Pulsed light signal receiver

Details Pulsed light signal receiver Pulsed light signal receiver

1976-12-22

1978-06-13

Murray, Richard

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

H04B 900

Patent

active

040950972

ABSTRACT:
A pulsed light signal receiver comprises a photo-sensitive transistor having a base and a collector and an emitter; a load resistance in the collector circuit and a constant current device in the emitter circuit. A capacitor shunting the constant current device over a predetermined range of signal frequencies renders the transistor gain high for such frequencies. The constant current device may be a field effect transistor with its gate at ground potential and a resistance in the source to ground circuit selected to determine the idling current of the FET and provide thermal stability for the photo-transistor circuit. A low impedance, balanced-to-neutral, output is provided.

REFERENCES:
patent: 3657543 (1972-04-01), Rose
patent: 3902060 (1975-08-01), Neuner et al.

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