JPH031639U - - Google Patents

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Publication number
JPH031639U
JPH031639U JP5887189U JP5887189U JPH031639U JP H031639 U JPH031639 U JP H031639U JP 5887189 U JP5887189 U JP 5887189U JP 5887189 U JP5887189 U JP 5887189U JP H031639 U JPH031639 U JP H031639U
Authority
JP
Japan
Prior art keywords
semiconductor element
circuit
overcurrent
power supply
stabilized power
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
Application number
JP5887189U
Other languages
Japanese (ja)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP5887189U priority Critical patent/JPH031639U/ja
Publication of JPH031639U publication Critical patent/JPH031639U/ja
Pending legal-status Critical Current

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  • Emergency Protection Circuit Devices (AREA)

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施例の電気回路図、第２
図は従来例の電気回路図である。 Ｑ１……トランジスタ（半導体素子）、２……
トランジスタ（スイツチング素子）、Ｒ２……抵
抗（過電流検出部）Ｚ……ツエナダイオード（電
子素子）、Ｏ……出力端子。 Fig. 1 is an electrical circuit diagram of one embodiment of the present invention;
The figure is an electrical circuit diagram of a conventional example. Q1...transistor (semiconductor element), 2...
Transistor (switching element), R2...Resistor (overcurrent detection section) Z...Zena diode (electronic element), O...Output terminal.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 半導体素子とこの半導体素子をバイアスする電
子素子により出力電圧を定電圧化する定電圧回路
部と、出力端子に接続される負荷の短絡等の異常
発生により過電流が流れた時に回路部品を発熱や
熱破壊から保護する過電流保護部とを備えてなる
安定化電源回路において、前記過電流保護部を、
オン状態になることにより前記半導体素子のバイ
アスをバイパスするよう介挿接続したスイツチン
グ素子と、前記負荷の異常発生による過電流によ
つて前記スイツチング素子をオン状態に移行させ
る電圧を発生する過電流検出部とにより構成した
ことを特徴とする安定化電源回路。 A constant voltage circuit section that uses a semiconductor element and an electronic element that biases the semiconductor element to constantize the output voltage, and a constant voltage circuit that causes the circuit components to heat up and In a stabilized power supply circuit comprising an overcurrent protection section for protecting from thermal breakdown, the overcurrent protection section:
A switching element interposed and connected so as to bypass the bias of the semiconductor element when turned on, and overcurrent detection that generates a voltage that shifts the switching element to the on state due to an overcurrent caused by an abnormality in the load. A stabilized power supply circuit comprising:
JP5887189U 1989-05-22 1989-05-22 Pending JPH031639U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5887189U JPH031639U (en) 1989-05-22 1989-05-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5887189U JPH031639U (en) 1989-05-22 1989-05-22

Publications (1)

Publication Number Publication Date
JPH031639U true JPH031639U (en) 1991-01-09

Family

ID=31584871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5887189U Pending JPH031639U (en) 1989-05-22 1989-05-22

Country Status (1)

Country Link
JP (1) JPH031639U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002305840A (en) * 2001-03-30 2002-10-18 Matsushita Electric Ind Co Ltd Overcurrent protective circuit
JP2013251518A (en) * 2012-06-01 2013-12-12 Delta Electronics (Shanghai) Co Ltd Led drive circuit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002305840A (en) * 2001-03-30 2002-10-18 Matsushita Electric Ind Co Ltd Overcurrent protective circuit
JP4622133B2 (en) * 2001-03-30 2011-02-02 パナソニック株式会社 Overcurrent protection circuit
JP2013251518A (en) * 2012-06-01 2013-12-12 Delta Electronics (Shanghai) Co Ltd Led drive circuit

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