JPH01159586U - - Google Patents
Info
- Publication number
- JPH01159586U JPH01159586U JP5319188U JP5319188U JPH01159586U JP H01159586 U JPH01159586 U JP H01159586U JP 5319188 U JP5319188 U JP 5319188U JP 5319188 U JP5319188 U JP 5319188U JP H01159586 U JPH01159586 U JP H01159586U
- Authority
- JP
- Japan
- Prior art keywords
- photothyristor
- circuit
- winding
- converter
- light emitting
- 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
- 238000004804 winding Methods 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例を示す回路図、第２
図は従来のコンバータの過電圧保護回路の一例を
示す回路図である。
１…入力電源、２，３…入力端子、４，１９，
２７，２８…抵抗器、５，６…トランスの一次巻
線端子、７…トランス、８，９…トランスの二次
巻線端子、１０，１７…ダイオード、１１…平滑
コンデンサ、１２，１３…出力端子、１４…負荷
、１５，１６…駆動巻線、１８，３１…定電圧ダ
イオード、２０…ホトサイリスタの発光部、２１
…ベース回路、２２…スイツチング素子、２３…
ホトサイリスタの受光部、２４…雑音吸収回路、
２５…サーキツトブレーカのトリツプ巻線、２６
…サーキツトブレーカ（ＮＦＢ）、２９…リレー
、３０…トランジツタ、３２…リレーの接点。
Figure 1 is a circuit diagram showing one embodiment of the present invention;
The figure is a circuit diagram showing an example of a conventional converter overvoltage protection circuit. 1... Input power supply, 2, 3... Input terminal, 4, 19,
27, 28... Resistor, 5, 6... Primary winding terminal of transformer, 7... Transformer, 8, 9... Secondary winding terminal of transformer, 10, 17... Diode, 11... Smoothing capacitor, 12, 13... Output Terminal, 14... Load, 15, 16... Drive winding, 18, 31... Constant voltage diode, 20... Light emitting part of photothyristor, 21
...Base circuit, 22...Switching element, 23...
Photothyristor light receiving section, 24... noise absorption circuit,
25...Trip winding of circuit breaker, 26
...circuit breaker (NFB), 29...relay, 30...transistor, 32...relay contact.
Claims (1)
電圧があらかじめ設定された電圧を超えたときホ
トサイリスタの発光部を駆動する過電圧検出回路
と、前記ホトサイリスタの受光部で駆動されるト
リツプ巻線を備えたサーキツトブレーカとを有す
ることを特徴とするコンバータの過電圧保護回路
。 It includes an overvoltage detection circuit that drives the light emitting part of the photothyristor when the voltage induced in the primary winding of the converter transformer exceeds a preset voltage, and a trip winding that is driven by the light receiving part of the photothyristor. An overvoltage protection circuit for a converter, comprising a circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5319188U JPH01159586U (en) | 1988-04-19 | 1988-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5319188U JPH01159586U (en) | 1988-04-19 | 1988-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01159586U true JPH01159586U (en) | 1989-11-06 |
Family
ID=31279185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5319188U Pending JPH01159586U (en) | 1988-04-19 | 1988-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01159586U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100512720B1 (en) * | 2002-11-08 | 2005-09-07 | 삼성전자주식회사 | power supply apparatus for motor and controlling method thereof |
-
1988
- 1988-04-19 JP JP5319188U patent/JPH01159586U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100512720B1 (en) * | 2002-11-08 | 2005-09-07 | 삼성전자주식회사 | power supply apparatus for motor and controlling method thereof |
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