CN202374180U - DC/DC bidirectional converter - Google Patents
DC/DC bidirectional converter Download PDFInfo
- Publication number
- CN202374180U CN202374180U CN2011204754601U CN201120475460U CN202374180U CN 202374180 U CN202374180 U CN 202374180U CN 2011204754601 U CN2011204754601 U CN 2011204754601U CN 201120475460 U CN201120475460 U CN 201120475460U CN 202374180 U CN202374180 U CN 202374180U
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- control module
- coil
- transformer
- low
- pole double
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Abstract
The utility model provides a DC/DC bidirectional converter. The DC/DC bidirectional converter comprises a high-voltage control module, a low-voltage control module, a transformer with variable turn ratio and a switch, wherein the turn ratio of the transformer is changed by the switch to achieve mutual conversion of high and low voltages. The DC/DC bidirectional converter dispenses with a boost circuit and a buck circuit, thereby achieving the advantages of small size, light weight and low cost.
Description
Technical field
The utility model relates to a kind of DC/DC bidirectional transducer.
Background technology
Usually the DC/DC bidirectional transducer is used to realize that the direct current high pressure arrives the conversion of high pressure to low pressure or low pressure; And present DC/DC bidirectional transducer adopts extra increase boost booster circuit and the auxiliary required magnitude of voltage of output that reaches of buck reduction voltage circuit; But extra increase boost circuit and buck circuit can make the volume of whole converter increase; Weight increases the weight of, and cost is high.
The utility model content
The converter volume that brings to present DC/DC bidirectional transducer extra increase boost circuit and buck circuit is big, Heavy Weight and the high problem of cost; The utility model provides a kind of DC/DC bidirectional transducer; Can effectively reduce volume and weight, and cost is low.
A kind of DC/DC bidirectional transducer; Said DC/DC bidirectional transducer comprises the high voltage control module that is used to carry out the conversion of high voltage ac/dc electricity, be used to carry out variable transformer of low-pressure control module, the turn ratio of low pressure alterating and direct current conversion and the switch that is used for the control transformer turn ratio; Said high voltage control module comprises first end and second end that is used for the input and output high-tension electricity; Said low-pressure control module comprises the 3rd end and the 4th end that is used to export or import low tension; Said transformer has primary coil and secondary coil; The primary coil of said transformer is connected with the 3rd end of low-pressure control module, and the secondary coil of said transformer links to each other with second end of high voltage control module through switch.
Further, the secondary coil of said transformer comprises first coil and second coil, and an end of said first coil and an end of second coil lead to common port.
Further; Said switch is the single-pole double throw relay; Said single-pole double throw relay comprises not moved end not, moved end and second, moved end, first; Second end of said high voltage control module links to each other with the other end of first coil and the moved end of single-pole double throw relay respectively, said single-pole double throw relay first not the moved end link to each other with common port, the single-pole double throw relay second not the moved end link to each other with the other end of second coil; Said DC/DC bidirectional transducer also comprises the controller that is used to control the single-pole double throw relay, and said controller is electrically connected with the single-pole double throw relay.
Further, said high voltage control module is a phase whole-bridging circuit.
Further, said low-pressure control module is a push-pull circuit.
Further, the switching tube of said phase whole-bridging circuit is IGBT.
A kind of DC/DC bidirectional transducer that the utility model provides is realized high-low pressure mutual conversion in a wider context through the turn ratio that changes transformer, need not to increase boost circuit and buck circuit, and the transducer volume is little, light weight, cost are low.
Description of drawings
The structural representation of a kind of DC/DC bidirectional transducer that Fig. 1 provides for the utility model.
The circuit theory diagrams of a kind of DC/DC bidirectional transducer that Fig. 2 provides for the utility model.
Embodiment
Clearer for technical problem, technical scheme and beneficial effect that the utility model is solved, below in conjunction with accompanying drawing and embodiment, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Shown in accompanying drawing 1; A kind of DC/DC bidirectional transducer that the utility model provides; Comprise the high voltage control module 1 that is used to carry out the conversion of high voltage ac/dc electricity, be used to carry out variable transformer T of low-pressure control module 3, the turn ratio of low pressure alterating and direct current conversion and the switch 2 that is used for the turn ratio of control transformer T; High voltage control module 1 comprises second end and first end that is used for the input and output high-tension electricity, and low-pressure control module 3 comprises the 3rd end and the 4th end that is used for the input and output low tension, and transformer T has primary coil and secondary coil; The primary coil of transformer T is connected with the 3rd end of low pressure input module 3; The secondary coil of transformer T links to each other with high voltage control module 1 through switch 2, and first end of high voltage control module 1 is V1+ and V1-, and the 4th end of low-pressure control module 3 is V2+ and V2-.
The secondary coil of transformer T comprises the first coil L1 and the second coil L2, and the end of the end of the first coil L1 and the second coil L2 leads to common port, and the number of turn of the first coil L1 and the second coil L2 can be set according to actual conditions.
The described high-tension electricity scope of the utility model is 330V-570V, and the low tension scope is 9V-16V.
Shown in accompanying drawing 2; Switch 2 adopts the single-pole double throw relays, comprises not moved end a and second moved end b not of moved end and first, and second end of high voltage control module 1 links to each other with the other end of the first coil L1; The single-pole double throw relay first not moved end a link to each other with common port; The single-pole double throw relay second not moved end b link to each other with the other end of the second coil L2, the DC/DC bidirectional transducer also comprises the controller 4 that is used to control the single-pole double throw relay, controller 4 is electrically connected with the single-pole double throw relay.
High voltage control module 1 adopts phase whole-bridging circuit; Low-pressure control module 3 adopts push-pull circuit; Push-pull circuit is made up of the first transistor Q5 and transistor seconds Q6; Phase whole-bridging circuit adopts an IGBTQ1, the 2nd IGBTQ2, the 3rd IGBTQ3 and the 4th IGBTQ4 bridge-type to connect, and the switching tube of phase whole-bridging circuit also can adopt MOSFET.
Below further set forth the operation principle of the utility model through specific embodiment.
The step-down process: the first moved end a is not got in the moved end of controller 4 control single-pole double throw relays; Select the less first coil L1 work of the secondary coil number of turn of transformer T; High voltage direct current is from first end input of high voltage control module 1; Convert alternating current to afterwards from second end output of high voltage control module 1 through phase whole-bridging circuit, pass through transformer T step-down again, from the 3rd end input of low-pressure control module 3; Convert direct current to through push-pull circuit, from the 4th end output of low-pressure control module 3.
The process of boosting: the second moved end b is not got in the moved end of controller 4 control single-pole double throw relays; Promptly select the whole secondary coil work of transformer T, low-voltage DC converts alternating current from the 4th end input of low-pressure control module 3 to through push-pull circuit; Boost through transformer T again; Second end input from high voltage control module 1 converts direct current to through phase whole-bridging circuit, from first end output of high voltage control module 1.
A kind of DC/DC bidirectional transducer that the utility model provides is realized the mutual conversion of high-low pressure need not to increase boost circuit and buck circuit through the turn ratio that changes transformer, and the transducer volume is little, light weight, cost are low.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; Any modification of being done within all spirit and principles at the utility model, be equal to replacement and improvement etc., all should be included within the protection range of the utility model.
Claims (6)
1. DC/DC bidirectional transducer; It is characterized in that; Said DC/DC bidirectional transducer comprises the high voltage control module that is used to carry out the conversion of high voltage ac/dc electricity, be used to carry out variable transformer of low-pressure control module, the turn ratio of low pressure alterating and direct current conversion and the switch that is used for the control transformer turn ratio; Said high voltage control module comprises second end and first end that is used for the input and output high-tension electricity; Said low-pressure control module comprises the 3rd end and the 4th end that is used to export and import low tension; Said transformer has primary coil and secondary coil, and the primary coil of said transformer is connected with the 3rd end of low-pressure control module, and the secondary coil of said transformer links to each other with second end of high voltage control module through switch.
2. DC/DC bidirectional transducer according to claim 1 is characterized in that, the secondary coil of said transformer comprises first coil and second coil, and an end of said first coil and an end of second coil lead to common port.
3. DC/DC bidirectional transducer according to claim 2; It is characterized in that; Said switch is the single-pole double throw relay, and said single-pole double throw relay comprises not moved end not, moved end and second, moved end, first, and second end of said high voltage control module links to each other with the other end of first coil and the moved end of single-pole double throw relay respectively; Said single-pole double throw relay first not the moved end link to each other with common port; The single-pole double throw relay second not the moved end link to each other with the other end of second coil, said DC/DC bidirectional transducer also comprises the controller that is used to control the single-pole double throw relay, said controller is electrically connected with the single-pole double throw relay.
4. DC/DC bidirectional transducer according to claim 1 is characterized in that, said high voltage control module is a phase whole-bridging circuit.
5. DC/DC bidirectional transducer according to claim 1 is characterized in that, said low-pressure control module is a push-pull circuit.
6. DC/DC bidirectional transducer according to claim 4 is characterized in that, the switching tube of said phase whole-bridging circuit is IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204754601U CN202374180U (en) | 2011-11-25 | 2011-11-25 | DC/DC bidirectional converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204754601U CN202374180U (en) | 2011-11-25 | 2011-11-25 | DC/DC bidirectional converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202374180U true CN202374180U (en) | 2012-08-08 |
Family
ID=46597871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204754601U Expired - Lifetime CN202374180U (en) | 2011-11-25 | 2011-11-25 | DC/DC bidirectional converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202374180U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969892A (en) * | 2012-11-05 | 2013-03-13 | 北京索英电气技术有限公司 | Wide-input-range direct current-direct current (DC-DC) discharging circuit |
| CN103354421A (en) * | 2013-07-08 | 2013-10-16 | 佛山市新光宏锐电源设备有限公司 | DC-DC converter |
| CN104836448A (en) * | 2015-05-26 | 2015-08-12 | 苏州弘鹏新能源有限公司 | Full bridge push-pull variable inverter |
| CN109861539A (en) * | 2017-11-30 | 2019-06-07 | 比亚迪股份有限公司 | Electric car and its power circuit |
-
2011
- 2011-11-25 CN CN2011204754601U patent/CN202374180U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969892A (en) * | 2012-11-05 | 2013-03-13 | 北京索英电气技术有限公司 | Wide-input-range direct current-direct current (DC-DC) discharging circuit |
| CN102969892B (en) * | 2012-11-05 | 2015-11-18 | 北京索英电气技术有限公司 | wide input range DC-DC discharge circuit |
| CN103354421A (en) * | 2013-07-08 | 2013-10-16 | 佛山市新光宏锐电源设备有限公司 | DC-DC converter |
| CN103354421B (en) * | 2013-07-08 | 2016-08-10 | 佛山市新光宏锐电源设备有限公司 | A kind of dc-dc |
| CN104836448A (en) * | 2015-05-26 | 2015-08-12 | 苏州弘鹏新能源有限公司 | Full bridge push-pull variable inverter |
| CN109861539A (en) * | 2017-11-30 | 2019-06-07 | 比亚迪股份有限公司 | Electric car and its power circuit |
| CN109861539B (en) * | 2017-11-30 | 2022-02-08 | 比亚迪股份有限公司 | Electric automobile and power supply circuit thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120808 |
|
| CX01 | Expiry of patent term |