Amplifiers – Having light-controlled or activated device
Patent
1986-01-10
1986-12-02
Wan, Gene
Amplifiers
Having light-controlled or activated device
250214A, H03F 1700, H01J 4014
Patent
active
046267930
ABSTRACT:
A receiver amplifier for amplifying a photoelectric current produced by a light-sensitive semiconductor component. The amplifier includes an amplifier transistor, a capacitor connected between the light-sensitive conductor component and the amplifier transistor for isolating signals with a frequency below a certain threshold delivered by the semiconductor components from the amplifier transistor, and a second transistor connected to the amplifier transistor for producing a current which compensates for changes in the current produced by the light-sensitive semiconductor component in response to light pulses.
REFERENCES:
patent: 3891319 (1975-06-01), Meinke
patent: 3902060 (1975-08-01), Neuner
M. Cappa, "High Sensitivity, Wide Range Photo-Amplifier", IBM Tech. Dis. Bulletin, vol. 21, No. 8, pp. 3115-3116, Jan. 1979.
Electronikpraxis, No. 7, Jul. 1980, pp. 26-28.
Pitsch, "Lehrbuch der Funkempfangstechnik, Akademischer Verlags Ges. Geest und Portig KB," Leipzing 1948, pp. 492 and 493.
Militzer Karl
Moser Helmut
Telefunken electronic GmbH
Wan Gene
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