Voltage variable integrated circuit capacitor and bootstrap driv

Details Voltage variable integrated circuit capacitor and bootstrap driv Voltage variable integrated circuit capacitor and bootstrap driv

1977-06-29

1980-03-04

Zazworsky, John

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

307320, 307215, 307270, 357 14, H03K 1908, H03K 1936, H01L 2992

Patent

active

041918991

ABSTRACT:
An integrated circuit junction capacitor is formed using conventional bipolar transistor technology. Voltage variable capacitance is provided by a reverse biased emitter-base junction and parasitic collector-base capacitance is isolated from the emitter-base capacitance by maintaining the base-collector junction in a reverse biased condition. A bootstrapped driver circuit is also described in which bootstrap current is provided by a transistor-like structure in which an internal load capacitance enables circuit performance to remain substantially constant under various driven load conditions.

REFERENCES:
patent: 3654498 (1972-04-01), Chapron

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