit comprises current sensor A1, is launching circuit resonance current i1 for detection of the electric current of transmitting terminal series resonant circuit.
8. electric bicycle magnet coupled resonant type wireless charger as claimed in claim 7, is characterized in that:
Described phase-locked loop frequency tracking circuit, for making launching circuit resonance current i1 follow the tracks of launching circuit resonance potential, keeps phase angle of launching circuit resonance current i1 hysteresis launching circuit resonance potential.
9. electric bicycle magnet coupled resonant type wireless charger as claimed in claim 8, is characterized in that:
Described PWM inverter control circuit, for according to charging voltage set-point, charging voltage and charging current detected value and the frequency-tracking signal set, produces the PWM pulse-width modulation control signal of respective frequencies and pulse duration, offers inverse changing driving circuit;
Described inverse changing driving circuit for PWM pulse-width modulation control signal is isolated, voltage and current amplifies, and drives switching tube VT1 and VT2 in half-bridge inversion circuit.
10. the electric bicycle magnet coupled resonant type wireless charger as described in any one in claim 1～9, is characterized in that:
A work period of main circuit when PWM control impuls width adjusting is as follows:
T1-t2, the t1 moment, phase-locked loop frequency tracking circuit detects launching circuit resonance current i1 zero crossing, PWM inverter control circuit, according to i1 crossover point signal, sends inversion by inverse changing driving circuit and drives signal Ug1=high level, makes VT1 conducting, VT2 continues to turn-off, half-bridge inversion circuit output voltage U 1 is for just, and its amplitude is Ud1, and launching circuit resonance current i1 rises; Receiving loop output voltage U 2 and receiving loop resonance current i2 follow U1 and i1 changes;
T2-t3, in the t2 moment, PWM inverter control circuit is according to charging voltage set-point Vg and charging voltage detected value Vo comparison, in the time of Vg=Vo, send inversion by inverse changing driving circuit and drive cut-off signals Ug1=0, VT1 is turn-offed, VT2 continues to turn-off simultaneously, enters Dead Time;
T3-t4, in the t3 moment, Dead Time finishes, PWM inverter control circuit sends inversion by inverse changing driving circuit and drives signal Ug2=high level, makes VT2 conducting, and VT1 continues to turn-off, half-bridge inversion circuit enters inner loop stream mode, U1=0, and launching circuit resonance current i1 declines; Dropped to before zero at i1, the first conducting of anti-paralleled diode VD2 of VT2, drops to after zero VT2 conducting at i1; Receiving loop output voltage U 2 and receiving loop resonance current i2 follow U1 and i1 changes;
T4-t5, the t4 moment, phase-locked loop frequency tracking circuit detects that launching circuit resonance current i1 gets back to before zero crossing, PWM inverter control circuit is according to the current signal before i1 zero passage, send inversion by inverse changing driving circuit and drive cut-off signals Ug2=0, VT2 is turn-offed, and VT1 continues to turn-off simultaneously, enters Dead Time; A work period of t1-t5 stage finishes.
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| CN113300428A (en) * | 2021-05-17 | 2021-08-24 | 上海擎朗智能科技有限公司 | Charging circuit, charging device, charging method, charging system, and robot |
| CN113675956A (en) * | 2021-07-28 | 2021-11-19 | 广东工业大学 | Staggered anti-deviation constant-voltage resonant wireless power transmission system |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005045918A (en) * | 2003-07-22 | 2005-02-17 | Sony Corp | Switching power source circuit |
| CN202231500U (en) * | 2011-08-24 | 2012-05-23 | 福州大学 | Non-contact charger capable of automatic tracking of resonant frequency of switch power circuit |
| CN102593957A (en) * | 2011-01-18 | 2012-07-18 | 深圳市博巨兴实业发展有限公司 | Wireless charging emitting end, wireless charging receiving end and wireless charging device |
| CN202370858U (en) * | 2011-11-28 | 2012-08-08 | 上海沪石石油机械有限公司 | Peripheral pump with built-in motor |
| CN103312016A (en) * | 2013-05-23 | 2013-09-18 | 东南大学 | Storage battery wireless charging minimum connecting device |
-
2014
- 2014-01-03 CN CN201410002988.5A patent/CN103779951B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005045918A (en) * | 2003-07-22 | 2005-02-17 | Sony Corp | Switching power source circuit |
| CN102593957A (en) * | 2011-01-18 | 2012-07-18 | 深圳市博巨兴实业发展有限公司 | Wireless charging emitting end, wireless charging receiving end and wireless charging device |
| CN202231500U (en) * | 2011-08-24 | 2012-05-23 | 福州大学 | Non-contact charger capable of automatic tracking of resonant frequency of switch power circuit |
| CN202370858U (en) * | 2011-11-28 | 2012-08-08 | 上海沪石石油机械有限公司 | Peripheral pump with built-in motor |
| CN103312016A (en) * | 2013-05-23 | 2013-09-18 | 东南大学 | Storage battery wireless charging minimum connecting device |
Non-Patent Citations (1)
| Title |
|---|
| 陆洪伟: "一种谐振式强磁耦合型无线充电系统的研究", 《中国优秀硕士学位论文全文数据库》, 15 July 2012 (2012-07-15) * |
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