JPS5996912U - overload protection device - Google Patents

overload protection device

Info

Publication number
JPS5996912U
JPS5996912U JP19256682U JP19256682U JPS5996912U JP S5996912 U JPS5996912 U JP S5996912U JP 19256682 U JP19256682 U JP 19256682U JP 19256682 U JP19256682 U JP 19256682U JP S5996912 U JPS5996912 U JP S5996912U
Authority
JP
Japan
Prior art keywords
protection device
overload protection
load
power circuit
overload
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
JP19256682U
Other languages
Japanese (ja)
Inventor
天内　俊明
Original Assignee
パイオニア株式会社
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 by パイオニア株式会社 filed Critical パイオニア株式会社
Priority to JP19256682U priority Critical patent/JPS5996912U/en
Publication of JPS5996912U publication Critical patent/JPS5996912U/en
Pending legal-status Critical Current

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  • Amplifiers (AREA)
  • Protection Of Static Devices (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

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

第１図は、従来の過負荷保護装置を示す回路図、第２図
は、第１図の装置におけるポジスタＰの温−産性性を示
すグラフ、第３図は、本考案の一実施例を示す回路図で
ある。 主要部分の符号の説明、７・・・・・・電圧印加回路、
９・・・・・・検出信号発生回路、１０・・・・・・ラ
ッチ回路、Ｌ３・・・・・・リレーコイル、Ｓｌ、Ｓ２
・・・・・・リレースイッチ。Fig. 1 is a circuit diagram showing a conventional overload protection device, Fig. 2 is a graph showing the temperature-productivity of POSISTOR P in the device shown in Fig. 1, and Fig. 3 is an embodiment of the present invention. FIG. Explanation of symbols of main parts, 7... Voltage application circuit,
9...Detection signal generation circuit, 10...Latch circuit, L3...Relay coil, Sl, S2
...Relay switch.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 負荷を駆動するパワー回路の過負荷保護装置であって、
前記パワー回路への電源投入直後から所定時間に亘って
前記負荷に所定電圧を印加する電圧印加手段と、前記電
圧印加手段によって前記負−荷に所定値以上の電流が供
給されたとき過負荷検出信号を発生する検出信号発生手
段とを含み、前記過負荷検出信号に応じて前記パワー回
路へ供給される電源電圧を低下させることを特徴とする
過負荷保護装置。An overload protection device for a power circuit that drives a load,
voltage application means for applying a predetermined voltage to the load for a predetermined period of time immediately after power is turned on to the power circuit; and overload detection when a current of a predetermined value or more is supplied to the load by the voltage application means. An overload protection device comprising: detection signal generation means for generating a signal, and reducing a power supply voltage supplied to the power circuit in response to the overload detection signal.
JP19256682U 1982-12-20 1982-12-20 overload protection device Pending JPS5996912U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19256682U JPS5996912U (en) 1982-12-20 1982-12-20 overload protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19256682U JPS5996912U (en) 1982-12-20 1982-12-20 overload protection device

Publications (1)

Publication Number Publication Date
JPS5996912U true JPS5996912U (en) 1984-06-30

Family

ID=30414385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19256682U Pending JPS5996912U (en) 1982-12-20 1982-12-20 overload protection device

Country Status (1)

Country Link
JP (1) JPS5996912U (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5397753A (en) * 1977-02-08 1978-08-26 Matsushita Electric Ind Co Ltd Maximum output controller for power amplifier

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5397753A (en) * 1977-02-08 1978-08-26 Matsushita Electric Ind Co Ltd Maximum output controller for power amplifier

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