JPS6217241U

JPS6217241U -

Info

Publication number: JPS6217241U
Application number: JP10837085U
Authority: JP
Priority date: 1985-07-15
Filing date: 1985-07-15
Publication date: 1987-02-02

Description

[Brief explanation of the drawing]

第１図はこの考案の電源オン・オフ制御回路の
実施例を示す図、第２図はプログラマブル・ユニ
ジヤンクシヨン・トランジスタを使用して構成し
た従来の電源オン・オフ制御回路を示す図、第３
図はプログラマブル・ユニジヤンクシヨン・トラ
ンジスタをトランジスタで表した等価回路を示す
図である。１１：直流電源、１２：制御回路、１３：制御
回路入力端、１４：スイツチ用トランジスタ、１
５：出力端、１６：オン・スイツチ、１７：オフ
・スイツチ、１８：抵抗器、１９：スイツチ回路
、２１：プログラマブル・ユニジヤンクシヨン・
トランジスタ、２２：抵抗器、２３：接続点、２
４：抵抗器、３１：制御回路、３２：入力端子、
３３：出力端子、３４：スイツチ用トランジスタ
、３５：第１押釦スイツチ、３６：第２押釦スイ
ツチ、３７：制御用トランジスタ、３８，３９，
４１，４２：抵抗器、４３：自己保持回路、４４
：抵抗器、Ｅ：接地線、Ｌ：負荷。 FIG. 1 is a diagram showing an embodiment of the power on/off control circuit of this invention, FIG. 2 is a diagram showing a conventional power on/off control circuit constructed using programmable union transistors, and FIG. 3
The figure shows an equivalent circuit in which a programmable union transistor is represented by a transistor. 11: DC power supply, 12: Control circuit, 13: Control circuit input terminal, 14: Switch transistor, 1
5: Output terminal, 16: On switch, 17: Off switch, 18: Resistor, 19: Switch circuit, 21: Programmable union
Transistor, 22: Resistor, 23: Connection point, 2
4: Resistor, 31: Control circuit, 32: Input terminal,
33: Output terminal, 34: Switch transistor, 35: First push button switch, 36: Second push button switch, 37: Control transistor, 38, 39,
41, 42: Resistor, 43: Self-holding circuit, 44
: Resistor, E: Ground wire, L: Load.

Claims

[Scope of Claim for Utility Model Registration] A. A switching transistor with a collector-emitter connected in series between one pole of a power source and a load, and B. A collector-emitter connected between the base of this switching transistor and the other pole of the power source. a control transistor to which the emitter is connected; C a first pushbutton switch that applies a forward bias voltage from the power supply to the control transistor; D a forward bias voltage from the output side of the switch transistor to the base of the control transistor; a self-holding circuit that maintains the on state of the control transistor by applying E to the control transistor; A power on/off control circuit consisting of a second push button switch and a second push button switch.