CN202353469U - Bidirectional DC (Direct Current)/DC converter - Google Patents
Bidirectional DC (Direct Current)/DC converter Download PDFInfo
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- CN202353469U CN202353469U CN2011204587492U CN201120458749U CN202353469U CN 202353469 U CN202353469 U CN 202353469U CN 2011204587492 U CN2011204587492 U CN 2011204587492U CN 201120458749 U CN201120458749 U CN 201120458749U CN 202353469 U CN202353469 U CN 202353469U
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- 230000002457 bidirectional effect Effects 0.000 title abstract 4
- 238000004804 winding Methods 0.000 claims abstract description 3
- 230000005669 field effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a bidirectional DC (Direct Current)/DC converter which comprise an input/output source, a second input/output source, a first coil group, a second coil group and a switch, wherein the first coil group is connected with the first input/output source; the second coil is connected with the second input/output source; the switch is arranged in a circuit formed by the second input/output source and the second coil group; the second coil group comprises fixed coils connected in series and at least one switching coil; the switching coil is provided with a first end and a second end; the first end is connected with the fixed coil; the second end is opposite to the first end; when the pick of the switch is poked to the first end of the switching coil, the first coil group and the fixed coil generate an alternating magnetic field; and when the pick of the switch is poked to the second end of the switching coil, the fixed coil and the switching coil form a mutual winding and generates the alternating magnetic field with the first coil group. By virtue of adopting the structure, the bidirectional DC/DC converter is simple and reliable in line structure, and can be used for greatly lowering the design difficulty of the bidirectional DC/DC converter.
Description
Technical field
the present invention relates to a kind of two-way DC/DC converter.
Background technology
In two-way DC/DC converter (with two-way full-bridge is example, and concrete topology is seen accompanying drawing), Va and Vb excursion are respectively:
when energy from Va when Vb flows, require when Va voltage is minimum (Va_min), can convert the maximum (Vb_max) of Vb to.Obtain transformer turn ratio computing formula thus:
: the maximum duty cycle of SW1 ~ SW4
when energy from Vb when Va flows, require when Vb voltage is minimum (Vb_min), can convert the maximum (Va_max) of Va to.Obtain the turn ratio computing formula of transformer thus:
If
Remain unchanged, then require n1 and n2 that the different turn ratioes is arranged.
most of two-way DC/DC converters at present perhaps use the extension topology of conventional DC/DC converter to make n1 equal n2 through changing maximum duty cycle, thereby realize the function of energy two-way flow.Make control mode complicated but change maximum duty cycle, use and extend the increase that topology causes the converter cost again.
Summary of the invention
the purpose of this invention is to provide a kind of two-way DC/DC converter, under the constant prerequisite of control mode, use conventional DC/DC topology (like full-bridge, half-bridge, push-pull etc.), realize the two-way flow of energy.
are for achieving the above object; The invention provides a kind of two-way DC/DC converter; It comprises the first input and output source, the second input and output source, first coil groups that links to each other with the first input and output source, second coil groups that links to each other with the second input and output source, is arranged on the switch in the second input and output source and the formed circuit of second coil groups; Second coil groups comprises the fixed coil of mutual series connection and the switching coil of at least one; Said switching coil have first end that links to each other with said fixed coil and with the first end second opposed end; When the plectrum of switch is allocated to first end of said switching coil; Said first coil groups and said fixed coil produce alternating magnetic field, and when the plectrum of switch was allocated to second end of said switching coil, said fixed coil and switching coil form common winding and said first coil groups produces alternating magnetic field.
preferably are provided with first control switch between the said first input and output source and first coil groups, are provided with second control switch between the said second input and output source and second coil groups.
preferably, said switch is a relay.
preferably, said switch is MOSFET.
preferably, said switch is IGBT.
the present invention adopts above structure, and circuit is simple and reliable, greatly reduces the design difficulty of two-way DC/DC converter.
Description of drawings
accompanying drawing 1 is the structure principle chart in the embodiment of the invention.
Embodiment
Set forth below in conjunction with 1 pair of preferred embodiment of the present invention of accompanying drawing in detail
; Thereby protection scope of the present invention is made more explicit defining so that advantage of the utility model and characteristic can be easier to those skilled in the art will recognize that.
Embodiments of the invention:
are shown in accompanying drawing 1; The former limit of transformer comprises the first input and output source Va and the first coiling group that is connected with the first input and output source Va and first control switch (SW1 ~ SW4); The secondary of transformer comprises that (SW5 ~ SW8), the second coiling group comprises the fixed coil and the switching coil of mutual series connection for the second input and output source Vb and the second coiling group that is connected with the second input and output source Vb and second control switch.Can change the number of turn of transformer secondary through switch, thereby change the turn ratio of transformer.When need be than the higher turn ratio, switch closure be at the b point in the accompanying drawing.When the lower turn ratio of needs, switch closure is at a point in the accompanying drawing.
Under
default conditions, switch closure is at the b point.When the smaller turn ratio of the needs of converter, converter at first need stop the driving of SW1 ~ SW8, and promptly SW1 ~ SW8 is in off state, makes the transformer leakage inductance electric current be reduced to zero.And then make empty frame switch closure partly at a point.In the whole process, this switch all moves under zero current/zero voltage condition, can not cause the damage of switch because of excessive voltage or current spike.
if the driving dwell time of SW1-SW8 is too short, and the converter internal current is not reduced to zero as yet, this moment empty frame part switch motion the time, have bigger voltage or current spike.If but voltage or current spike also can be accepted still in the safety requirements of this switch.
When
this switch was closed into the b point from a point, the description of action sequence and front was basic identical.
are same, can this switch be placed on the former limit of transformer, change the turn ratio of transformer through the mode that changes the former limit number of turn.
switch can be relay.
switch also can be MOSFET (metal-oxide layer-semiconductor-field-effect transistor; Be called for short metal-oxide half field effect transistor; Metal-Oxide-Semiconductor Field-Effect Transistor), MOSFET is a kind of field-effect transistor (field-effect transistor) that can be widely used in analog circuit and digital circuit.
switch also can be IGBT (Insulated Gate Bipolar Transistor); Insulated gate bipolar transistor; By the compound full-control type voltage driven type power semiconductor that BJT (double pole triode) and MOS (insulating gate type field effect tube) form, have the advantage of low conduction voltage drop two aspects of high input impedance and the GTR of MOSFET concurrently.
the present invention adopts above structure, and circuit is simple and reliable, greatly reduces the design difficulty of two-way DC/DC converter.
are above to combine diagram to be illustrated to specific embodiment of the present invention, clearly, on the basis of not leaving scope of the present invention and spirit, can much revise prior art and technology.In the technical field, the common knowledge of a GPRS just can be carried out diversified change in technological main idea scope of the present invention under of the present invention.
Claims (5)
1. two-way DC/DC converter; It is characterized in that: it comprises the first input and output source, the second input and output source, first coil groups that links to each other with the first input and output source, second coil groups that links to each other with the second input and output source, is arranged on the switch in the second input and output source and the formed circuit of second coil groups; Second coil groups comprises the fixed coil of mutual series connection and the switching coil of at least one; Said switching coil have first end that links to each other with said fixed coil and with the first end second opposed end; When the plectrum of switch is allocated to first end of said switching coil; Said first coil groups and said fixed coil produce alternating magnetic field, and when the plectrum of switch was allocated to second end of said switching coil, said fixed coil and switching coil form common winding and said first coil groups produces alternating magnetic field.
2. two-way DC/DC converter according to claim 1 is characterized in that: be provided with first control switch between the said first input and output source and first coil groups, be provided with second control switch between the said second input and output source and second coil groups.
3. two-way DC/DC converter according to claim 1 is characterized in that: said switch is a relay.
4. two-way DC/DC converter according to claim 1 is characterized in that: said switch is MOSFET.
5. two-way DC/DC converter according to claim 1 is characterized in that: said switch is IGBT.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204587492U CN202353469U (en) | 2011-11-18 | 2011-11-18 | Bidirectional DC (Direct Current)/DC converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204587492U CN202353469U (en) | 2011-11-18 | 2011-11-18 | Bidirectional DC (Direct Current)/DC converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353469U true CN202353469U (en) | 2012-07-25 |
Family
ID=46542431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204587492U Expired - Lifetime CN202353469U (en) | 2011-11-18 | 2011-11-18 | Bidirectional DC (Direct Current)/DC converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353469U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403905A (en) * | 2011-11-18 | 2012-04-04 | 江苏艾索新能源股份有限公司 | Bidirectional DC/DC converter |
| CN102843038A (en) * | 2012-08-29 | 2012-12-26 | 江苏兆伏新能源有限公司 | DC/DC (direct current/direct current) changer |
| CN104079277A (en) * | 2014-06-18 | 2014-10-01 | 翁天禄 | Direct-current two-wire type solid state switch |
-
2011
- 2011-11-18 CN CN2011204587492U patent/CN202353469U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403905A (en) * | 2011-11-18 | 2012-04-04 | 江苏艾索新能源股份有限公司 | Bidirectional DC/DC converter |
| CN102843038A (en) * | 2012-08-29 | 2012-12-26 | 江苏兆伏新能源有限公司 | DC/DC (direct current/direct current) changer |
| CN104079277A (en) * | 2014-06-18 | 2014-10-01 | 翁天禄 | Direct-current two-wire type solid state switch |
| CN104079277B (en) * | 2014-06-18 | 2019-08-09 | 翁天禄 | Direct current two- wire system solid-state switch |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215011 Suzhou Xiangyang Road, Jiangsu, No. 9, building 198 Patentee after: Jiangsu Zeversolar New Energy Co.,Ltd. Address before: 215011 Suzhou Xiangyang Road, Jiangsu, No. 9, building 198 Patentee before: JIANGSU EVER-SOLAR NEW ENERGY Co.,Ltd. |
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| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ZOF NEW ENERGY CO., LTD. Effective date: 20140220 |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215011 Suzhou Xiangyang Road, Jiangsu, No. 9, building 198 Patentee after: Jiangsu Zhaofu Aisuo New Energy Co.,Ltd. Address before: 215011 Suzhou Xiangyang Road, Jiangsu, No. 9, building 198 Patentee before: Jiangsu Zeversolar New Energy Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140220 Address after: 215011 Suzhou Xiangyang Road, Jiangsu, No. 9, building 198 Patentee after: Jiangsu Zhaofu Aisuo New Energy Co.,Ltd. Patentee after: JIANGSU ZOF NEW ENERGY Co.,Ltd. Address before: 215011 Suzhou Xiangyang Road, Jiangsu, No. 9, building 198 Patentee before: Jiangsu Zhaofu Aisuo New Energy Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
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Owner name: SMA NEW ENERGY TECHNOLOGY (SHANGHAI) AG Free format text: FORMER OWNER: JIANGSU ZEVERSOLAR NEW ENERGY CO., LTD. Effective date: 20150423 Free format text: FORMER OWNER: JIANGSU ZOF NEW ENERGY CO., LTD. Effective date: 20150423 |
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Free format text: CORRECT: ADDRESS; FROM: 215011 SUZHOU, JIANGSU PROVINCE TO: 200000 PUDONG NEW AREA, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20150423 Address after: 200000, 7, 701, 707B building, Zhongjian building, No. 1568 Century Avenue, Shanghai, Pudong New Area Patentee after: SMA NEW ENERGY TECHNOLOGY (SHANGHAI) CO.,LTD. Address before: 215011 Suzhou Xiangyang Road, Jiangsu, No. 9, building 198 Patentee before: Jiangsu Zhaofu Aisuo New Energy Co.,Ltd. Patentee before: JIANGSU ZOF NEW ENERGY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Units 701 and 707B on the 7th floor of Zhongjian Building, 1568 Century Avenue, Pudong New Area, Shanghai 200000 Patentee after: ESWEI NEW ENERGY TECHNOLOGY (SHANGHAI) Co.,Ltd. Address before: Units 701 and 707B on the 7th floor of Zhongjian Building, 1568 Century Avenue, Pudong New Area, Shanghai 200000 Patentee before: SMA NEW ENERGY TECHNOLOGY (SHANGHAI) CO.,LTD. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120725 |