JPS6489976A - Inverter circuit - Google Patents
Inverter circuitInfo
- Publication number
- JPS6489976A JPS6489976A JP62243501A JP24350187A JPS6489976A JP S6489976 A JPS6489976 A JP S6489976A JP 62243501 A JP62243501 A JP 62243501A JP 24350187 A JP24350187 A JP 24350187A JP S6489976 A JPS6489976 A JP S6489976A
- Authority
- JP
- Japan
- Prior art keywords
- small signal
- transistors
- scr
- gate
- main drive
- 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 improve assembling workability and to achieve stable operation, by thermally coupling insulating type small signal transistors with respective main drive transistors. CONSTITUTION:Switching transistors(Tr) 3a-3b thermally coupled with small signal Tr 11a-11b are arranged as main drive transistors. A voltage applying circuit 12 containing Tr 3a-3b is connected to the gate of SCR 9. Upon occurrence of abnormality in a load, i.e. a discharge lamp 7, Tr 3a-3b are heated to increase the temperature of the small signal Tr 11a-11b. Consequently, a divided voltage is applied onto the gate of SCR 9 when the small signal transistor Tr 11b is turned ON, and the opposite ends of the winding 4b of a current transformer are shortcircuited so as to stop oscillation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243501A JPS6489976A (en) | 1987-09-28 | 1987-09-28 | Inverter circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62243501A JPS6489976A (en) | 1987-09-28 | 1987-09-28 | Inverter circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6489976A true JPS6489976A (en) | 1989-04-05 |
Family
ID=17104833
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62243501A Pending JPS6489976A (en) | 1987-09-28 | 1987-09-28 | Inverter circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6489976A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0395597U (en) * | 1990-01-19 | 1991-09-30 | ||
JP2002352977A (en) * | 2001-05-25 | 2002-12-06 | Matsushita Electric Works Ltd | Lighting equipment for high-pressure electric discharge lamp |
-
1987
- 1987-09-28 JP JP62243501A patent/JPS6489976A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0395597U (en) * | 1990-01-19 | 1991-09-30 | ||
JP2002352977A (en) * | 2001-05-25 | 2002-12-06 | Matsushita Electric Works Ltd | Lighting equipment for high-pressure electric discharge lamp |
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