Class B clamp circuit

Details Class B clamp circuit Class B clamp circuit

1987-12-21

1988-12-13

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307546, 307549, 307562, H03K 508

Patent

active

047913258

ABSTRACT:
An integrated circuit is disclosed having an output coupled to a capacitive load for sourcing or sinking current at said output to charge or discharge the load accordingly to a fixed voltage established by the circuit. The circuit includes an NPN transistor push-pull output stage and first and second current mirrors coupled to the push-pull output stage for establishing feedback in order to set a small quiescent current flow in the output stage. A NPN transistor having its collector-emitter conduction path coupled to the collector of the upper one of the NPN transistors provides the dynamic current thereto when turned on to provide the sourcing current flow through the latter.

REFERENCES:
patent: 4644198 (1987-02-01), Ahmed

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