Radiant energy – Photocells; circuits and apparatus – Photocell controlled circuit
Patent
1988-10-12
1990-03-06
Nelms, David C.
Radiant energy
Photocells; circuits and apparatus
Photocell controlled circuit
2503381, H01J 4014
Patent
active
049068342
ABSTRACT:
A circuit for an infrared detector includes a field effect transistor and a gate resistor connected thereto. A current-limiting component, preferably an ohmic resistor, is connected in series with the detector element between the gate of the field effect transistor and ground, to limit the current across the pn junction of the field effect transistor.
REFERENCES:
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patent: 4441023 (1984-04-01), Doctor et al.
patent: 4620321 (1986-10-01), Chown
patent: 4688267 (1987-08-01), Chown et al.
patent: 4750217 (1988-06-01), Smith et al.
patent: 4755674 (1988-07-01), Schaaf
patent: 4808810 (1989-02-01), Van Doorn
"Pyroelectric Infrared Detectors", Rose, Electronic Components and Applications, vol. 4, No. 3, May 1982, pp. 142-149.
Quad Reiner
Ringelstein Udo
Heimann GmbH
Nelms David C.
Oen William L.
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