JPS6474069A - Inverter - Google Patents
InverterInfo
- Publication number
- JPS6474069A JPS6474069A JP62229200A JP22920087A JPS6474069A JP S6474069 A JPS6474069 A JP S6474069A JP 62229200 A JP62229200 A JP 62229200A JP 22920087 A JP22920087 A JP 22920087A JP S6474069 A JPS6474069 A JP S6474069A
- Authority
- JP
- Japan
- Prior art keywords
- overvoltage
- short
- switching devices
- circuit
- power source
- 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.)
- Pending
Links
Landscapes
- Inverter Devices (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
PURPOSE:To protect an inverter from surge and the like, by short-circuiting at least one of input and output windings of a drive transformer when input of overvoltage from a DC power source is detected. CONSTITUTION:An inverter comprises switching devices 1, 2 having control electrodes and a DC power source 3 and feeds power to the load 5 of an output circuit 5. The switching devices 1, 2 are driven by a control circuit 6 through a drive transformer 7. An overvoltage detector 8 comprising a constant voltage element 81 and the like and a shortcircuit 9 for short-circuiting the input winding of the transformer 7 corresponding to a signal fed from the overvoltage detector 8 are provided. Upon provision of overvoltage from the DC power source 3, a transistor 93 in the short-circuit 9 is turned ON to short-circuit an input winding 71 so as to turn the switching devices 1, 2 forcibly. Consequently, the switching devices 1, 2 can be protected from overvoltage.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62229200A JPS6474069A (en) | 1987-09-11 | 1987-09-11 | Inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62229200A JPS6474069A (en) | 1987-09-11 | 1987-09-11 | Inverter |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6474069A true JPS6474069A (en) | 1989-03-20 |
Family
ID=16888383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62229200A Pending JPS6474069A (en) | 1987-09-11 | 1987-09-11 | Inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6474069A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01114326A (en) * | 1987-10-28 | 1989-05-08 | Matsushita Electric Ind Co Ltd | Overcurrent protective device |
-
1987
- 1987-09-11 JP JP62229200A patent/JPS6474069A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01114326A (en) * | 1987-10-28 | 1989-05-08 | Matsushita Electric Ind Co Ltd | Overcurrent protective device |
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