JPS617287U - Step-down self-excited chopper circuit - Google Patents

Step-down self-excited chopper circuit

Info

Publication number
JPS617287U
JPS617287U JP8978584U JP8978584U JPS617287U JP S617287 U JPS617287 U JP S617287U JP 8978584 U JP8978584 U JP 8978584U JP 8978584 U JP8978584 U JP 8978584U JP S617287 U JPS617287 U JP S617287U
Authority
JP
Japan
Prior art keywords
chopper circuit
series
circuit
transistor
switching 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
JP8978584U
Other languages
Japanese (ja)
Other versions
JPS645984Y2 (en
Inventor
昇 加藤
光恒 津村
Original Assignee
富士電気化学株式会社
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 富士電気化学株式会社 filed Critical 富士電気化学株式会社
Priority to JP8978584U priority Critical patent/JPS617287U/en
Publication of JPS617287U publication Critical patent/JPS617287U/en
Application granted granted Critical
Publication of JPS645984Y2 publication Critical patent/JPS645984Y2/ja
Granted legal-status Critical Current

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  • 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

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

図面は本考案に係る降圧型自励チョッパー回路の一実施
例を示す回路図である。 Ｑ・・・スイッチングトランジスタ、Ｑ２・・・発振ト
ランジスタ、Ｌ・・・チョークコイル、Ｃ０・・・平滑
コンデンサ、Ｄ・・・ダイオード、Ｒ１・・・抵抗、ｚ
Ｄ・・・ツエナーダイオード。The drawing is a circuit diagram showing an embodiment of a step-down self-exciting chopper circuit according to the present invention. Q: switching transistor, Q2: oscillation transistor, L: choke coil, C0: smoothing capacitor, D: diode, R1: resistor, z
D...Zener diode.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 負荷に対して直列に接続されるスイッチングトランジス
タと、該スイッチングトランジスタをオンーオフ制御す
る発振トランジスタと、負荷に対して直列に接続される
チョークコイルと並列に接続される平滑コンデンサ及び
ダイオードを含む整流平滑部とを備えた降圧型チョツパ
ー回路において、前記発振トランジスタをスイッチング
トランジスタのベースと電源出力との間に接続してダー
リントン回路を構成するとともに、電源入力に対して並
列に抵抗と定電圧素子との直列回路を設け、該抵抗と定
電圧素子との接続点と前記発振トランジスタのベースと
を接続してなる降圧型自励チョツパー回路。A rectifying and smoothing section including a switching transistor connected in series to the load, an oscillation transistor for controlling the switching transistor on and off, a choke coil connected in series to the load, and a smoothing capacitor and a diode connected in parallel. In a step-down chopper circuit, the oscillation transistor is connected between the base of the switching transistor and the power output to form a Darlington circuit, and a resistor and a constant voltage element are connected in series in parallel to the power input. A step-down self-excited chopper circuit comprising: a step-down type self-excited chopper circuit comprising a circuit, and a connection point between the resistor and the constant voltage element and a base of the oscillation transistor.
JP8978584U 1984-06-16 1984-06-16 Step-down self-excited chopper circuit Granted JPS617287U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8978584U JPS617287U (en) 1984-06-16 1984-06-16 Step-down self-excited chopper circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8978584U JPS617287U (en) 1984-06-16 1984-06-16 Step-down self-excited chopper circuit

Publications (2)

Publication Number Publication Date
JPS617287U true JPS617287U (en) 1986-01-17
JPS645984Y2 JPS645984Y2 (en) 1989-02-15

Family

ID=30644190

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8978584U Granted JPS617287U (en) 1984-06-16 1984-06-16 Step-down self-excited chopper circuit

Country Status (1)

Country Link
JP (1) JPS617287U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100483396B1 (en) * 1997-02-28 2005-06-16 산요덴키가부시키가이샤 Voltage drop type dc-dc conventer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100483396B1 (en) * 1997-02-28 2005-06-16 산요덴키가부시키가이샤 Voltage drop type dc-dc conventer

Also Published As

Publication number Publication date
JPS645984Y2 (en) 1989-02-15

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