JPS58129523U - variable resistor - Google Patents

variable resistor

Info

Publication number
JPS58129523U
JPS58129523U JP2286982U JP2286982U JPS58129523U JP S58129523 U JPS58129523 U JP S58129523U JP 2286982 U JP2286982 U JP 2286982U JP 2286982 U JP2286982 U JP 2286982U JP S58129523 U JPS58129523 U JP S58129523U
Authority
JP
Japan
Prior art keywords
variable resistor
switching transistor
abstract
resistor
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
JP2286982U
Other languages
Japanese (ja)
Inventor
上田 泰臣
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP2286982U priority Critical patent/JPS58129523U/en
Publication of JPS58129523U publication Critical patent/JPS58129523U/en
Pending legal-status Critical Current

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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 the drawing]

第1図は従来の電源回路を示す回路図、第2図は本考案
の一実施例を示す回路図である。 1・・・交流電源、2・・・スイッチ、5.6・・・抵
抗、8・・・トランジスタ、9・・・ダイオード、10
・・・トランス、13・・・負荷、17−hランジスタ
FIG. 1 is a circuit diagram showing a conventional power supply circuit, and FIG. 2 is a circuit diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... AC power supply, 2... Switch, 5.6... Resistor, 8... Transistor, 9... Diode, 10
...Transformer, 13...Load, 17-h transistor.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 一度電源が投入され正常に動作が行なわれた後は、起動
回路からの電流をスイッチングトランジスタに流れない
様に、スイッチングトランジスタのベース、エミッタ間
に抵抗を介してスイッチ素子を設けたことを特徴とする
電源回路。
A switching element is provided between the base and emitter of the switching transistor via a resistor so that the current from the startup circuit does not flow into the switching transistor once the power is turned on and normal operation is performed. power supply circuit.
JP2286982U 1982-02-22 1982-02-22 variable resistor Pending JPS58129523U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2286982U JPS58129523U (en) 1982-02-22 1982-02-22 variable resistor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2286982U JPS58129523U (en) 1982-02-22 1982-02-22 variable resistor

Publications (1)

Publication Number Publication Date
JPS58129523U true JPS58129523U (en) 1983-09-01

Family

ID=30034927

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2286982U Pending JPS58129523U (en) 1982-02-22 1982-02-22 variable resistor

Country Status (1)

Country Link
JP (1) JPS58129523U (en)

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