JPS58183526U - Switching power protection circuit - Google Patents
Switching power protection circuitInfo
- Publication number
- JPS58183526U JPS58183526U JP8062482U JP8062482U JPS58183526U JP S58183526 U JPS58183526 U JP S58183526U JP 8062482 U JP8062482 U JP 8062482U JP 8062482 U JP8062482 U JP 8062482U JP S58183526 U JPS58183526 U JP S58183526U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- switching power
- power supply
- protection circuit
- comparator
- 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
- Dc-Dc Converters (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図は従来のスイッチング電源保護回路の回路図、第
２図は第１図の比較器の電源電圧と比較器出力のタイミ
ングチャート、第３図は本考案の一実施例におけるスイ
ッチング電源保護回路の回路図である。
５・・・比較器、８・・・トランジスタ、９・・・保持
素子、１０・・・保護回路、１２・・・定電圧ダイオー
ド。Fig. 1 is a circuit diagram of a conventional switching power supply protection circuit, Fig. 2 is a timing chart of the power supply voltage of the comparator shown in Fig. 1 and the comparator output, and Fig. 3 is a switching power supply protection circuit according to an embodiment of the present invention. FIG. 5... Comparator, 8... Transistor, 9... Holding element, 10... Protection circuit, 12... Constant voltage diode.
Claims (1)
準電圧を比較する比較器、この比較器の信号により回路
の動作を停止させる保持回路を含むスイッチング電源保
護回路において、比較器の電源電圧が一定値以下になっ
た場合、前記保持回路を動作させなくしたことを特徴と
するスイッチング電源保護回路。 ２ 請求の範囲第１項の記載において、前記比較器の電
源電圧が一定値以下となった場合、前記保持回路に回路
を遮断するスイッチを設けたことを特徴とするスイッチ
ング電源保護回路。 ３ 請求の範囲第１項、または第２項の記載において、
前記保持回路に回路を遮断する定電圧ダイオードを設け
たことを特徴とするスイッチング電源保護回路。[Claims for Utility Model Registration] 1. A switching power supply protection circuit that includes an overvoltage/overcurrent detection circuit, a comparator that compares the output of this detection circuit with a reference voltage, and a holding circuit that stops the operation of the circuit based on the signal of this comparator. 2. A switching power supply protection circuit according to claim 1, wherein the holding circuit is made inoperable when the power supply voltage of the comparator falls below a certain value. 2. The switching power supply protection circuit according to claim 1, wherein the holding circuit is provided with a switch that shuts off the circuit when the power supply voltage of the comparator becomes below a certain value. 3 In the statement of claim 1 or 2,
A switching power supply protection circuit characterized in that the holding circuit is provided with a constant voltage diode that interrupts the circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8062482U JPS58183526U (en) | 1982-06-02 | 1982-06-02 | Switching power protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8062482U JPS58183526U (en) | 1982-06-02 | 1982-06-02 | Switching power protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58183526U true JPS58183526U (en) | 1983-12-07 |
Family
ID=30089762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8062482U Pending JPS58183526U (en) | 1982-06-02 | 1982-06-02 | Switching power protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58183526U (en) |
-
1982
- 1982-06-02 JP JP8062482U patent/JPS58183526U/en active Pending
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