Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1993-04-01
1994-10-04
Callahan, Timothy P.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307261, 307362, 307310, 307492, 307503, 328145, H03F 345
Patent
active
053529448
ABSTRACT:
A circuit particularly useful in AGC systems, produces an output current which is proportional to the difference between a signal voltage and a reference voltage which is practically independent of temperature. By being a function of a ratio among actual values of integrated resistances and of a ratio among substantially temperature-stable voltages. The effects of temperature dependent value of integrated resistances and of temperature-dependent electrical characteristics of integrated semiconductor devices are compensated in order to produce the desired temperature-independent output current which may usefully be utilized for implementing an automatic gain control.
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Moloney David
Sacchi Fabrizio
Vai Gianfranco
Zuffada Maurizio
Callahan Timothy P.
Cunningham Terry D.
SGS--Thomson Microelectronics S.r.l.
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