JPS58155164U

JPS58155164U - Power supply equipment in television receivers

Info

Publication number: JPS58155164U
Application number: JP1982051525U
Authority: JP
Inventors: 修一青山; 朝倉　義一
Original assignee: 株式会社東芝
Priority date: 1982-04-08
Filing date: 1982-04-08
Publication date: 1983-10-17

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

[Brief explanation of the drawing]

第１図は従来のリモコン操作によって電源を断続する電
源装置を備えるテレビジョン受像機を示す回路図、第２
図は第１図中の電源装置の部分を示す回路図、第３図は
本考案の電源装置の第１実施例を示す回路図、第４図は
本考案の電源装置の第２実施例を示す回路図である。２・・・・・・整流器、３・・・・・・直流安定化回路
、１３・・・・・・音声中間周波増幅回路、１４・・・
・・・音声出力回路、２０・・・・・・水平発振回路、
２３・・・：・・フライバックトランス、２４・・・・
・・選局回路、２５・・・・・・リモコン制御回路、４
１・・・・・・起動回路（Ｑ□・・・トランジスタ、Ｒ
１，Ｒ２，Ｒ６・・・・・・抵抗）、４２・・・・・・
駆動回路（Ｑ２・・・・・・トランジスタ）。Figure 1 is a circuit diagram showing a television receiver equipped with a conventional power supply device that turns on and off power by remote control operation;
The figure is a circuit diagram showing the part of the power supply device in FIG. 1, FIG. 3 is a circuit diagram showing the first embodiment of the power supply device of the present invention, and FIG. 4 is a circuit diagram showing the second embodiment of the power supply device of the present invention. FIG. 2... Rectifier, 3... DC stabilization circuit, 13... Audio intermediate frequency amplification circuit, 14...
...Audio output circuit, 20...Horizontal oscillation circuit,
23...: Flyback transformer, 24...
...Tuning selection circuit, 25...Remote control control circuit, 4
1...Start-up circuit (Q□...transistor, R
1, R2, R6...Resistance), 42...
Drive circuit (Q2...transistor).

Claims

[Scope of utility model registration request]

(1) A voltage supply line including a DC stabilizing circuit for stabilizing and extracting DC voltage, a first transistor having one end of its collector-emitter path connected to the voltage supply line, and a power source from a remote control transmitter. a drive circuit that performs a switching operation based on reception of an on/off command signal, thereby controlling a base potential of the first transistor to make the first transistor conductive when receiving a power-on command signal; a first load circuit with large current consumption including a horizontal output circuit to which the DC voltage from the DC stabilizing circuit is supplied; and the other end of the collector-emitter path of the first transistor to which the obtained DC voltage is supplied. A power supply device for a television receiver, comprising a second load circuit with low current consumption and including a horizontal oscillation circuit.

(2) The drive circuit makes the first transistor conductive upon receiving a power-on command signal, and supplies a predetermined power supply voltage to the horizontal oscillation circuit during initial operation;
The first transistor is rendered non-conductive by a DC voltage obtained by rectifying a pulse obtained from a flyback transformer connected to the horizontal output circuit during steady operation after the start of horizontal oscillation, and the DC voltage causes horizontal oscillation. A power supply device for a television receiver according to claim 1, characterized in that the power supply device is configured to create a circuit.