CN202872643U - Electric automobile vehicular charger and resonance circuit device - Google Patents
Electric automobile vehicular charger and resonance circuit device Download PDFInfo
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- CN202872643U CN202872643U CN201220541865.5U CN201220541865U CN202872643U CN 202872643 U CN202872643 U CN 202872643U CN 201220541865 U CN201220541865 U CN 201220541865U CN 202872643 U CN202872643 U CN 202872643U
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Abstract
The utility model provides an electric automobile vehicular charger and a resonance circuit device. The charger comprises a power factor correction circuit unit, the resonance circuit device and a CPLD (Complex Programmable Logic Device) control circuit unit. The power factor correction circuit unit is electrically connected with the resonance circuit device. The CPLD control circuit unit is electrically connected with the resonance circuit device. An alternating current is input to the power factor correction circuit unit and then converted by the power factor circuit with no staggered bridges into a direct current which further enters the resonance circuit device. Controlled by the CPLD control circuit unit, the direct current entering the resonance circuit device undergoes DC-DC conversion and is then output as a direct current to a rechargeable battery for a charging purpose. The charger can reliably adjust the LLC resonant frequency with high efficiency according to power supply load changes.
Description
Technical field
The utility model relates to the vehicle-mounted charger equipment manufacturing technology of a kind of electric automobile field, particularly a kind of reliable efficiently the vehicle-mounted charger of electric automobile and resonant circuit device.
Background technology
Along with the development of modern power electronics technology, Switching Power Supply is towards high frequency, integrated, modularization future development.Improve switching frequency and can reduce volume, improve power density and reliability, the waveform of smooth change and less voltage, current changing rate also are conducive to improve the Electro Magnetic Compatibility of system, reduce switching noise.Power resonant converter is take resonant circuit as basic converter unit, the zero passage of electric current or voltage cycle when utilizing resonance, thus make switching device under zero voltage condition, open or turn-off, reach the purpose that reduces switching loss, further raise the efficiency, therefore obtained paying attention to and research.
(L of LLC herein represents inductance Inductance to domestic common vehicle LLC at present, C represents capacitor C apacitance, LLC is the topological structure of a kind of inductance, inductance and electric capacity) the resonant type DC-DC power supply is to adjust output voltage and electric current with the method for adjusting LLC resonant circuit frequency of oscillation off-resonance point under the prerequisite of fixing 50% duty ratio, it can't change according to power source loads adjusts the LLC resonance frequency, and efficient is lower.
The utility model content
The purpose of this utility model is to provide the vehicle-mounted charger of a kind of electric automobile and resonant circuit device, and it can change according to power source loads adjusts the LLC resonance frequency efficiently, reliably.
The vehicle-mounted charger of a kind of electric automobile for realizing that the utility model purpose provides comprises the circuit of power factor correction unit, also comprises resonant circuit device and CPLD control circuit unit, wherein:
Circuit of power factor correction unit and resonant circuit device are electrically connected;
CPLD control circuit unit is electrically connected to resonant circuit device;
Alternating current is input to the circuit of power factor correction unit, through changing direct current output into without the staggered power factor circuit of bridge, enters into resonant circuit device;
Under the control of CPLD control circuit unit, enter into the direct current of resonant circuit device, do direct current output after the DC-DC conversion, export to the rechargeable battery charging.
For realizing the purpose of this utility model, a kind of resonant circuit device also is provided, comprise LLC circuit subelement, rectifier, filter;
Described LLC circuit subelement comprises the switching tube subelement, inductance L 100, capacitor C 103 and transformer TF100;
Described switching tube subelement comprises two groups of MOSFET pipes that T100, T101, four MOSFET pipes of T102, T103 form, and under the control of CPLD control circuit unit, alternation becomes alternating current to the direct current of input; The two ends that the inductance L 100 of mutually connecting and capacitor C 103 are connected to two groups of MOSFET pipes carry out exporting to described transformer TF100 after the frequency translation; Transformer TF100 outputs to rectifier after alternating current is carried out transformation;
Described rectifier is comprised of four diode D100, D101, D102, D103, and the alternating current after the transformation of transformer TF100 output is carried out rectification, exports to filter;
The pi type filter that described filter is comprised of capacitor C 104, inductance L 1, capacitor C 54, the direct current that rectifier is exported carries out exporting charging after the filtering.
More preferably, but as a kind of embodiment, the switching frequency of described switching tube is 60K-200KHz.
The beneficial effects of the utility model are: the vehicle-mounted charger of electric automobile of the present utility model and resonant circuit device, change the resonant circuit device of resonance frequency by CPLD (CPLD), can change according to power source loads and adjust efficiently, reliably the LLC resonance frequency, the efficient of Vehicular charger resonant circuit is reached more than 97%, the circuit arrangement of this charger series resonance of while is compact conformation not only, and can effectively reduce electromagnetic interference.
Description of drawings
Fig. 1 is this practical new Vehicular charger entire block diagram;
Fig. 2 is the utility model Vehicular charger partial circuit figure;
Fig. 3 is this practical new Vehicular charger resonant circuit device circuit diagram;
Fig. 4 is this practical new Vehicular charger resonant circuit device course of work schematic diagram;
Fig. 5 a, 5b are this practical new Vehicular charger resonance fundamental diagram;
Fig. 6 is this practical new Vehicular charger CPLD control circuit unit controls flow chart;
This practical new Vehicular charger efficient schematic diagram of Fig. 7.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the vehicle-mounted charger of electric automobile of the present utility model and resonant circuit device are further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
As shown in Figure 1, the vehicle-mounted charger of electric automobile of the present utility model is by the resonant circuit device of the changed resonance frequency of CPLD (Complex ProgrammableLogic Device, CPLD) control, charges.
The block diagram of the vehicle-mounted charger of the utility model electric automobile as shown in Figure 1, comprises circuit of power factor correction unit (PFC) 1, resonant circuit device 2, and CPLD control circuit unit 3;
Fig. 2 is Vehicular charger partial circuit figure of the present utility model, comprises power factor correction circuit unit 1, resonant circuit device 2;
Circuit of power factor correction unit 1 and resonant circuit device 2 are electrically connected;
Alternating current is input to circuit of power factor correction unit 1, through changing direct current output into without the staggered power factor circuit of bridge, enters into resonant circuit device 2;
Under the control of CPLD control circuit unit 3, enter into the direct current of resonant circuit device 2, do direct current output after the DC-DC conversion, export to the rechargeable battery charging;
CPLD control circuit unit 3 is electrically connected to resonant circuit device 2, utilizes the proportional-integral-differential of deviation, and namely PID (Proportional Integral Derivative) algorithm is to resonant circuit device 2 circulation adjustings.
Vehicular charger of the present utility model according to the characteristic of resonant circuit device, utilizes the shutoff of opening of CPLD control circuit unit controls switching tube, reaches safely and efficiently control switch pipe, and the inductance of transformer is fully discharged, and can guarantee switching tube work again.
The below describes resonant circuit device 2 of the present utility model in detail.
Described LLC circuit subelement comprises the switching tube subelement, inductance L 100, capacitor C 103 and transformer TF100;
Described switching tube subelement comprises two groups of MOSFET pipes that T100, T101, four MOSFET pipes of T102, T103 form, and under the control of CPLD control circuit unit, alternation becomes alternating current to the direct current of input; The two ends that the inductance L 100 of mutually connecting and capacitor C 103 are connected to two groups of MOSFET pipes carry out exporting to described transformer TF100 after the frequency translation; Transformer TF100 outputs to rectifier after alternating current is carried out transformation;
Described rectifier is comprised of four diode D100, D101, D102, D103, and the alternating current after the transformation of transformer TF100 output is carried out rectification, exports to filter;
The pi type filter that described filter is comprised of capacitor C 104, inductance L 1, capacitor C 54, the direct current that rectifier is exported carries out exporting charging after the filtering.
Resonant circuit device of the present utility model adopts inductance L 100 and capacitor C 103 series resonances, can either satisfy the requirement of high frequency, can obtain higher conversion efficiency again.
As shown in Figure 4, the DC voltage/current of circuit of power factor correction (PFC) unit output, become alternating current through the switching tube subelement in the resonant circuit device, this alternating current is through the operating frequency conversion and carry out pressure regulation, through rectifier, filter circuit alternating voltage or electric current are become level and smooth direct voltage or electric current again, with galvanic formal output.
The utility model resonant circuit device utilizes the two groups of MOSFET pipes alternation in the switching tube subelement of CPLD control circuit unit controls, thereby adjusts institute's output dc voltage.
Preferably, as a kind of embodiment, the switching frequency of described switching tube is 60K-200KHz.
Resonant circuit device of the present utility model, under the control of CPLD control circuit unit, output dc voltage is adjustable, the conversion of DC-DC is carried out in the output of resonant circuit device previous stage circuit of power factor correction unit, makes actual voltage or the electric current that outputs to rechargeable battery equal the needed charging voltage of rechargeable battery or electric current.
The below describes the process of CPLD control circuit of the present utility model unit 3 control resonant circuit devices 2 in detail.
CPLD control circuit unit is connected electrically in the gate pole of the MOSFET pipe in the resonant circuit device, simultaneously conducting of CPLD control circuit unit controls switch transistor T 101 and T102 and closing, when switch transistor T 101 and T102 conducting, shown in Fig. 5 a, the flow direction of voltage or electric current is from inductance L 100, arrives transformer TF100 through capacitor C 103.Open T100 and T103 after time in one " dead band " that switch transistor T 101 and T102 close, CPLD control circuit unit controls T100 and T103 open simultaneously and close, when switch transistor T 100 and T103 conducting, shown in Fig. 5 b, voltage or electric current arrive inductance L 100 from transformer TF100 through capacitor C 103 at this moment.
TRR reverse recovery time of the switching tube that the set basis of " dead band " time is selected (Reverse RecoveryTime) and setting.
As a kind of embodiment, the resonant circuit device of the utility model Vehicular charger is controlled by CPLD control circuit unit, ratio, integration, differential in deviation are controlled, namely be that PID (Proportional IntegralDerivative) loops adjusting, control flow is as shown in Figure 6: according to the reference value of the battery input direct-current output of required charging, whether the real output value of judging this resonant circuit device equals reference value, if real output value equals set reference value, then directly export to rechargeable battery; Enter PID if real output value is not equal to the reference value of setting and regulate, and then real output value and reference value are compared, Here it is, and the PID circulation is regulated, until the value of actual output equals reference value.
The utility model is by the alternation of two groups of MOSFET pipes, the switching frequency of switching tube is 60K-200KHz, the frequency of control switch effectively, set suitable Dead Time, reach safely and efficiently control switch pipe, the inductance of transformer is fully discharged, can guarantee switching tube work again, Dead Time is with the reverse recovery time of switching tube, so that the efficient of full-bridge resonance reaches more than 97%, as shown in Figure 7.
Should be noted that at last that obviously those skilled in the art can carry out various changes and modification to the utility model and not break away from spirit and scope of the present utility model.Like this, if of the present utility model these revise and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification.
Claims (5)
1. the vehicle-mounted charger of electric automobile comprises the circuit of power factor correction unit, it is characterized in that, also comprises resonant circuit device and CPLD control circuit unit, wherein:
Circuit of power factor correction unit and resonant circuit device are electrically connected;
CPLD control circuit unit is electrically connected to resonant circuit device;
Alternating current is input to the circuit of power factor correction unit, through changing direct current output into without the staggered power factor circuit of bridge, enters into resonant circuit device;
Under the control of CPLD control circuit unit, enter into the direct current of resonant circuit device, do direct current output after the DC-DC conversion, export to the rechargeable battery charging.
2. the vehicle-mounted charger of electric automobile according to claim 1 is characterized in that, described resonant circuit device comprises LLC circuit subelement, rectifier, filter;
Described LLC circuit subelement comprises the switching tube subelement, inductance L 100, capacitor C 103 and transformer TF100;
Described switching tube subelement comprises two groups of MOSFET pipes that T100, T101, four MOSFET pipes of T102, T103 form, and under the control of CPLD control circuit unit, alternation becomes alternating current to the direct current of input; The two ends that the inductance L 100 of mutually connecting and capacitor C 103 are connected to two groups of MOSFET pipes carry out exporting to described transformer TF100 after the frequency translation; Transformer TF100 outputs to rectifier after alternating current is carried out transformation;
Described rectifier is comprised of four diode D100, D101, D102, D103, and the alternating current after the transformation of transformer TF100 output is carried out rectification, exports to filter;
The pi type filter that described filter is comprised of capacitor C 104, inductance L 1, capacitor C 54, the direct current that rectifier is exported carries out exporting charging after the filtering.
3. the vehicle-mounted charger of electric automobile according to claim 2 is characterized in that, the switching frequency of described switching tube is 60K-200KHz.
4. a resonant circuit device is characterized in that, comprises LLC circuit subelement, rectifier, filter;
Described LLC circuit subelement comprises the switching tube subelement, inductance L 100, capacitor C 103 and transformer TF100;
Described switching tube subelement comprises two groups of MOSFET pipes that T100, T101, four MOSFET pipes of T102, T103 form, and under the control of CPLD control circuit unit, alternation becomes alternating current to the direct current of input; The two ends that the inductance L 100 of mutually connecting and capacitor C 103 are connected to two groups of MOSFET pipes carry out exporting to described transformer TF100 after the frequency translation; Transformer TF100 outputs to rectifier after alternating current is carried out transformation;
Described rectifier is comprised of four diode D100, D101, D102, D103, and the alternating current after the transformation of transformer TF100 output is carried out rectification, exports to filter;
The pi type filter that described filter is comprised of capacitor C 104, inductance L 1, capacitor C 54, the direct current that rectifier is exported carries out exporting charging after the filtering.
5. resonant circuit device according to claim 4 is characterized in that, the switching frequency of described switching tube is 60K-200KHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220541865.5U CN202872643U (en) | 2012-10-22 | 2012-10-22 | Electric automobile vehicular charger and resonance circuit device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220541865.5U CN202872643U (en) | 2012-10-22 | 2012-10-22 | Electric automobile vehicular charger and resonance circuit device |
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| Publication Number | Publication Date |
|---|---|
| CN202872643U true CN202872643U (en) | 2013-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220541865.5U Expired - Fee Related CN202872643U (en) | 2012-10-22 | 2012-10-22 | Electric automobile vehicular charger and resonance circuit device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825475A (en) * | 2013-09-27 | 2014-05-28 | 苏州舜唐新能源电控设备有限公司 | Circuit and control method for improving vehicle-mounted charger power factor |
| WO2020017091A1 (en) * | 2018-07-19 | 2020-01-23 | オムロン株式会社 | Power conversion device |
| CN111371160A (en) * | 2018-12-25 | 2020-07-03 | 比亚迪股份有限公司 | Electric automobile, vehicle-mounted integrated device thereof and control method of vehicle-mounted integrated device |
| CN113972720A (en) * | 2021-10-29 | 2022-01-25 | 哈尔滨理工大学 | Direct current input type electric automobile charging system |
| WO2022246615A1 (en) * | 2021-05-24 | 2022-12-01 | 深圳欣锐科技股份有限公司 | Charger circuit |
-
2012
- 2012-10-22 CN CN201220541865.5U patent/CN202872643U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103825475A (en) * | 2013-09-27 | 2014-05-28 | 苏州舜唐新能源电控设备有限公司 | Circuit and control method for improving vehicle-mounted charger power factor |
| WO2020017091A1 (en) * | 2018-07-19 | 2020-01-23 | オムロン株式会社 | Power conversion device |
| JP2020014349A (en) * | 2018-07-19 | 2020-01-23 | オムロン株式会社 | Power converter |
| US11606021B2 (en) | 2018-07-19 | 2023-03-14 | Omron Corporation | Power converter apparatus provided with low-pass filter circuit for reducing switching frequency components |
| CN111371160A (en) * | 2018-12-25 | 2020-07-03 | 比亚迪股份有限公司 | Electric automobile, vehicle-mounted integrated device thereof and control method of vehicle-mounted integrated device |
| CN111371160B (en) * | 2018-12-25 | 2022-05-13 | 比亚迪股份有限公司 | Electric automobile, vehicle-mounted integrated device thereof and control method of vehicle-mounted integrated device |
| WO2022246615A1 (en) * | 2021-05-24 | 2022-12-01 | 深圳欣锐科技股份有限公司 | Charger circuit |
| CN113972720A (en) * | 2021-10-29 | 2022-01-25 | 哈尔滨理工大学 | Direct current input type electric automobile charging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANJING SHUNTANG EMBEDDED SYSTEM CO., LTD. Free format text: FORMER OWNER: G-POWER EQUIPMENT COMPANY LIMITED Effective date: 20140529 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215000 SUZHOU, JIANGSU PROVINCE TO: 210000 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140529 Address after: Guanghua Road, Baixia District Nanjing city Jiangsu province 210000 No. 1 Polytechnic University Science and Technology Park building A room 007 Patentee after: SHUNTANG EMBEDDED SYSTEM Co.,Ltd. Address before: 215000 Jiangsu city of Suzhou province Wujiang City Road No. 888 South Pang Patentee before: G-POWER EQUIPMENT CO.,LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20211022 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |