CN203951381U - Vehicle-mounted inversion system - Google Patents
Vehicle-mounted inversion system Download PDFInfo
- Publication number
- CN203951381U CN203951381U CN201420255987.7U CN201420255987U CN203951381U CN 203951381 U CN203951381 U CN 203951381U CN 201420255987 U CN201420255987 U CN 201420255987U CN 203951381 U CN203951381 U CN 203951381U
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- circuit
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- booster circuit
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- vehicle
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- 238000001914 filtration Methods 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 230000009466 transformation Effects 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Abstract
The utility model discloses a kind of vehicle-mounted inversion system, the DC filtering circuit that comprises the first voltage detecting circuit, controller and be linked in sequence, Boost booster circuit, DC/DC booster circuit, DC/AC inverter circuit and ac filter circuit.The first voltage detecting circuit is for detection of the output voltage of input voltage, output voltage or the Boost booster circuit of DC filtering circuit.First, second, and third control output end of controller is connected with DC/DC booster circuit, DC/AC inverter circuit and the control end of Boost booster circuit respectively.When the voltage detecting at the first voltage detecting circuit is more than or equal to the first default detection voltage threshold, Boost booster circuit does not carry out voltage transformation; When being less than the first detection voltage threshold, Boost booster circuit carries out boosting inverter to the output voltage of DC filtering circuit, after being transformed in predetermined work voltage range, export to DC/DC booster circuit, thereby guarantee that the ac high-voltage after conversion meets the demands.
Description
Technical field
The utility model relates to a kind of vehicle-mounted inversion system.
Background technology
Thereby vehicle-mounted inversion system is a kind ofly automobile power source direct current can be converted to the alternating current identical with civil power for the power supply on vehicle converting system of general electrical equipment.Vehicle-mounted inversion system of the prior art comprises DC power supply, DC filtering circuit, DC/DC booster circuit, DC/AC inverter circuit and the ac filter circuit being linked in sequence and is connected to DC/DC booster circuit and the controller of DC/AC inverter circuit.
In order to guarantee conversion efficiency and stability, DC/DC booster circuit conventionally adopts and recommends booster circuit or the good booster circuit of other stability.But, recommend booster circuit controllability poor (substantially not regulating in practice), in test, when the input voltage of DC/DC booster circuit is positioned at 10.8V～16V, vehicle-mounted inversion system can be changed out the ac high-voltage needing.But, because vehicle power is often unstable, make the input voltage of DC/DC booster circuit sometimes lower than 10.8V, now, vehicle-mounted inversion system will be difficult to provide the ac high-voltage needing.
Therefore,, in view of above problem, be necessary to provide a kind of improved vehicle-mounted inverse transformation system in fact, to address the above problem.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of vehicle-mounted inversion system, it can be in the situation that DC filtering circuit be exported to the low voltage of DC/DC booster circuit, this output voltage is boosted, thereby guarantee that the ac high-voltage after conversion meets the demands.
For achieving the above object, the technical scheme that the utility model adopts is: a kind of vehicle-mounted inversion system, and described vehicle-mounted inversion system comprises DC filtering circuit, DC/DC booster circuit, DC/AC inverter circuit, ac filter circuit and controller; The output of described DC/DC booster circuit is connected with the input of described DC/AC inverter circuit; The output of DC/AC inverter circuit is connected with the input of described ac filter circuit; The first control output end of described controller is connected with the control end of described DC/DC booster circuit, and the second control output end of described controller is connected with the control end of described DC/AC inverter circuit; Its feature is: described vehicle-mounted inversion system also comprises the first voltage detecting circuit and Boost booster circuit; The output of described the first voltage detecting circuit is connected with the first input end of described controller, for detection of the output voltage of the input voltage of DC filtering circuit, the output voltage of DC filtering circuit or described Boost booster circuit; The input of described Boost booster circuit is connected with the output of described DC filtering circuit, the output of this Boost booster circuit is connected with the input of described DC/DC booster circuit, and the control end of this Boost booster circuit is connected with the 3rd control output end of controller.
Compared with prior art, vehicle-mounted inversion system of the present utility model at least has following beneficial effect: because vehicle-mounted inversion system of the present utility model is provided with voltage detecting circuit and Boost booster circuit, at voltage detecting circuit, vehicle power detected when unstable, Boost booster circuit can carry out boosting inverter, within the input voltage of DC/DC booster circuit is adjusted to normal range (NR), thereby the ac high-voltage after this vehicle-mounted inversion system conversion is satisfied the demands.
Accompanying drawing explanation
Fig. 1 is the circuit block diagram of an embodiment of the vehicle-mounted inversion system of the utility model.
Fig. 2 is the circuit theory diagrams of an embodiment of the vehicle-mounted inversion system of the utility model.
| Vehicle-mounted inversion system | 100 | DC power supply | 1 |
| DC filtering circuit | 2 | Boost booster circuit | 3 |
| DC/DC booster circuit | 4 | DC/AC inverter circuit | 5 |
| Ac filter circuit | 6 | Controller | 10 |
| The first voltage detecting circuit | 11 | ? | ? |
Embodiment
Below in conjunction with accompanying drawing, describe the embodiment of the vehicle-mounted inversion system 100 of the utility model in detail.
Refer to Fig. 1.According to the vehicle-mounted inversion system 100 of the utility model embodiment 1, comprise DC power supply 1, DC filtering circuit 2, Boost booster circuit 3, DC/DC booster circuit 4, DC/AC inverter circuit 5, ac filter circuit 6, the first voltage detecting circuit 11 and for controlling the controller 10 of Boost booster circuit 3, DC/DC booster circuit 4 and DC/AC inverter circuit 5.
The output of DC power supply 1 is connected with the input of DC filtering circuit 2, the output of DC filtering circuit 2 is connected with the input of Boost booster circuit 3, the output of Boost booster circuit 3 is connected with the input of DC/DC booster circuit 4, and the output of DC/DC booster circuit 4 is connected with the input of DC/AC inverter circuit 5; The output of DC/AC inverter circuit 5 is connected with the input of ac filter circuit 6, and the output of ac filter circuit 6 is exported required alternating voltage.
The output of the first voltage detecting circuit 11 is connected with the first input end of controller 10, for detection of the input voltage of DC filtering circuit.
The first control output end of controller 10 is connected with the control end of DC/DC booster circuit 4, and the second control output end is connected with the control end of DC/AC inverter circuit 5, and the 3rd control output end is connected with the control end of Boost booster circuit 3.
The work of the voltage control Boost booster circuit 3 that controller 10 detects according to the first voltage detecting circuit 11, wherein: when the voltage detecting at the first voltage detecting circuit 11 is more than or equal to the first default detection voltage threshold, this Boost booster circuit 3 does not carry out voltage transformation, so that the output voltage of DC filtering circuit 2 is directly exported to DC/DC booster circuit 4 without voltage transformation; When the voltage detecting at the first voltage detecting circuit 11 is less than the first default detection voltage threshold, the output voltage that this controller 10 is controlled 3 pairs of DC filtering circuit 2 of Boost booster circuit carries out boosting inverter, after the output voltage of DC filtering circuit 2 is transformed in predetermined operating voltage range, exports to DC/DC booster circuit 4.
The first voltage detecting circuit 11 is comprised of first resistance R 1 of mutually connecting and the second resistance R 2.In Fig. 2, the first voltage detecting circuit 11 is arranged on the input of DC filtering circuit 2, for detection of the input voltage of DC filtering circuit.One end of the first resistance R 1 is connected with the input of DC filtering circuit 2, and the other end is connected with one end of the second resistance R 2, the other end ground connection of the second resistance R 2, and the first resistance R 1 is connected with the first input end of controller 10 with the common contact of the second resistance R 2.This first voltage detecting circuit 11 also can be arranged on the output of DC filtering circuit 2, and in order to detect the output voltage of DC filtering circuit, now one end of the first resistance R 1 is connected with the output of DC filtering circuit; Or the first voltage detecting circuit 11 is arranged on the output of Boost booster circuit 3, in order to detect the output voltage of Boost booster circuit 3, now one end of the first resistance R 1 is connected with the output of Boost booster circuit 3.DC/DC booster circuit 4 is for recommending booster circuit.Boost booster circuit 3 is synchronous rectification Boost booster circuit, and this synchronous rectification Boost booster circuit comprises inductance L
2, nmos switch pipe S
1, synchronous rectification MOSFET pipe S
2and capacitor C
2.Inductance L
2one end be connected with the output of DC filtering circuit 2, the other end and synchronous rectification MOSFET pipe S
2source electrode connect, synchronous rectification MOSFET pipe S
2drain electrode and capacitor C
2one end connect, capacitor C
2other end ground connection.Nmos switch pipe S
1drain electrode be connected in inductance L
1with synchronous rectification MOSFET pipe S
2common contact, source ground.Nmos switch pipe S
1grid and synchronous rectification MOSFET pipe S
2grid be all connected with controller 10.Boost booster circuit 3 also can adopt the Boost booster circuit of asynchronous rectification, now with a rectifier diode, replaces above-mentioned synchronous rectification MOSFET pipe S
2.
Aforesaid predetermined operating voltage range can be for example 10.8V～16V.When the voltage detecting at the first voltage detecting circuit 11 is less than the first default detection voltage threshold, this controller 10 based on the detected voltage of the first voltage detecting circuit 11 to nmos switch pipe S
1export corresponding pwm signal, so that Boost booster circuit 3 can be by the output voltage boosting inverter of DC filtering circuit 2 in 10.8V～16V.
DC/DC booster circuit 4 and DC/AC inverter circuit 5 are controlled by controller 10 and are carried out voltage transitions, and DC/DC booster circuit 4 is for low direct voltage being converted to high direct voltage, and DC/AC inverter circuit 5 converts high direct voltage to ac high-voltage.
Because the vehicle-mounted inversion system of utility model is provided with Boost booster circuit 3, within the input voltage of DC/DC booster circuit can being adjusted to normal range (NR).Therefore, can make the ac high-voltage after conversion satisfy the demands.
Claims (4)
1. a vehicle-mounted inversion system, described vehicle-mounted inversion system comprises DC filtering circuit, DC/DC booster circuit, DC/AC inverter circuit, ac filter circuit and controller; The output of described DC/DC booster circuit is connected with the input of described DC/AC inverter circuit; The output of DC/AC inverter circuit is connected with the input of described ac filter circuit; The first control output end of described controller is connected with the control end of described DC/DC booster circuit, and the second control output end of described controller is connected with the control end of described DC/AC inverter circuit;
It is characterized in that: described vehicle-mounted inversion system also comprises the first voltage detecting circuit and Boost booster circuit;
The output of described the first voltage detecting circuit is connected with the first input end of described controller, for detection of the output voltage of the input voltage of DC filtering circuit, the output voltage of DC filtering circuit or described Boost booster circuit;
The input of described Boost booster circuit is connected with the output of described DC filtering circuit, the output of this Boost booster circuit is connected with the input of described DC/DC booster circuit, and the control end of this Boost booster circuit is connected with the 3rd control output end of controller.
2. vehicle-mounted inversion system as claimed in claim 1, is characterized in that: described DC/DC booster circuit is for recommending booster circuit.
3. vehicle-mounted inversion system as claimed in claim 1, is characterized in that: described Boost booster circuit is synchronous rectification Boost booster circuit.
4. vehicle-mounted inversion system as claimed in claim 1, is characterized in that: the first described voltage detecting circuit is comprised of first resistance of mutually connecting and the second resistance; One end of this first resistance is connected with the output of the input of described DC filtering circuit, the output of described DC filtering circuit or described Boost booster circuit, the other end of this first resistance is connected with one end of described the second resistance, the other end ground connection of the second resistance; The first resistance is connected with the first input end of described controller with the common contact of the second resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255987.7U CN203951381U (en) | 2014-05-19 | 2014-05-19 | Vehicle-mounted inversion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420255987.7U CN203951381U (en) | 2014-05-19 | 2014-05-19 | Vehicle-mounted inversion system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203951381U true CN203951381U (en) | 2014-11-19 |
Family
ID=51893396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420255987.7U Expired - Lifetime CN203951381U (en) | 2014-05-19 | 2014-05-19 | Vehicle-mounted inversion system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203951381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058819A1 (en) | 2016-09-28 | 2018-04-05 | 深圳市盈动力科技有限公司 | Power limiting circuit of inverter apparatus, and inverter apparatus |
-
2014
- 2014-05-19 CN CN201420255987.7U patent/CN203951381U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018058819A1 (en) | 2016-09-28 | 2018-04-05 | 深圳市盈动力科技有限公司 | Power limiting circuit of inverter apparatus, and inverter apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 201203 Shanghai city Chinese Zuchongzhi Road (Shanghai) Free Trade Zone No. 2388 building 1-2 Co-patentee after: ZHEJIANG KEBODA INDUSTRIAL Co.,Ltd. Patentee after: KEBODA TECHNOLOGY CO.,LTD. Co-patentee after: WENZHOU KEBODA AUTO PARTS Co.,Ltd. Address before: 201203 Shanghai city Zuchongzhi road Pudong New Area Zhangjiang hi tech Park No. 2388 Co-patentee before: ZHEJIANG KEBODA INDUSTRIAL Co.,Ltd. Patentee before: Keboda Technology Corp. Co-patentee before: WENZHOU KEBODA AUTO PARTS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141119 |