CN204967650U - Vehicle mounted power dc -to -ac converter is pressed to single -stage liftable - Google Patents
Vehicle mounted power dc -to -ac converter is pressed to single -stage liftable Download PDFInfo
- Publication number
- CN204967650U CN204967650U CN201520636497.6U CN201520636497U CN204967650U CN 204967650 U CN204967650 U CN 204967650U CN 201520636497 U CN201520636497 U CN 201520636497U CN 204967650 U CN204967650 U CN 204967650U
- Authority
- CN
- China
- Prior art keywords
- winding
- electric capacity
- switching tube
- output
- inductance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model discloses a vehicle mounted power dc -to -ac converter is pressed to single -stage liftable, including the first unit that steps up, second step up unit, a the bypass switch pipe, the 2nd the bypass switch pipe, the first unit that steps up includes first switch tube, second switch pipe, first inductance, first electric capacity, and the second steps up the unit and includes third switch tube, fourth switch tube, second inductance, second electric capacity, and first inductance and second inductance are coupling inductance. This circuit input voltage excursion is big, adopts coupling inductance for can effectively restrain the ripple, reduce the device and damage the impact that causes the circuit, avoid the short circuit.
Description
Technical field
The utility model relates to a kind of single-stage lifting press vehicle mounted power inverter, belongs to AC/DC (DC/AC) device for converting electric energy.
Background technology
Inverter is widely used in motor and drives, uninterruption power source, induction heating, static state reactive generator and the occasion such as compensator and active power filtering.Traditional inverter circuit topology comprises voltage source inverter and current source inverter two class.
The output AC voltage of voltage source inverter is lower than DC bus-bar voltage, therefore voltage source inverter is a voltage-dropping type inverter in essence, in order to realize the function of boosting inverter, needing extra increase first class boost translation circuit, causing converter complicated integral structure.
Current source inverter is a booster type inverter in essence, in order to realize the function of decompression transformation, needing extra increase downconverter circuit, causing converter complicated integral structure; Current source inverter can only realize unidirectional power transfer, and energy can not two-way flow.
In order to solve the problems referred to above of voltage source inverter and current source inverter existence, scholar proposes the concept of Z-source inverter, converter main circuit and power supply is coupled together by introducing a Z source network.Compare with current source inverter with voltage source, the function that Z-source inverter can provide buck to convert, but the transmitted in both directions of energy can not be realized equally, introduce extra by inductance, the passive component of electric capacity composition, adds the volume of system simultaneously, weight and realize cost, controls complexity simultaneously.Propose again the Z-source inverter circuit of some remodeling both at home and abroad on this basis successively, its essence is all realize boosting by introducing passive component, all there are the problems referred to above.
Vehicle power has type, 1. inverter, is a kind ofly DC12V direct current to be converted to the AC220V alternating current identical with civil power, for general electrical equipment, is one power supply changeover device easily, gains the name owing to being usually used in automobile.2.DC/DC DC converter power supply, normally changes the direct currents such as 48VDC into 12VDC or 24VDC of automobile batteries and uses to the electric equipment on automobile.
Vehicle power is not only applicable to onboard system, as long as there is the occasion of DC12V DC power supply, all can use power inverter, DC12V is converted to AC220V alternating current, bring convenience to the life of people.Vehicle power fully takes into account outside environment for use, automatically will protect shutdown when there is overload or short circuit phenomenon.The output voltage of vehicle power can make voltage stabilization by the feedback acknowledgment of itself, and unloaded with specified magnitude of voltage change is less than 10V.It should be noted that, the object of vehicle power exports the voltage identical with civil power, meet the needs of electrical appliance, but what in fact vehicle power exported is analog sine, and civil power is real sine wave, both are slightly different, generally do not affect use, and this is the operation principle decision of vehicle power.
The inverter of single stage power converter is conducive to the lifting of power density and efficiency, and single stage type inverter has power stage and only has one-level, the advantages such as efficiency is high, and volume is little.The inverter of double-boost converter, adopts the two-way DC/DC converter differential output of two groups of independent symmetrical, obtains pure sinusoid alternating voltage.Common modulation system makes two groups of Boost respectively export a road to differ the voltage that 180 ° are with direct current biasings, obtains the ac output voltage of lifting press through differential output.The all power switchs of this modulation system downconverter are all in high frequency modulated state in whole power frequency period, and inductive current is large, switch tube voltage current stress is also larger, inductor loss, switching tube on-state loss and switching loss is caused to increase, there is inner circulation in whole converter simultaneously, is unfavorable for the lifting of efficiency.
Summary of the invention
Technical problem to be solved in the utility model is: provide a kind of single-stage lifting press vehicle mounted power inverter, solve the problem that in prior art, vehicle power switch tube voltage stress is large, ripple is strong.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
A kind of single-stage lifting press vehicle mounted power inverter, comprise the first boosting unit, second boosting unit, first by-pass switch pipe, second by-pass switch pipe, described first boosting unit comprises the first switching tube, second switch pipe, first inductance, first electric capacity, second boosting unit comprises the 3rd switching tube, 4th switching tube, second inductance, second electric capacity, first electric capacity, second electric capacity includes first end, second end, first inductance and the second inductance are coupling inductance, wherein, first inductance comprises the first winding and the second winding, second inductance comprises the tertiary winding and the 4th winding, first to fourth winding includes first end and the second end, the first end of the first winding and the first end Same Name of Ends each other of the second winding, the first end of the tertiary winding and the first end Same Name of Ends each other of the 4th winding, the first end of the first winding is connected with the positive pole of DC power supply, second end of described second winding is connected with the input of the first switching tube, the output of second switch pipe respectively, the output of the first switching tube is connected with the output of the 3rd switching tube, the second end of the first electric capacity, the second end of the second electric capacity respectively, the first end of the described tertiary winding is connected with the positive pole of DC power supply, and the second end of the 4th winding is connected with the input of the 3rd switching tube, the output of the 4th switching tube respectively, the input of described 4th switching tube is connected with the first end of the second electric capacity, the first end of the first electric capacity is as the first output of this inverter, the first end of the second electric capacity is as the second output of this inverter, the input of the first by-pass switch pipe is connected with the first output of this inverter, the output of the first by-pass switch pipe is connected with the second end of the first winding, the first end of the second winding respectively, the input of the second by-pass switch pipe is connected with the second output of this inverter, the output of the second by-pass switch pipe is connected with the second end of the tertiary winding, the first end of the 4th winding respectively.
Equal parallel diode between the input of described switching tube, output, the anode of diode is connected with the output of switching tube, and the negative electrode of diode is connected with the input of switching tube.
Described switching circuit comprises switching tube, and described switching tube comprises metal-oxide-semiconductor, triode or JFET.
The capacitance of described first electric capacity and the second electric capacity is 0.1uF ~ 10uF, and capacitance is equal.
The capacitance of described first electric capacity and the second electric capacity is 1uF.
Compared with prior art, the utility model has following beneficial effect:
1, share a boost inductance and HF switch pipe, be conducive to improving power density, reduce the volume of inverter.Make the voltage stress of switching tube less than traditional approach with the current stress of inductance.
2, change range of input voltage is large, adopts coupling inductance, makes it possible to effectively suppress ripple, reduces the impact that device failure causes circuit, avoids short circuit.
3, topology is simple, and efficiency is high, and reliability is high.
Accompanying drawing explanation
Fig. 1 is the circuit theory diagrams of the utility model inverter.
Embodiment
Below in conjunction with accompanying drawing, structure of the present utility model and the course of work are described further.
Those skilled in the art of the present technique are understandable that, unless otherwise defined, all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the utility model.Should also be understood that those terms defined in such as general dictionary should be understood to have the meaning consistent with the meaning in the context of prior art, unless and define as here, can not explain by idealized or too formal implication.
As shown in Figure 1, a kind of single-stage lifting press vehicle mounted power inverter, comprise the first boosting unit, second boosting unit, first by-pass switch pipe S5, second by-pass switch pipe S6, described first boosting unit comprises the first switching tube S1, second switch pipe S2, first inductance, first electric capacity C1, second boosting unit comprises the 3rd switching tube S3, 4th switching tube S4, second inductance, second electric capacity C2, first electric capacity C1, second electric capacity C2 includes first end, second end, first inductance and the second inductance are coupling inductance, wherein, first inductance comprises the first winding L 1 and the second winding L 2, second inductance comprises tertiary winding L3 and the 4th winding L 4, first to fourth winding includes first end and the second end, the first end of the first winding L 1 and the first end Same Name of Ends each other of the second winding L 2, the first end of tertiary winding L3 and the first end Same Name of Ends each other of the 4th winding L 4, the first end of the first winding L 1 is connected with the positive pole of DC power supply Vin, second end of described second winding L 2 is connected with the input of the first switching tube S1, the output of second switch pipe S2 respectively, the output of the first switching tube S1 is connected with the output of the 3rd switching tube S3, second end of the first electric capacity C1, second end of the second electric capacity C2 respectively, the described first end of tertiary winding L3 is connected with the positive pole of DC power supply, and the second end of the 4th winding L 4 is connected with the input of the 3rd switching tube S3, the output of the 4th switching tube S4 respectively, the input of described 4th switching tube S4 is connected with the first end of the second electric capacity C2, the first end of the first electric capacity C1 is as the first output of this inverter, the first end of the second electric capacity C2 is as the second output of this inverter, the input of the first by-pass switch pipe S5 is connected with the first output of this inverter, the output of the first by-pass switch pipe S5 is connected with the second end of the first winding L 1, the first end of the second winding L 2 respectively, the input of the second by-pass switch pipe S6 is connected with the second output of this inverter, the output of the second by-pass switch pipe S6 is connected with second end of tertiary winding L3, the first end of the 4th winding L 4 respectively.
Equal parallel diode between the input of described switching tube, output, the anode of diode is connected with the output of switching tube, and the negative electrode of diode is connected with the input of switching tube.
Described switching circuit comprises switching tube, and described switching tube comprises metal-oxide-semiconductor, triode or JFET.
The capacitance of described first electric capacity and the second electric capacity is 0.1uF ~ 10uF, and capacitance is equal.
The capacitance of described first electric capacity and the second electric capacity is 1uF.
This invention also possesses following advantage:
Share a boost inductance and HF switch pipe, be conducive to improving power density, reduce the volume of inverter.Make the voltage stress of switching tube less than traditional approach with the current stress of inductance.
Change range of input voltage is large, adopts coupling inductance, makes it possible to effectively suppress ripple, reduces the impact that device failure causes circuit, avoids short circuit.
Topology is simple, and efficiency is high, and reliability is high.
The above is only some embodiments of the present utility model; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a single-stage lifting press vehicle mounted power inverter, comprise the first boosting unit, second boosting unit, first by-pass switch pipe, second by-pass switch pipe, described first boosting unit comprises the first switching tube, second switch pipe, first inductance, first electric capacity, second boosting unit comprises the 3rd switching tube, 4th switching tube, second inductance, second electric capacity, first electric capacity, second electric capacity includes first end, second end, it is characterized in that: the first inductance and the second inductance are coupling inductance, wherein, first inductance comprises the first winding and the second winding, second inductance comprises the tertiary winding and the 4th winding, first to fourth winding includes first end and the second end, the first end of the first winding and the first end Same Name of Ends each other of the second winding, the first end of the tertiary winding and the first end Same Name of Ends each other of the 4th winding, the first end of the first winding is connected with the positive pole of DC power supply, second end of described second winding is connected with the input of the first switching tube, the output of second switch pipe respectively, the output of the first switching tube is connected with the output of the 3rd switching tube, the second end of the first electric capacity, the second end of the second electric capacity respectively, the first end of the described tertiary winding is connected with the positive pole of DC power supply, and the second end of the 4th winding is connected with the input of the 3rd switching tube, the output of the 4th switching tube respectively, the input of described 4th switching tube is connected with the first end of the second electric capacity, the first end of the first electric capacity is as the first output of this inverter, the first end of the second electric capacity is as the second output of this inverter, the input of the first by-pass switch pipe is connected with the first output of this inverter, the output of the first by-pass switch pipe is connected with the second end of the first winding, the first end of the second winding respectively, the input of the second by-pass switch pipe is connected with the second output of this inverter, the output of the second by-pass switch pipe is connected with the second end of the tertiary winding, the first end of the 4th winding respectively.
2. single-stage lifting press vehicle mounted power inverter according to claim 1, it is characterized in that: equal parallel diode between the input of described switching tube, output, the anode of diode is connected with the output of switching tube, and the negative electrode of diode is connected with the input of switching tube.
3. single-stage lifting press vehicle mounted power inverter according to claim 1 and 2, it is characterized in that: described switching circuit comprises switching tube, described switching tube comprises metal-oxide-semiconductor, triode or JFET.
4. single-stage lifting press vehicle mounted power inverter according to claim 1, is characterized in that: the capacitance of described first electric capacity and the second electric capacity is 0.1uF ~ 10uF, and capacitance is equal.
5. single-stage lifting press vehicle mounted power inverter according to claim 4, is characterized in that: the capacitance of described first electric capacity and the second electric capacity is 1uF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636497.6U CN204967650U (en) | 2015-08-24 | 2015-08-24 | Vehicle mounted power dc -to -ac converter is pressed to single -stage liftable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520636497.6U CN204967650U (en) | 2015-08-24 | 2015-08-24 | Vehicle mounted power dc -to -ac converter is pressed to single -stage liftable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204967650U true CN204967650U (en) | 2016-01-13 |
Family
ID=55062688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520636497.6U Expired - Fee Related CN204967650U (en) | 2015-08-24 | 2015-08-24 | Vehicle mounted power dc -to -ac converter is pressed to single -stage liftable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204967650U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141157A (en) * | 2015-08-24 | 2015-12-09 | 苏州市博得立电源科技有限公司 | Single-stage vehicle-mounted power supply inverter capable of boosting voltage and reducing voltage |
| CN106849731A (en) * | 2017-04-13 | 2017-06-13 | 盐城工学院 | A kind of control method of buck-boost grid-connected inverter |
| TWI777736B (en) * | 2021-01-13 | 2022-09-11 | 立錡科技股份有限公司 | Buck-boost switching regulator having bypass mode and control method thereof |
-
2015
- 2015-08-24 CN CN201520636497.6U patent/CN204967650U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105141157A (en) * | 2015-08-24 | 2015-12-09 | 苏州市博得立电源科技有限公司 | Single-stage vehicle-mounted power supply inverter capable of boosting voltage and reducing voltage |
| CN106849731A (en) * | 2017-04-13 | 2017-06-13 | 盐城工学院 | A kind of control method of buck-boost grid-connected inverter |
| TWI777736B (en) * | 2021-01-13 | 2022-09-11 | 立錡科技股份有限公司 | Buck-boost switching regulator having bypass mode and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101860192B (en) | Three-state three-level PFC circuit and multi-state three-level PFC circuit | |
| CN105846696A (en) | Two-stage type AC-DC converter and control method thereof | |
| CN102664546A (en) | Five-level current transformation topological structure with bi-directional power switch and applications thereof | |
| CN202586797U (en) | Five-level variable-current topological structure with bidirectional power switches and application thereof | |
| CN105119513A (en) | Control method for optically-coupled isolation vehicle power supply photovoltaic inverter | |
| CN204967650U (en) | Vehicle mounted power dc -to -ac converter is pressed to single -stage liftable | |
| CN105356784A (en) | Grid connected inverter with DC bus voltage balance function | |
| CN103888010A (en) | High-frequency isolated type three-level inverter based on push-pull converter | |
| CN103312211A (en) | Control method of single phase grid-connected inverter | |
| CN202918023U (en) | Battery management power module | |
| CN204391751U (en) | A kind of three-phase and four-line parallel connection type dynamic voltage compensator | |
| CN104796019B (en) | A kind of Z sources three-level PWM rectifier and its control method | |
| CN105186900A (en) | Five-level transformerless inverter circuit | |
| CN107465343A (en) | A kind of two-way DC/DC converters of low conduction loss | |
| CN105141157A (en) | Single-stage vehicle-mounted power supply inverter capable of boosting voltage and reducing voltage | |
| CN104682395A (en) | Comprehensive power quality controller | |
| CN204967656U (en) | Vehicle -mounted power supply inverter | |
| CN105429445A (en) | Bidirectional converter for alternating current/direct current microgrid | |
| CN203301393U (en) | Non transformer single-phase grid connected inverter | |
| CN105141161A (en) | Control method of single-stage boost-buck vehicle power supply inverter | |
| CN105186905A (en) | Method for controlling optically-coupled isolation single-stage buck-boost vehicle-mounted power inverter | |
| CN207150428U (en) | A kind of two-way DC/DC converters of low conduction loss | |
| CN105141160A (en) | Vehicle-mounted power supply photovoltaic inverter | |
| CN207184328U (en) | The power-supply system and power cell of a kind of power cell | |
| CN105262091A (en) | Control method for vehicle-mounted power supply photovoltaic inverter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160113 Termination date: 20190824 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |