KR970013605A - Power conversion device - Google Patents
Power conversion device Download PDFInfo
- Publication number
- KR970013605A KR970013605A KR1019960032360A KR19960032360A KR970013605A KR 970013605 A KR970013605 A KR 970013605A KR 1019960032360 A KR1019960032360 A KR 1019960032360A KR 19960032360 A KR19960032360 A KR 19960032360A KR 970013605 A KR970013605 A KR 970013605A
- Authority
- KR
- South Korea
- Prior art keywords
- capacitor
- series
- switching
- diode
- circuit means
- 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.)
- Abandoned
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
- H02M7/5387—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters in a bridge configuration
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Power Conversion In General (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
IGBTG1의 입출력단자간으로 제1의 스너브 다이오드 Ds1와 제1의 커패시터 C1의 직렬회로가 접속되어, Ds1으로 병렬로 제2의 커패시터 C2, 제2의 스너브 다이오드 Ds2, 저항 R1에서 되는 충방전회로수단이 접속된다.A series circuit of the first snubber diode Ds1 and the first capacitor C1 is connected between the input and output terminals of the IGBTG1, and the second capacitor C2, the second snubber diode Ds2, and the resistor R1 are connected in parallel to Ds1, Circuit means is connected.
IGBTQ1의 온 동작에 수반하여 C1에서 IGBTQ1과 충방전회로수단을 거쳐 C1으로 되돌리는 폐회로를 형성하고 충방전회로수단의 C2로 전압을 충전시켜 이 충전전압에서 Ds1을 역 바이어스시키는 것과 동시에 IGBTQ1의 오프동작으로 수반하여 C1으로 충전한 전압을 방전시킨다.With the on-operation of the IGBT Q1, a closed circuit for returning C1 to the IGBT Q1 through the charge / discharge circuit means is formed at C1, a voltage is charged to C2 of the charge / discharge circuit means to reverse bias the Ds1 at this charge voltage, And discharges the voltage charged with C1 with the operation.
이것에 의해 종래기술에 의한 스너브 회로에 비하여 동일전류를 차단한 경우에 IGBTQ1으로 인가되는 전압을 저감시켜, 스너브 회로의 커페시터가 방전할 때의 손실도 저감시킬 수 있다.This reduces the voltage applied to the IGBT Q1 when the same current is cut off as compared with the snubber circuit according to the related art, and the loss when the capacitor of the snubber circuit is discharged can also be reduced.
또 1상분의 인버터를 구성하는 GBTQ1, Q2의 각각에는 다이오드 Ds1, Ds3와 커패시터 D1, C3의 직렬회로가 병렬로 접속되어 Ds1, Ds3로 병렬로 커패시터 C2, C4, 다이오드 Ds2, Ds4, 저항 R1, R2에서 되는 회로수단이 접속된다.Diodes Ds1 and Ds3 and a series circuit of capacitors D1 and C3 are connected in parallel to capacitors C2 and C4, diodes Ds2 and Ds4, and resistors R1 and D2 in parallel with Ds1 and Ds3, respectively, in GBTQ1 and Q2, R2 is connected to the circuit means.
또 클램프용의 스너브 커패시터 C5가 구비된다.And a snub capacitor C5 for clamping is provided.
C1, C2 의 직렬회로 C3, C4의 직렬회로는 C2, C4의 전압에 의해 Ds1, Ds3가 역 바이어스 되는 것에 의해 가변용량의 스너브 케패시터로서 작용한다. 이것에 의해 Q1, Q2가 전류를 차단한 경우에 Q, Q2로 인가되는 전압을 저감시켜 스너브회로의 커패시터가 방전할때의 손실도 저감시킬 수 있다.The series circuit of series circuits C3 and C4 of C1 and C2 functions as a variable capacitance snubber capacitor by reversely biasing Ds1 and Ds3 by the voltages of C2 and C4. As a result, when Q1 and Q2 cut off the current, the voltage applied to Q and Q2 is reduced, and the loss when the capacitor of the snubber circuit is discharged can also be reduced.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is a trivial issue, I did not include the contents of the text.
제1도는 본 발명의 제1의 실시예에의한 스너브(Snub)회로의 구성을 표시하는 도면,FIG. 1 is a diagram showing a configuration of a snub circuit according to a first embodiment of the present invention,
제5도는 본 발명의 제2의 실시 예에 의한 스너브회로의 구성을 표시하는 도면.FIG. 5 is a diagram showing a configuration of a snubber circuit according to a second embodiment of the present invention; FIG.
Claims (15)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19753795A JP3199610B2 (en) | 1995-08-02 | 1995-08-02 | Snubber circuit and power conversion device using the same |
JP95-197537 | 1995-08-02 | ||
JP95-210682 | 1995-08-18 | ||
JP21068295A JP3273461B2 (en) | 1995-08-18 | 1995-08-18 | Power converter |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970013605A true KR970013605A (en) | 1997-03-29 |
Family
ID=26510421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019960032360A Abandoned KR970013605A (en) | 1995-08-02 | 1996-08-02 | Power conversion device |
Country Status (3)
Country | Link |
---|---|
KR (1) | KR970013605A (en) |
CN (1) | CN1041673C (en) |
TW (1) | TW301081B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100713169B1 (en) * | 1999-12-28 | 2007-05-02 | 소니 가부시끼 가이샤 | Switching power supply |
KR100936427B1 (en) * | 2004-11-15 | 2010-01-12 | 가부시끼가이샤 도시바 | Power converter |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5241421B2 (en) * | 2008-10-16 | 2013-07-17 | 株式会社日立製作所 | Power converter |
DE102015216496A1 (en) * | 2015-08-28 | 2017-03-02 | Dr. Johannes Heidenhain Gmbh | circuitry |
DE102016203014A1 (en) * | 2016-02-25 | 2017-08-31 | Vega Grieshaber Kg | Driver circuit for intrinsically safe circuits |
EP3340448B1 (en) * | 2016-12-23 | 2023-06-07 | Delta Electronics (Thailand) Public Co., Ltd. | Electric power converter with snubber circuit |
CN110970961B (en) * | 2018-12-06 | 2021-06-08 | 宁德时代新能源科技股份有限公司 | Power consumption protection circuit |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57106230A (en) * | 1980-12-23 | 1982-07-02 | Toshiba Corp | Snubber circuit |
-
1996
- 1996-07-17 TW TW085108699A patent/TW301081B/zh active
- 1996-08-01 CN CN96109274A patent/CN1041673C/en not_active Expired - Fee Related
- 1996-08-02 KR KR1019960032360A patent/KR970013605A/en not_active Abandoned
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100713169B1 (en) * | 1999-12-28 | 2007-05-02 | 소니 가부시끼 가이샤 | Switching power supply |
KR100936427B1 (en) * | 2004-11-15 | 2010-01-12 | 가부시끼가이샤 도시바 | Power converter |
Also Published As
Publication number | Publication date |
---|---|
CN1147723A (en) | 1997-04-16 |
TW301081B (en) | 1997-03-21 |
CN1041673C (en) | 1999-01-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19960802 |
|
PG1501 | Laying open of application | ||
A201 | Request for examination | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20010723 Comment text: Request for Examination of Application Patent event code: PA02011R01I Patent event date: 19960802 Comment text: Patent Application |
|
PC1902 | Submission of document of abandonment before decision of registration | ||
SUBM | Surrender of laid-open application requested |