Peak clipper with an expanded linear characteristic region for v

Details Peak clipper with an expanded linear characteristic region for v Peak clipper with an expanded linear characteristic region for v

1992-08-11

1993-11-30

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307359, 307562, 358 35, H03K 508

Patent

active

052668533

ABSTRACT:
A peak clipper according to this invention contains a differential circuit composed of a first and second p-n-p transistors, the first transistor's base terminal receiving the input signal and the second transistor's base terminal receiving a reference voltage for determining a clipping voltage to clip the input signal at a specified voltage level Connected to the collector of the second transistor is a current mirror circuit composed of a third and fourth n-p-n transistors. The current path of the current mirror circuit is connected to the base of a fifth n-p-n transistor, whose emitter is connected to the base of the second transistor. The reference voltage is changed so as to boost the current driving capability of the second transistor at the beginning of the switching operation at the differential circuit.

REFERENCES:
patent: 4197505 (1980-04-01), Nishijima et al.
patent: 4384219 (1983-05-01), Davis
patent: 4868429 (1989-09-01), Wolber et al.

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