JPS59152848U

JPS59152848U - power control circuit

Info

Publication number: JPS59152848U
Application number: JP1983044324U
Authority: JP
Inventors: 貞夫松村
Original assignee: 株式会社東芝
Priority date: 1983-03-29
Filing date: 1983-03-29
Publication date: 1984-10-13

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 drawings]

第１図は従来の無人中継局の系統図、第２図は本考案の
一実施例の系統図である。１１・・・受信アンテナ、１２・・・送信アンテナ、２
１・・・受信機、２２・・・送信機、３１・・・電源、
４１・・・電源スィッチ、４２・・・電源スィッチ、２
０・・・受信障害警報端子、５０・・・電源制御回路、
５１・・・遅延回路；５２・・・電源スイツチ接点駆動
回路、５３・・・Ｗスイッチ接点。FIG. 1 is a system diagram of a conventional unmanned relay station, and FIG. 2 is a system diagram of an embodiment of the present invention. 11... Receiving antenna, 12... Transmitting antenna, 2
1... Receiver, 22... Transmitter, 31... Power supply,
41...Power switch, 42...Power switch, 2
0... Reception failure alarm terminal, 50... Power supply control circuit,
51... Delay circuit; 52... Power switch contact drive circuit; 53... W switch contact.

Claims

[Scope of utility model registration request]

In a power supply control circuit provided in a relay station that has a receiver that receives a signal from a preceding station, a transmitter that transmits the signal received by the receiver to a subsequent station, and a power source, the presence or absence of a signal received from the receiver is detected. a delay circuit that receives a signal corresponding to the received signal and outputs a signal delayed by a predetermined time at the point of change of the received signal from presence to absence; and an output of the delay circuit that is inserted into a power supply path from the power supply to the transmitter. A power supply control circuit characterized by comprising a switch whose opening and closing are controlled by a signal.