Output controlling method esp. for time-division multiplex transmitter

摘要

The control method includes a control unit (6) which is responsive to signals (10) from a comparator (9) of the absolute voltage drop sustained by a capacitor (1), or the rate of drop, during a burst of emission from the output stage (4) with a predetermined limit. If the limit is exceeded a command (7) is generated which varies the gain applied to the input high-frequency signal (5). The rate of voltage decline may be measured using a capacitor as a differentiating element. The measurement may be made during two intervals of emission, with counter-measures taken only if the limit is exceeded in both instances.