POWER SOURCE OF TELEVISION BROADCAST SIGNAL TRANSMITTER AND TELEVISION BROADCAST SIGNAL TRANSMITTING SYSTEM

摘要

The disclosed power source of a television broadcast signal transmitter supplies a DC voltage to a transmitter provided on a transmission line of a television broadcast transmission system, and is provided with: a normally open-type relay switch which allows or blocks conduction in a power supply route between a power plug and a power supply circuit; a charging means which receives power from the power supply circuit and charges an accumulator; a normally open-type switching element which allows or blocks conduction in a conduction route through which current flows to the relay coil by means of the power accumulated in the accumulator; a drive circuit which turns on the switching element when a prescribed control signal is inputted via the transmission line; and an operation switch for allowing conduction in the power supply route by means of external operation.