JPS6489972A - Snubber circuit - Google Patents
Snubber circuitInfo
- Publication number
- JPS6489972A JPS6489972A JP62246140A JP24614087A JPS6489972A JP S6489972 A JPS6489972 A JP S6489972A JP 62246140 A JP62246140 A JP 62246140A JP 24614087 A JP24614087 A JP 24614087A JP S6489972 A JPS6489972 A JP S6489972A
- Authority
- JP
- Japan
- Prior art keywords
- snubber
- diode
- upper side
- switching element
- side arm
- 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.)
- Granted
Links
Landscapes
- Inverter Devices (AREA)
Abstract
PURPOSE:To reduce voltage stress when a snubber circuit is turned OFF, by discharging residual charges in a snubber capacitor on an upper side arm during ON interval of a switching element on the upper side arm. CONSTITUTION:A single phase inverter comprising self-extinguish switching elements(GTO) 11-12 regenerate snubber energy thereof. In the snubber circuit, a series circuit of a snubber diode 31 and a snubber capacitor 41 is connected in parallel with a switching element 11 in an upper side arm, while anode terminal of a snubber diode 32 is connected to the cathode terminal of the snubber diode 31, and a snubber capacitor 43 is connected between the cathode terminal of the diode 32 and the negative pole side terminal of the switching element 12. Regeneration to a DC power source 5 and the like is made through a converter 8. Here, a diode 100, a snubber capacitor 200 and a discharge resistor 300 are inserted additionally. Consequently, residual charges are discharged and voltage stress is eliminated.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246140A JPH0681515B2 (en) | 1987-09-30 | 1987-09-30 | Snubber circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62246140A JPH0681515B2 (en) | 1987-09-30 | 1987-09-30 | Snubber circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6489972A true JPS6489972A (en) | 1989-04-05 |
JPH0681515B2 JPH0681515B2 (en) | 1994-10-12 |
Family
ID=17144075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62246140A Expired - Lifetime JPH0681515B2 (en) | 1987-09-30 | 1987-09-30 | Snubber circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0681515B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5535114A (en) * | 1991-10-22 | 1996-07-09 | Hitachi, Ltd. | Power converter |
-
1987
- 1987-09-30 JP JP62246140A patent/JPH0681515B2/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5535114A (en) * | 1991-10-22 | 1996-07-09 | Hitachi, Ltd. | Power converter |
Also Published As
Publication number | Publication date |
---|---|
JPH0681515B2 (en) | 1994-10-12 |
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