Constant voltage generation of semiconductor device

Details Constant voltage generation of semiconductor device Constant voltage generation of semiconductor device

1991-09-30

1993-01-19

Heyman, John S.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

3072962, 3072968, H03K 3013

Patent

active

051809281

ABSTRACT:
A constant voltage generator of a semiconductor device includes an oscillator for generating an AC signal, a charge pump for pumping charge from a power voltage supply line by a predetermined pumping ratio in accordance with the AC signal of the oscillator, a charge storage capacitor for storing the pumped charge, and a voltage limiter for limiting the voltage across the charge storage capacitor at a predetermined voltage level, then outputting a constant voltage. According to the present invention, the charge of the storage capacitor is quickly stored, a constant voltage is obtained independent of a power source voltage, and the reference voltage output can be greater than the power source voltage.

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patent: 4705966 (1987-11-01), Van Zanten
patent: 4739191 (1988-04-01), Puar
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patent: 4920280 (1990-04-01), Cho et al.
patent: 5029282 (1991-07-01), Ito
patent: 5072134 (1991-12-01), Min
patent: 5086238 (1992-02-01), Watanabe et al.

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