Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1989-11-20
1990-12-18
Miller, Stanley D.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307497, 307352, 307353, 307311, 328127, 328151, 2503381, G06G 712, H03K 5159, H03K 500, G01J 500
Patent
active
049788728
ABSTRACT:
An amplifier circuit 12 for an infrared detector 10 in a detector array formed on a large-scale integrated structure. The amplifier circuit is fabricated along with the detector on the structure and includes an amplifier stage capacitively coupled 14 to the detector 10 and an output stage. A switching FET 16 is provided to selectively couple the detector to an external biasing source and another switching FET 24 is provided to reset the amplifier stage after an integration period. In one embodiment the output stage 28 includes a storage capacitor 30 selectively coupled to the amplifier stage by a switching FET 32. In another embodiment the output encoding stage 28 includes a two-gate FET 32 to control the voltage on a storage capacitor 30. The two-gate FET controls a voltage source which periodically pulses and drains the capacitor. One FET gate is connected to the amplifier stage output and the other is connected to a clocking signal. In still another embodiment the output stage 128 includes a second capacitor 132 of smaller capacitance onto which a charge of the first capacitor 130 proportional to the output of the amplifier stage is placed for subsequent sampling.
REFERENCES:
patent: 3636458 (1972-01-01), Sugiyama et al.
patent: 4313067 (1982-01-01), White
patent: 4439693 (1984-03-01), Lucas et al.
patent: 4578646 (1986-03-01), Maio et al.
patent: 4786831 (1988-11-01), Morse et al.
Gaalema Steve D.
Hewitt Mary J.
Keimel Ingrid M.
Morse Arthur L.
Denson-Low Wanda K.
Hughes Aircraft Company
Miller Stanley D.
Phan Trong Quang
Streeter William J.
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