JPH01159539U - - Google Patents
Info
- Publication number
- JPH01159539U JPH01159539U JP5308388U JP5308388U JPH01159539U JP H01159539 U JPH01159539 U JP H01159539U JP 5308388 U JP5308388 U JP 5308388U JP 5308388 U JP5308388 U JP 5308388U JP H01159539 U JPH01159539 U JP H01159539U
- Authority
- JP
- Japan
- Prior art keywords
- short circuit
- abnormal short
- output current
- protection signal
- output
- 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.)
- Granted
Links
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims 8
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
Description
第１図はこの考案の異常短絡保護回路の一実施
例に係り、直流高圧電源の構成を示す回路図、第
２図は従来の短絡保護回路を含む直流高圧電源の
構成を示す回路図である。
２０……タイマ（計時手段）、２２……シヤン
ト、２３……判定電圧設定回路、２４……アンプ
、２５……コンパレータ、２６……アンド回路、
２７……Ｓ／Ｒラツチ。
Fig. 1 is a circuit diagram showing the configuration of a DC high voltage power supply according to an embodiment of the abnormal short circuit protection circuit of this invention, and Fig. 2 is a circuit diagram showing the configuration of a DC high voltage power supply including a conventional short circuit protection circuit. . 20...Timer (timekeeping means), 22...Shunt, 23...Judgment voltage setting circuit, 24...Amplifier, 25...Comparator, 26...AND circuit,
27...S/R latch.
Claims (1)
信号を出力する出力電流検出手段と、 上記出力電流検出手段が出力する出力電流検出
信号のレベルが予め設定された判定レベルを超過
した場合に、異常短絡検出信号を出力する異常短
絡検出手段と、 任意に設定された計時期間の間、計時信号を出
力する計時手段と、 任意に設定された上記計時期間の経過前に、上
記異常短絡検出手段から異常短絡検出信号が出力
された場合には、異常短絡保護信号を出力する保
護信号発生手段と、 上記保護信号発生手段が出力する異常短絡保護
信号をもとに、出力動作を停止させる出力動作停
止手段と、 上記保護信号発生手段が出力する異常短絡保護
信号をもとに、上記計時手段のリセツト動作を行
うリセツト手段と を具備したことを特徴とする異常短絡保護回路
。[Claims for Utility Model Registration] Output current detection means for outputting an output current detection signal corresponding to the output current of a power supply output terminal, and a determination that the level of the output current detection signal outputted by the output current detection means is set in advance. Abnormal short circuit detection means that outputs an abnormal short circuit detection signal when the level is exceeded; Timing means that outputs a timing signal during an arbitrarily set timing period; and Before the arbitrarily set timing period elapses. and a protection signal generation means for outputting an abnormal short circuit protection signal when the abnormal short circuit detection signal is output from the abnormal short circuit detection means; and based on the abnormal short circuit protection signal outputted by the protection signal generation means, Abnormal short circuit protection characterized by comprising: output operation stopping means for stopping output operation; and reset means for resetting the time measuring means based on the abnormal short circuit protection signal outputted by the protection signal generating means. circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988053083U JPH073797Y2 (en) | 1988-04-20 | 1988-04-20 | Abnormal short circuit protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988053083U JPH073797Y2 (en) | 1988-04-20 | 1988-04-20 | Abnormal short circuit protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01159539U true JPH01159539U (en) | 1989-11-06 |
| JPH073797Y2 JPH073797Y2 (en) | 1995-01-30 |
Family
ID=31279080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988053083U Expired - Lifetime JPH073797Y2 (en) | 1988-04-20 | 1988-04-20 | Abnormal short circuit protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH073797Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009124880A (en) * | 2007-11-15 | 2009-06-04 | Mitsubishi Electric Corp | High-voltage power supply device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819317U (en) * | 1981-07-29 | 1983-02-05 | 株式会社東芝 | Current limit protection circuit |
-
1988
- 1988-04-20 JP JP1988053083U patent/JPH073797Y2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819317U (en) * | 1981-07-29 | 1983-02-05 | 株式会社東芝 | Current limit protection circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009124880A (en) * | 2007-11-15 | 2009-06-04 | Mitsubishi Electric Corp | High-voltage power supply device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH073797Y2 (en) | 1995-01-30 |
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