CN106887863A - A kind of electric automobile wireless feedback non-contact charge circuit - Google Patents
A kind of electric automobile wireless feedback non-contact charge circuit Download PDFInfo
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- CN106887863A CN106887863A CN201510914998.0A CN201510914998A CN106887863A CN 106887863 A CN106887863 A CN 106887863A CN 201510914998 A CN201510914998 A CN 201510914998A CN 106887863 A CN106887863 A CN 106887863A
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- circuit
- electric automobile
- wireless feedback
- contact charge
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Electric Propulsion And Braking For Vehicles (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a kind of electric automobile wireless feedback non-contact charge circuit, including non-contact power circuit and wireless feedback circuit two parts.Non-contact power circuit includes primary circuit and secondary circuit：Wireless feedback circuit includes detection and radiating circuit and reception and feedback triggers circuit, can simultaneously realize Based Intelligent Control and voltage stabilizing function.Circuit can adjust non-contact power circuit H bridge dutycycles on the premise of the coefficient of coup is not changed, and circuit working stability, power consumption is relatively low, strong adaptability.
Description
Technical field
The present invention relates to a kind of electric automobile wireless feedback non-contact charge circuit, it is adaptable to field of charging.
Background technology
Non-contact charger systems (the InductivelyCoupled that electric automobile is used
Power Transfer, abbreviation ICPT), primary coil is transmitted electric energy to secondary coil with way of electromagnetic induction.Secondary coil is arranged on automobile chassis, primary coil is arranged on the subsurface on parking stall, when electric automobile is accommodated on the power coil device of fixed parking stall, electricity reception coil is acceptable electric energy, and battery is charged.General electric automobile can complete to charge in 3~6 h.Compared with wired charging modes, non-contact charger systems have intellectuality of charging, and it is live to be charged without staff on duty;Charge and do not receive weather, the advantage of ambient influnence.But the non-contact charger systems coefficient of coup is relatively low, generally between 0.13~0.2, the voltage pulsation for loading two ends is larger.Therefore a kind of non-contact power circuit for having a wireless feedback regulation function is designed, on the premise of the coefficient of coup is not changed, non-contact power circuit H bridge dutycycles is adjusted, changes the power output of primary circuit, the purpose for reaching regulated output voltage is also critically important.
The content of the invention
The present invention provides a kind of electric automobile wireless feedback non-contact charge circuit, and circuit can adjust non-contact power circuit H bridge dutycycles on the premise of the coefficient of coup is not changed, and circuit working stability, power consumption is relatively low, strong adaptability.
The technical solution adopted in the present invention is：
Electric automobile wireless feedback non-contact charge circuit non-contact power circuit and wireless feedback circuit two parts.Non-contact power circuit includes primary circuit and secondary circuit：Wireless feedback circuit includes detection and radiating circuit and reception and feedback triggers circuit, can simultaneously realize Based Intelligent Control and voltage stabilizing function.
In the non-contact power circuit, primary circuit constitutes full-bridge converter circuit by power switch pipe VS1~VS4, control pulse is produced using pwm chip SG3525 control push-pull circuits, VS1 is alternately controlled respectively, VS4 and VS2, the grid of VS3, makes L11 two ends produce alternating current, and frequency setting is 30kHz.L11, L12 constitute noncontact coupled inverters.C1, C4 for just,
The compensating electric capacity of secondary coil, primary source, primary converter and primary coil L31 are arranged on subsurface；Secondary coil L12, secondary converter are arranged in automobile chassis.Electrical isolation between primary and secondary.VD1, VD2 and C2, C3 constitute two voltage doubling rectifying circuit, through L2, powering load after C5 filtering.
The wireless signal transmission circuit is made up of wireless transmitter module NRF24E1 and peripheral circuit containing single-chip microcomputer.R1, R2 constitute resistor voltage divider circuit, and the sampling voltage signal at R2 two ends sends into the analog input end AIO of NRF24E1, and this port has A/D translation functions, and the digital signal transmission that will be converted to is to receiving circuit.When load voltage is set in 24V, by accurate selection R1, R2 ratios, it is 1V to set sampling voltage signal amplitude.
After the wireless signal receiving circuit receives data signal, then D/A serial conversions are realized with chip TLC5615, data signal conversion is for about the analog signal of 1v, and exported by the 7th pin.This analog voltage signal is delivered to 1 pin (inverting input of error amplifier) of SG3525.16 pin of SG3525 are 5.1V reference voltages, through the accurate partial pressure of resistance, 2 pin (in-phase input end) of SG3525 is obtained the 1V voltage signals of standard.SG3525 changes the dutycycle of the output pulse of 11,14 pin automatically by the real-time difference for comparing 1,2 pin voltage signals, controls VS1~VS4, changes its dutycycle, so as to adjust the power for being delivered to secondary circuit, plays the purpose of voltage stabilizing.
The circuit also has intelligent decision and automatically processes function：When automobile is not or not parking stall, signal receiving circuit can not receive signal, and non-contact power primary circuit is automatically switched off, and plays energy-conserving action：By the level of charge of the detection automatic decision battery to load voltage, automatically switch to floating charge and stop the state of filling.
The beneficial effects of the invention are as follows：Circuit can adjust non-contact power circuit H bridge dutycycles on the premise of the coefficient of coup is not changed, and circuit working stability, power consumption is relatively low, strong adaptability.
Brief description of the drawings
The present invention is further described with reference to the accompanying drawings and examples.
Fig. 1 is non-contact power circuit of the invention.
Fig. 2 is wireless signal transmission circuit of the invention.
Fig. 3 is wireless signal receiving circuit of the invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples.
Such as Fig. 1, in non-contact power circuit, primary circuit constitutes full-bridge converter circuit by power switch pipe VS1~VS4, control pulse is produced using pwm chip SG3525 control push-pull circuits, VS1, VS4 and VS2, the grid of VS3 are alternately controlled respectively, L11 two ends are made to produce alternating current, frequency setting is 30kHz.L11, L12 constitute noncontact coupled inverters.C1, C4 for just,
The compensating electric capacity of secondary coil, primary source, primary converter and primary coil L31 are arranged on subsurface；Secondary coil L12, secondary converter are arranged in automobile chassis.Electrical isolation between primary and secondary.VD1, VD2 and C2, C3 constitute two voltage doubling rectifying circuit, through L2, powering load after C5 filtering.
Such as Fig. 2, wireless signal transmission circuit is made up of wireless transmitter module NRF24E1 and peripheral circuit containing single-chip microcomputer.R1, R2 constitute resistor voltage divider circuit, and the sampling voltage signal at R2 two ends sends into the analog input end AIO of NRF24E1, and this port has A/D translation functions, and the digital signal transmission that will be converted to is to receiving circuit.When load voltage is set in 24V, by accurate selection R1, R2 ratios, it is 1V to set sampling voltage signal amplitude.
Such as Fig. 3, after wireless signal receiving circuit receives data signal, then D/A serial conversions are realized with chip TLC5615, data signal conversion is for about the analog signal of 1V, and exported by the 7th pin.This analog voltage signal is delivered to 1 pin (inverting input of error amplifier) of SG3525.16 pin of SG3525 are 5.1V reference voltages, through the accurate partial pressure of resistance, 2 pin (in-phase input end) of SG3525 is obtained the 1V voltage signals of standard.SG3525 changes the dutycycle of the output pulse of 11,14 pin automatically by the real-time difference for comparing 1,2 pin voltage signals, controls VS1~VS4, changes its dutycycle, so as to adjust the power for being delivered to secondary circuit, plays the purpose of voltage stabilizing.
Claims (8)
1. a kind of electric automobile wireless feedback non-contact charge circuit, it is characterized in that：Described non-contact charge circuit includes non-contact power circuit and wireless feedback circuit two parts.
2. a kind of electric automobile wireless feedback non-contact charge circuit according to claim 1, it is characterized in that：In the non-contact power circuit, primary circuit constitutes full-bridge converter circuit by power switch pipe VS1~VS4, and control pulse is produced using pwm chip SG3525 control push-pull circuits.
3. a kind of electric automobile wireless feedback non-contact charge circuit according to claim 1, it is characterized in that：In described non-contact power circuit, L11, L12 composition noncontact coupled inverters;C1, C4 are the compensating electric capacity of primary and secondary coil, and primary source, primary converter and primary coil L31 are arranged on subsurface.
4. a kind of electric automobile wireless feedback non-contact charge circuit according to claim 1, it is characterized in that：In described non-contact power circuit, VD1, VD2 and C2, C3 constitute two voltage doubling rectifying circuit, through L2, powering load after C5 filtering.
5. a kind of electric automobile wireless feedback non-contact charge circuit according to claim 1, it is characterized in that：The wireless signal transmission circuit is made up of wireless transmitter module NRF24E1 and peripheral circuit containing single-chip microcomputer.
6. a kind of electric automobile wireless feedback non-contact charge circuit according to claim 1, it is characterized in that：In the wireless signal transmission circuit, R1, R2 constitutes resistor voltage divider circuit, and the sampling voltage signal at R2 two ends sends into the analog input end AIO of NRF24E1.
7. a kind of electric automobile wireless feedback non-contact charge circuit according to claim 1, it is characterized in that：The wireless feedback circuit includes detection and radiating circuit and reception and feedback triggers circuit, can simultaneously realize Based Intelligent Control and voltage stabilizing function.
8. a kind of electric automobile wireless feedback non-contact charge circuit according to claim 1, it is characterized in that：After the wireless signal receiving circuit receives data signal, then D/A serial conversions are realized with chip TLC5615, data signal conversion is for about the analog signal of 1V, and exported by the 7th pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510914998.0A CN106887863A (en) | 2015-12-14 | 2015-12-14 | A kind of electric automobile wireless feedback non-contact charge circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510914998.0A CN106887863A (en) | 2015-12-14 | 2015-12-14 | A kind of electric automobile wireless feedback non-contact charge circuit |
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| Publication Number | Publication Date |
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| CN106887863A true CN106887863A (en) | 2017-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510914998.0A Pending CN106887863A (en) | 2015-12-14 | 2015-12-14 | A kind of electric automobile wireless feedback non-contact charge circuit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980791A (en) * | 2017-11-29 | 2019-07-05 | Tdk株式会社 | Wireless receiving device and the Wireless power transmission system for using it |
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2015
- 2015-12-14 CN CN201510914998.0A patent/CN106887863A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109980791A (en) * | 2017-11-29 | 2019-07-05 | Tdk株式会社 | Wireless receiving device and the Wireless power transmission system for using it |
| CN109980791B (en) * | 2017-11-29 | 2024-01-16 | Tdk株式会社 | Wireless power receiving device and wireless power transmission system using same |
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170623 |