Limiter circuit

Details Limiter circuit Limiter circuit

1976-11-11

1978-04-18

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

330207P, 361 91, H03G 330

Patent

active

040854310

ABSTRACT:
In a limiter circuit, a signal which has its level manually adjusted is supplied to, in turn, a recording amplifier, a signal divider composed of resistors, the base-emitter junction of an emitter follower transistor used as a signal rectifier, and a capacitor connected between the ground and a signal limiting transistor. The emitter follower transistor biased by the signal divider is only made conductive by the signal when the latter is over a predetermined level so that the limiter operation is as free of reducing the dynamic range as is a manual recording operation without the conventional AGC circuit since it acts only for excessively high level pulse-like input signals.

REFERENCES:
patent: 3835401 (1974-09-01), Tomita et al.

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