JPS5975725U - power protection circuit - Google Patents
power protection circuitInfo
- Publication number
- JPS5975725U JPS5975725U JP17265482U JP17265482U JPS5975725U JP S5975725 U JPS5975725 U JP S5975725U JP 17265482 U JP17265482 U JP 17265482U JP 17265482 U JP17265482 U JP 17265482U JP S5975725 U JPS5975725 U JP S5975725U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- power supply
- output
- switch element
- load
- 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
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Rectifiers (AREA)
- Continuous-Control Power Sources That Use Transistors (AREA)
- Power Conversion In General (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案の第１め実施例を示す電源保護回路の回
路図、第２図は負荷を増加させた場合の第２の実施例を
示す回路図、第３図及び第４図は第１図の変形実施例を
示す回路図である。
なお図面に用いられている符号において、１・・・電源
回路、２・・・リレー接点、３・・・リレーソレノイド
、４．５・・・給電線、６・・・トリガー回路、７・・
・分圧回路、２１．２２・・・負荷、Ｓ□・・・スイッ
チである。Fig. 1 is a circuit diagram of a power supply protection circuit showing a first embodiment of the present invention, Fig. 2 is a circuit diagram showing a second embodiment when the load is increased, and Figs. 3 and 4 are FIG. 2 is a circuit diagram showing a modified embodiment of FIG. 1; In addition, in the symbols used in the drawings, 1...power supply circuit, 2...relay contact, 3...relay solenoid, 4.5...power supply line, 6...trigger circuit, 7...
・Voltage dividing circuit, 21.22...Load, S□...Switch.
Claims (1)
源回路の出力にリレー接点を介して結合された第２の負
荷と、上記電源回路、の出力に結合されたりレーソレノ
イド及びその駆動スイッチ素子と、上記第２の負荷の供
給電源電圧を検出し、検出電圧でもって上記駆動スイッ
チ素子のオン状態を継続させると共に、第２の負荷の短
絡故障による上記検出電圧の下降に基いて上記駆動スイ
ッチ素子をオフさせる検出回路と、手動オン・オフスイ
ッチの出力に基いて上記駆動スイッチ素子を一時的にオ
ンさせるスイッチ回路とを具備する電源保護回路。a first load coupled to the output of the DC power supply circuit; a second load coupled to the output of the power supply circuit via a relay contact; and a relay solenoid coupled to the output of the power supply circuit and its drive. The power supply voltage of the switch element and the second load is detected, and the detected voltage is used to keep the drive switch element in the ON state, and the voltage is increased based on the drop in the detected voltage due to a short-circuit failure of the second load. A power protection circuit comprising: a detection circuit that turns off a drive switch element; and a switch circuit that temporarily turns on the drive switch element based on the output of a manual on/off switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17265482U JPS5975725U (en) | 1982-11-12 | 1982-11-12 | power protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17265482U JPS5975725U (en) | 1982-11-12 | 1982-11-12 | power protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5975725U true JPS5975725U (en) | 1984-05-23 |
| JPS6341803Y2 JPS6341803Y2 (en) | 1988-11-02 |
Family
ID=30376302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17265482U Granted JPS5975725U (en) | 1982-11-12 | 1982-11-12 | power protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5975725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012065417A (en) * | 2010-09-15 | 2012-03-29 | Hitachi Ltd | Power supply interruption device and electric apparatus |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4844727A (en) * | 1971-10-11 | 1973-06-27 | ||
| JPS56134840U (en) * | 1980-03-13 | 1981-10-13 |
-
1982
- 1982-11-12 JP JP17265482U patent/JPS5975725U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4844727A (en) * | 1971-10-11 | 1973-06-27 | ||
| JPS56134840U (en) * | 1980-03-13 | 1981-10-13 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012065417A (en) * | 2010-09-15 | 2012-03-29 | Hitachi Ltd | Power supply interruption device and electric apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6341803Y2 (en) | 1988-11-02 |
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