| 摘要 |
PROBLEM TO BE SOLVED: To provide a transmission output control circuit which prevents fluctuation of a transmission frequency, when transmission output is charged or at the start of transmission, attains speedy start of transmission operation in rising of a power source and prevents the disconnection of a fuse, becomes advantageous for the miniaturization of equipment and can be matched precisely with specifications. SOLUTION: A controlled voltage generating circuit generates a stepwise controlled voltage. The gain of a variable amplifier 30 is varied stepwise with this stepwise controlled voltage, so as to obtain a prescribed gain finally to perform a desired transmission output finally.
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