CN204442157U - The special Bootstrapping drive circuit of a kind of frequency converter - Google Patents
The special Bootstrapping drive circuit of a kind of frequency converter Download PDFInfo
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- CN204442157U CN204442157U CN201420870865.9U CN201420870865U CN204442157U CN 204442157 U CN204442157 U CN 204442157U CN 201420870865 U CN201420870865 U CN 201420870865U CN 204442157 U CN204442157 U CN 204442157U
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- upper arm
- drive circuit
- electric capacity
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Abstract
The utility model relates to the special Bootstrapping drive circuit of a kind of frequency converter, comprises upper arm drive circuit, underarm drive circuit, and IGBT1 and IGBT2 be connected with described upper arm drive circuit, underarm drive circuit respectively; Described upper arm drive circuit comprises resistance R1, R2, R4, electric capacity C1, C3, and upper arm drives, inductance L 1, diode D1, D3, D4; Described resistance R1, R2 connect with D1 and are connected with the VCC pin that described upper arm drives; Be connected with IGBT1 after the VCC pin series diode D2 that described upper arm drives; The VO pin that described upper arm drives is connected with one end of resistance R4, is connected after the described resistance R4 other end and inductance L 1 are connected in series with IGBT1; Be provided with electric capacity C1 between the VCC pin that described upper arm drives and GND pin, between the VO pin that described upper arm drives and GND pin, be provided with electric capacity C3.Beneficial effect is: structure is simple, can be realized the effect of charging energy-storing, to reduce the power supply of independent switch power supply by the electric capacity arranged.
Description
Technical field
The utility model relates to converter technology field, especially relates to the special Bootstrapping drive circuit of a kind of frequency converter.
Background technology
Insulated gate bipolar transistor (i.e. IGBT) has the feature of field of electric force effect transistor (MOSFET) and power transistor (BJT) concurrently, make it to be widely used in power electronic system, particularly in converter technique industry.The use key of IGBT is to design suitable drive circuit.But upper and lower bridge IGBT can not do driving power with same road power supply in the IGBT of frequency converter, exactly because this reason therefore at least need in frequency converter 4 tunnels independently Switching Power Supply power.
In order to reduce the quantity of Switching Power Supply, the utility model proposes the special Bootstrapping drive circuit of a kind of frequency converter.
Utility model content
The utility model provides a kind of frequency converter special Bootstrapping drive circuit, to solve the too much problem of driving power of the prior art.
The technical problem that the utility model solves realizes by the following technical solutions:
The special Bootstrapping drive circuit of a kind of frequency converter, comprises upper arm drive circuit, underarm drive circuit, and IGBT1 and IGBT2 be connected with described upper arm drive circuit, underarm drive circuit respectively;
Described upper arm drive circuit comprises resistance R1, R2, R4, electric capacity C1, C3, and upper arm drives, inductance L 1, diode D1, D3, D4; Described resistance R1, R2 connect with D1 and are connected with the VCC pin that described upper arm drives; Be connected with IGBT1 after the VCC pin series diode D2 that described upper arm drives; The VO pin that described upper arm drives is connected with one end of resistance R4, is connected after the described resistance R4 other end and inductance L 1 are connected in series with IGBT1; Be provided with electric capacity C1 between the VCC pin that described upper arm drives and GND pin, between the VO pin that described upper arm drives and GND pin, be provided with electric capacity C3.
As preferred technical scheme, described electric capacity C1 is connected in parallel to electric capacity C2.
As preferred technical scheme, described electric capacity C2 is electrochemical capacitor, and the capacitance of described electric capacity C2 is 10 to 100 times of described electric capacity C1.
As preferred technical scheme, the VO pin that described upper arm drives is connected with resistance R3 one end, is connected after the described resistance R3 other end and diode D2 are connected in series with IGBT1, to ensure the stable of circuit.
The beneficial effect that the utility model has is: structure is simple, can be realized the effect of charging energy-storing, to reduce the power supply of independent switch power supply by the electric capacity arranged.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model: the structural representation of the special Bootstrapping drive circuit of a kind of frequency converter.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
With reference to shown in Fig. 1, the special Bootstrapping drive circuit of a kind of frequency converter, comprises upper arm drive circuit, underarm drive circuit, and IGBT1 and IGBT2 be connected with described upper arm drive circuit, underarm drive circuit respectively;
Described upper arm drive circuit comprises resistance R1, R2, R4, electric capacity C1, C3, and upper arm drives, inductance L 1, diode D1, D3, D4; Described resistance R1, R2 connect with D1 and are connected with the VCC pin that upper arm drives; Be connected with IGBT1 after the VCC pin series diode D2 that described upper arm drives; The VO pin that described upper arm drives is connected with one end of resistance R3 and R4 respectively, is connected after the described resistance R3 other end and diode D2 are connected in series with IGBT1, is connected after the described resistance R4 other end and inductance L 1 are connected in series with IGBT1; Be provided with electric capacity C1 between the VCC pin that described upper arm drives and GND pin, between the VO pin that described upper arm drives and GND pin, be provided with electric capacity C3.
For increasing the needs of energy storage, described electric capacity C1 is connected in parallel to electric capacity C2.Wherein, described electric capacity C2 is electrochemical capacitor, and the capacitance of described electric capacity C2 is 10 to 100 times of described electric capacity C1.
When frequency converter runs, lower bridge drives and opens, such IGBT2 conducting, and power supply P16F will by charging to electric capacity C2.Now go up the energy storage effect of bridge drive circuit due to electrochemical capacitor C2, be just equivalent to have power supply the same.When upper bridge drive open time, now U point is charged in IGBT1 conducting, but due to the reverse voltage endurance of height of diode D2, therefore high voltage source can not be incorporated on P16F power supply.
The utility model can realize the effect of charging energy-storing, to reduce the power supply of independent switch power supply by the electric capacity arranged.
More than show and describe general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (5)
1. the special Bootstrapping drive circuit of frequency converter, is characterized in that, comprises upper arm drive circuit, underarm drive circuit, and IGBT1 and IGBT2 be connected with described upper arm drive circuit, underarm drive circuit respectively;
Described upper arm drive circuit comprises resistance R1, R2, R4, electric capacity C1, C3, and upper arm drives, inductance L 1, diode D1, D3, D4; Described resistance R1, R2 connect with D1 and are connected with the VCC pin that described upper arm drives; Be connected with IGBT1 after the VCC pin series diode D2 that described upper arm drives; The VO pin that described upper arm drives is connected with one end of resistance R4, is connected after the described resistance R4 other end and inductance L 1 are connected in series with IGBT1; Be provided with electric capacity C1 between the VCC pin that described upper arm drives and GND pin, between the VO pin that described upper arm drives and GND pin, be provided with electric capacity C3.
2. the special Bootstrapping drive circuit of a kind of frequency converter according to claim 1, is characterized in that, described electric capacity C1 is connected in parallel to electric capacity C2.
3. the special Bootstrapping drive circuit of a kind of frequency converter according to claim 2, is characterized in that, described electric capacity C2 is electrochemical capacitor.
4. the special Bootstrapping drive circuit of a kind of frequency converter according to claim 2, is characterized in that, the capacitance of described electric capacity C2 is 10 to 100 times of described electric capacity C1.
5. the special Bootstrapping drive circuit of a kind of frequency converter according to claim 1, is characterized in that, the VO pin that described upper arm drives is connected with resistance R3 one end, is connected after the described resistance R3 other end and diode D2 are connected in series with IGBT1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870865.9U CN204442157U (en) | 2014-12-26 | 2014-12-26 | The special Bootstrapping drive circuit of a kind of frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420870865.9U CN204442157U (en) | 2014-12-26 | 2014-12-26 | The special Bootstrapping drive circuit of a kind of frequency converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204442157U true CN204442157U (en) | 2015-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420870865.9U Expired - Fee Related CN204442157U (en) | 2014-12-26 | 2014-12-26 | The special Bootstrapping drive circuit of a kind of frequency converter |
Country Status (1)
| Country | Link |
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| CN (1) | CN204442157U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506023A (en) * | 2014-12-26 | 2015-04-08 | 上海奇电电气科技有限公司 | Bootstrap driving circuit special for frequency converter |
| US11632040B2 (en) * | 2018-11-20 | 2023-04-18 | Commissariat à l'énergie atomique et aux énergies alternatives | Switch driver powering circuit |
-
2014
- 2014-12-26 CN CN201420870865.9U patent/CN204442157U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104506023A (en) * | 2014-12-26 | 2015-04-08 | 上海奇电电气科技有限公司 | Bootstrap driving circuit special for frequency converter |
| US11632040B2 (en) * | 2018-11-20 | 2023-04-18 | Commissariat à l'énergie atomique et aux énergies alternatives | Switch driver powering circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 201703 Shanghai city Qingpu district Song Chun Road No. 339 Building 8, 2 floor building Patentee after: Shanghai wonder electric Polytron Technologies Inc Address before: 201703 Shanghai city Qingpu district Song Chun Road No. 339 Building 8, 2 floor building Patentee before: Shanghai strange electricity electrically Science and Technology Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20181226 |