JPS5984615U - power protection circuit - Google Patents
power protection circuitInfo
- Publication number
- JPS5984615U JPS5984615U JP18047782U JP18047782U JPS5984615U JP S5984615 U JPS5984615 U JP S5984615U JP 18047782 U JP18047782 U JP 18047782U JP 18047782 U JP18047782 U JP 18047782U JP S5984615 U JPS5984615 U JP S5984615U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- supply voltage
- voltage
- protection circuit
- regulator
- 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)
- Continuous-Control Power Sources That Use Transistors (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図は従来の電源保護回路の一例を示す系統図、第２
図はこの考案に係わる電源保護回路の一例を示す系統図
、第３図は過負荷検出回路の一例を示す具体的な接続図
である。
２０．３０．４０は電圧レギュレータ、Ｔは電源トラン
ス、５０は過負荷検出回路、Ｖ、、、 Ｖ、□及びＶＲ
２は安定化された電源電圧、５１は電圧比較器、５２は
ラッチ回路、ＳＷはスタートスイッチ、Ｅｏは基準電圧
である。Figure 1 is a system diagram showing an example of a conventional power supply protection circuit.
The figure is a system diagram showing an example of a power supply protection circuit according to this invention, and FIG. 3 is a specific connection diagram showing an example of an overload detection circuit. 20.30.40 is a voltage regulator, T is a power transformer, 50 is an overload detection circuit, V, , V, □ and VR
2 is a stabilized power supply voltage, 51 is a voltage comparator, 52 is a latch circuit, SW is a start switch, and Eo is a reference voltage.
Claims (1)
る第１の電圧レギュレータと、この第１の電源電圧に基
づいて安定化された第２の電源電圧を得る第２の電圧レ
ギュレータと、この第２の電源電圧の電圧降下が所定値
以下になったことを検出する過負荷検出回路とからなり
、上記第２の電圧レギュレータの基準電圧として上記第
１の電源電圧が供給されると共に、第２の電源電圧端子
及び第１の電源電圧端子に接続される負荷が過負荷にな
った時、上記過負荷検出回路の出力に基づいて、上記第
１の電圧レギュレータが制御される様になされた電源保
護回路。a first voltage regulator that obtains a first power supply voltage that is stabilized with respect to an input power supply voltage; and a second voltage regulator that obtains a second power supply voltage that is stabilized based on the first power supply voltage. , an overload detection circuit that detects that the voltage drop of the second power supply voltage has become below a predetermined value, and the first power supply voltage is supplied as a reference voltage to the second voltage regulator, and , so that when the load connected to the second power supply voltage terminal and the first power supply voltage terminal becomes overloaded, the first voltage regulator is controlled based on the output of the overload detection circuit. Power protection circuit made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18047782U JPS5984615U (en) | 1982-11-29 | 1982-11-29 | power protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18047782U JPS5984615U (en) | 1982-11-29 | 1982-11-29 | power protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5984615U true JPS5984615U (en) | 1984-06-07 |
Family
ID=30391315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18047782U Pending JPS5984615U (en) | 1982-11-29 | 1982-11-29 | power protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5984615U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836413B2 (en) * | 1978-04-25 | 1983-08-09 | 松下電器産業株式会社 | Magnetic recording medium manufacturing method and its manufacturing device |
-
1982
- 1982-11-29 JP JP18047782U patent/JPS5984615U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5836413B2 (en) * | 1978-04-25 | 1983-08-09 | 松下電器産業株式会社 | Magnetic recording medium manufacturing method and its manufacturing device |
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