JPS5860892U - Protection circuit when powering on induction heating equipment - Google Patents

Protection circuit when powering on induction heating equipment

Info

Publication number
JPS5860892U
JPS5860892U JP15571681U JP15571681U JPS5860892U JP S5860892 U JPS5860892 U JP S5860892U JP 15571681 U JP15571681 U JP 15571681U JP 15571681 U JP15571681 U JP 15571681U JP S5860892 U JPS5860892 U JP S5860892U
Authority
JP
Japan
Prior art keywords
induction heating
powering
protection circuit
heating equipment
transistor
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.)
Granted
Application number
JP15571681U
Other languages
Japanese (ja)
Other versions
JPS6331517Y2 (en
Inventor
信幸 高橋
若林　恭一
Original Assignee
ソニー株式会社
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 ソニー株式会社 filed Critical ソニー株式会社
Priority to JP15571681U priority Critical patent/JPS5860892U/en
Publication of JPS5860892U publication Critical patent/JPS5860892U/en
Application granted granted Critical
Publication of JPS6331517Y2 publication Critical patent/JPS6331517Y2/ja
Granted legal-status Critical Current

Links

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) [Abstract] 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 drawings]

図は本考案による誘導加熱装置の電源投入時の保護回路
の一例を示す接続図である。 ５はワークコイル、７はスイッチング素子、２４はドラ
イブ回路、２８は禁止用トランジスタである。The figure is a connection diagram showing an example of a protection circuit when the power of the induction heating device according to the present invention is turned on. 5 is a work coil, 7 is a switching element, 24 is a drive circuit, and 28 is an inhibiting transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] ワークコイルに供給される電流をスイッチング制御する
スイッチング素子のゲートに対してスイッチング信号を
与えるドライブ回路を構成する出力トランジスタのベー
スを、禁止用トランジスタのコレクターエミッタを通じ
て接地し、電源検知回路よりの出力によって、電源投入
時より所定の期間上記禁止用トランジスタのベースに禁
示信号を与えることにより、上記ドライブ回路よりスイ
ッチング信号が得られないようにしたことを特徴とする
誘導加熱装置の電源投入時の保護回路。The base of the output transistor that constitutes the drive circuit that provides a switching signal to the gate of the switching element that controls the switching of the current supplied to the work coil is grounded through the collector emitter of the inhibition transistor, and the output from the power supply detection circuit Protection of an induction heating device when power is turned on, characterized in that a switching signal is not obtained from the drive circuit by applying a prohibition signal to the base of the prohibition transistor for a predetermined period from power-on. circuit.
JP15571681U 1981-10-20 1981-10-20 Protection circuit when powering on induction heating equipment Granted JPS5860892U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15571681U JPS5860892U (en) 1981-10-20 1981-10-20 Protection circuit when powering on induction heating equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15571681U JPS5860892U (en) 1981-10-20 1981-10-20 Protection circuit when powering on induction heating equipment

Publications (2)

Publication Number Publication Date
JPS5860892U true JPS5860892U (en) 1983-04-23
JPS6331517Y2 JPS6331517Y2 (en) 1988-08-23

Family

ID=29948285

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15571681U Granted JPS5860892U (en) 1981-10-20 1981-10-20 Protection circuit when powering on induction heating equipment

Country Status (1)

Country Link
JP (1) JPS5860892U (en)

Also Published As

Publication number Publication date
JPS6331517Y2 (en) 1988-08-23

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