摘要:
First and second radiation-compensated differential amplifiers are each connected to receive different low level input signals. The outputs of the differential amplifiers are fed into a third amplifier through buffer stages. Switching circuitry is provided to selectively actuate either of the first or second amplifiers to exclusively feed signals into the third amplifier.
摘要:
The disclosure is directed to electronic multivibrator circuits utilizing two pairs of series connected complementary transistors, with the bases of each of the transistors being cross-coupled to the juncture point of the transistors of the opposite pair. A monostable multivibrator is provided which has the base of one of the transistors coupled through a resistance to ground potential, and includes a normally non-conductive transistor connected to receive a triggering signal for initiating a mono-stable timing period. A bistable multivibrator is provided which includes triggering transistors connected across symmetrical portions of the circuitry for receiving set and reset triggering signals to control the bistable operation of the circuit. A free-running multivibrator is provided which includes resistive current paths from two of the transistor bases to ground potential for generation of a periodic pulse train output upon the application of electrical power.
摘要:
The disclosure is directed to electronic multivibrator circuits utilizing two pairs of series connected complementary transistors, with the bases of each of the transistors being cross-coupled to the juncture point of the transistors of the opposite pair. A monostable multivibrator is provided which has the base of one of the transistors coupled through a resistance to ground potential, and includes a normally non-conductive transistor connected to receive a triggering signal for initiating a monostable timing period. A bistable multivibrator is provided which includes triggering transistors connected across symmetrical portions of the circuitry for receiving set and reset triggering signals to control the bistable operation of the circuit. A free-running multivibrator is provided which includes resistive current paths from two of the transistor bases to ground potential for generation of a periodic pulse train output upon the application of electrical power.