JPS6477479A - Inverter circuit - Google Patents
Inverter circuitInfo
- Publication number
- JPS6477479A JPS6477479A JP62232555A JP23255587A JPS6477479A JP S6477479 A JPS6477479 A JP S6477479A JP 62232555 A JP62232555 A JP 62232555A JP 23255587 A JP23255587 A JP 23255587A JP S6477479 A JPS6477479 A JP S6477479A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- inverter
- winding
- circuit
- current
- 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)
Abstract
PURPOSE:To protect an inverter circuit from overcurrent by interrupting a feedback to a switching element when output current of the inverter circuit are made overcurrent. CONSTITUTION:A current transformer 9 is current-coupled with a main circuit for an inverter, and output currents of the transformer 9 are converted into voltage at a constant ratio by using a CR circuit 13. When overcurrents are flowed through the main circuit and said voltage exceeds a fixed value, a trigger element 7 is turned ON, and a photo-TRIAC coupler 8 is turned ON. Consequent ly, voltage at both ends of a winding 3c for a current transformer 3 is held at voltage (approximately 1V) at the time of the conduction of a light-receiving TRIAC. Accordingly, when the turn ratio of the winding 3c to windings 3a, 3b is brought to 2:1, voltage at both ends of the windings 3a, 3b is held at half (0.5V) voltage at both ends of the winding 3c. Power transistors 2a, 2b are cut off when base emitter voltage is brought to a constant value (approxi mately 0.6V), thus stopping the inverter.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62232555A JPS6477479A (en) | 1987-09-18 | 1987-09-18 | Inverter circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62232555A JPS6477479A (en) | 1987-09-18 | 1987-09-18 | Inverter circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6477479A true JPS6477479A (en) | 1989-03-23 |
Family
ID=16941161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62232555A Pending JPS6477479A (en) | 1987-09-18 | 1987-09-18 | Inverter circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6477479A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011511613A (en) * | 2008-02-02 | 2011-04-07 | ジャック、ラッセル | Bipolar power controller |
-
1987
- 1987-09-18 JP JP62232555A patent/JPS6477479A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011511613A (en) * | 2008-02-02 | 2011-04-07 | ジャック、ラッセル | Bipolar power controller |
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