| 摘要 |
A first output transistor, operated in the common emitter mode, has its conduction path connected between an output terminal and a first point of operating potential. A phase splitting transistor whose base is coupled to a signal input terminal supplies a turn-on current to the base of the first transistor for one value of input signal and interrupts the flow for another value of input signal. The discharge of residual charge on the base of the first transistor and its speedy turn-off is accomplished by means of a clamping transistor whose collector-to-emitter path is connected between the base and emitter of the first transistor and which is turned on concurrently with the turn-off of the phase splitting transistor.
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