JPS6181262U

JPS6181262U -

Info

Publication number: JPS6181262U
Application number: JP16602884U
Authority: JP
Priority date: 1984-10-31
Filing date: 1984-10-31
Publication date: 1986-05-29

Description

[Brief explanation of the drawing]

第１図は本考案の実施例に係るテレビジヨン受
信機の回路図、第２図は本考案の他の実施例の主
要部の回路図、第３図は本考案の応用例を示すテ
レビジヨン受信機の回路図、第４図は従来例のテ
レビジヨン受信機の回路図である。１…テレビジヨン受信機、２…スイツチングレ
ギユレータ、４，４ａ…制御回路、１０…水平偏
向回路、１２…トリガ信号発生回路、１４…プロ
テクタ回路、１６，１８…検知回路、Ｔｒ１…発
振トランジスタ、Ｔ１…コンバータトランス、Ｔ
２…フライバツクトランス。 Figure 1 is a circuit diagram of a television receiver according to an embodiment of the present invention, Figure 2 is a circuit diagram of the main part of another embodiment of the present invention, and Figure 3 is a television receiver showing an example of application of the present invention. Circuit Diagram of Receiver FIG. 4 is a circuit diagram of a conventional television receiver. DESCRIPTION OF SYMBOLS 1... Television receiver, 2... Switching regulator, 4, 4a... Control circuit, 10... Horizontal deflection circuit, 12... Trigger signal generation circuit, 14... Protector circuit, 16, 18... Detection circuit, Tr1... Oscillation Transistor, T1...Converter transformer, T
2...Flyback transformer.

Claims

[Scope of utility model registration request]

a switching regulator comprising a converter transformer, an oscillation transistor connected to the primary side of the converter transformer, and a control circuit that controls the base current of the oscillation transistor;
A trigger signal is generated by receiving a sawtooth wave flowing through a horizontal deflection circuit that inputs the output of this switching regulator as a power source, a protector circuit that stops the operation of this horizontal deflection circuit, and a flyback transformer of the horizontal deflection circuit. In a television receiver equipped with a trigger signal generation circuit, a detection circuit for detecting the presence or absence of a trigger signal is connected to the trigger signal generation circuit, and a detection circuit for detecting the presence or absence of a trigger signal is connected to the trigger signal generation circuit, A television receiver characterized in that a detection circuit detects the stoppage of operation of a deflection circuit and provides a detection signal to a control circuit to control the oscillation operation of an oscillation transistor.