JPS5556472A - Protective circuit for partial excitation in converter transformer - Google Patents
Protective circuit for partial excitation in converter transformerInfo
- Publication number
- JPS5556472A JPS5556472A JP12720878A JP12720878A JPS5556472A JP S5556472 A JPS5556472 A JP S5556472A JP 12720878 A JP12720878 A JP 12720878A JP 12720878 A JP12720878 A JP 12720878A JP S5556472 A JPS5556472 A JP S5556472A
- Authority
- JP
- Japan
- Prior art keywords
- partial excitation
- transformer
- protective circuit
- converter transformer
- pair
- 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
- Dc-Dc Converters (AREA)
- Inverter Devices (AREA)
Abstract
PURPOSE: To prevent a transformer from partial excitation by varying time widths of base driving pulse signals alternately in response to the storage time of each of a pair of switching transistors which repeat ON-OFF alternately.
CONSTITUTION: When a transformer T is excited partially, collector currents ic1 and ic2 of transistors TR1 and TR2 are detected by collector current detectors DET1 and DET2 and converted into DC voltages e1 and e2. By comparing these two detected voltages e1 and e2 through a differential amplifier DEF the driving pulse width is controlled so that the current applied to a pair of switching transistors TR1 and TR2 may be equal.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12720878A JPS5556472A (en) | 1978-10-16 | 1978-10-16 | Protective circuit for partial excitation in converter transformer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12720878A JPS5556472A (en) | 1978-10-16 | 1978-10-16 | Protective circuit for partial excitation in converter transformer |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5556472A true JPS5556472A (en) | 1980-04-25 |
Family
ID=14954388
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12720878A Pending JPS5556472A (en) | 1978-10-16 | 1978-10-16 | Protective circuit for partial excitation in converter transformer |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5556472A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003142A1 (en) * | 1981-03-11 | 1982-09-16 | Ncr Co | Regulated converter with volt-balancing control circuit |
-
1978
- 1978-10-16 JP JP12720878A patent/JPS5556472A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1982003142A1 (en) * | 1981-03-11 | 1982-09-16 | Ncr Co | Regulated converter with volt-balancing control circuit |
US4352153A (en) * | 1981-03-11 | 1982-09-28 | Ncr Corporation | Regulated converter with volt-balancing control circuit |
EP0073825A1 (en) * | 1981-03-11 | 1983-03-16 | Ncr Co | Regulated converter with volt-balancing control circuit. |
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