JPS6039124U - Constant current circuit overvoltage protection circuit - Google Patents
Constant current circuit overvoltage protection circuitInfo
- Publication number
- JPS6039124U JPS6039124U JP12971783U JP12971783U JPS6039124U JP S6039124 U JPS6039124 U JP S6039124U JP 12971783 U JP12971783 U JP 12971783U JP 12971783 U JP12971783 U JP 12971783U JP S6039124 U JPS6039124 U JP S6039124U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- constant current
- short
- overvoltage protection
- start switch
- 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
- Protection Of Static Devices (AREA)
- Control Of Voltage And Current 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) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、従来の起動スイッチを有する定電流回路図、
第２図は本考案の一実施例の回路図である。
１・・・定電流源回路、２・・・過電圧保護回路、３・
・・起動スイッチ、４・・・負荷、５・・・電流断検出
回路、６・・・出力開放回路、７・・・出力短絡回路、
８・・・過電圧低減回路、９・・・短絡電流低減回路。FIG. 1 is a constant current circuit diagram with a conventional starting switch;
FIG. 2 is a circuit diagram of an embodiment of the present invention. 1... constant current source circuit, 2... overvoltage protection circuit, 3.
... Start switch, 4... Load, 5... Current disconnection detection circuit, 6... Output open circuit, 7... Output short circuit,
8... Overvoltage reduction circuit, 9... Short circuit current reduction circuit.
Claims (1)
スイッチよりなる定電流回路において、出力開放回路に
かえ、出力短絡回路を設けることにより、負荷開放時及
び起動以前に出力短絡回路を短絡することにより、基板
内での高電圧の発生を防止し、定電流源回路に対する不
要の負荷を低減すると共に、起動スイッチ操作時におい
て、短絡電圧低減回路及び短絡電流低減回路を設けるこ
とにより、起動スイッチにおける短絡電圧及び短絡電流
を低減することを特徴とした定電流回路の過電圧保護回
路。In a constant current circuit consisting of a constant current source circuit, a current disconnection detection circuit, an output open circuit, and a start switch, an output short circuit is provided instead of an output open circuit to short the output short circuit when the load is opened and before startup. This prevents the generation of high voltage within the board and reduces unnecessary load on the constant current source circuit.In addition, by providing a short-circuit voltage reduction circuit and a short-circuit current reduction circuit when the start switch is operated, the start switch An overvoltage protection circuit for a constant current circuit characterized by reducing short circuit voltage and short circuit current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12971783U JPS6039124U (en) | 1983-08-24 | 1983-08-24 | Constant current circuit overvoltage protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12971783U JPS6039124U (en) | 1983-08-24 | 1983-08-24 | Constant current circuit overvoltage protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6039124U true JPS6039124U (en) | 1985-03-18 |
Family
ID=30293827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12971783U Pending JPS6039124U (en) | 1983-08-24 | 1983-08-24 | Constant current circuit overvoltage protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6039124U (en) |
-
1983
- 1983-08-24 JP JP12971783U patent/JPS6039124U/en active Pending
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