JPS6316686U

JPS6316686U -

Info

Publication number: JPS6316686U
Application number: JP11085786U
Authority: JP
Priority date: 1986-07-18
Filing date: 1986-07-18
Publication date: 1988-02-03

Description

[Brief explanation of the drawing]

図示した回路は、本考案の制御回路の一実施例
である。主な図番の説明、１……電池、３……ラジオ受
信回路、４……テープレコーダー回路、５……操
作回路、１１……終端検出回路、１３……第１切
換回路、１５……第２切換回路、２０……時計用
電池、２１……タイマー回路、２３……電源供給
用トランジスター、２５……トリガー用トランジ
スター、２７……保持用トランジスター、２９…
…第１制御トランジスター、３１……第２制御ト
ランジスター、３３……録音切換信号発生回路。 The illustrated circuit is one embodiment of the control circuit of the present invention. Explanation of main figure numbers, 1... Battery, 3... Radio receiving circuit, 4... Tape recorder circuit, 5... Operation circuit, 11... Termination detection circuit, 13... First switching circuit, 15... Second switching circuit, 20...Watch battery, 21...Timer circuit, 23...Power supply transistor, 25...Trigger transistor, 27...Holding transistor, 29...
...First control transistor, 31...Second control transistor, 33...Recording switching signal generation circuit.

Claims

[Scope of utility model registration request]

A tape recorder with a radio that has a built-in radio receiving circuit and uses a battery as a power source includes a timer circuit operated by a clock battery provided separately from the battery, and an output signal of the timer circuit. A trigger transistor that becomes conductive for a short time when the trigger transistor is turned on, and a power supply that is reversed to a conductive state by the conduction of the trigger transistor and supplies power from the battery to the radio receiving circuit and tape recorder circuit when it is in the conductive state. a transistor; a holding transistor that becomes conductive by inverting the power supply transistor to a conductive state and maintains the power supply transistor in a conductive state;
an operating circuit that is operated by the output signal of the timer circuit and outputs a switching signal to put the tape recorder in a recording mode; and an operating circuit that is connected to control the operation of the holding transistor and that detects the end of the magnetic tape. and a control transistor that becomes conductive and inverts the holding transistor to a non-conductive state during the accompanying return operation to the stopped state, and inverts the power supply transistor to a non-conductive state by inverting the holding transistor to the non-conductive state. 1. A control circuit for a tape recorder with a radio, characterized in that the power supply to the radio receiving circuit and the tape recorder circuit is cut off.