Voltage regulator capable of lowering voltage applied across pha

Details Voltage regulator capable of lowering voltage applied across pha Voltage regulator capable of lowering voltage applied across pha

1999-05-07

2000-04-11

Tso, Edward H.

Electricity: power supply or regulation systems

Output level responsive

Using a three or more terminal semiconductive device as the...

323281, G05F 140

Patent

active

060492007

ABSTRACT:
There is provided a voltage regulator capable of lowering a voltage applied across a phase compensating capacitor even at the time of a high voltage output and of reducing an area of the phase compensating capacitor by forming it with a thin insulating film. Phase compensating circuit 61 included in the voltage regulator comprises phase compensating capacitor C1, P-channel MOS transistor P1, N-channel MOS transistor N2 and voltage generating circuit 71 for generating a constant voltage. When gate-source voltages of P-channel MOS transistor P1 and N-channel MOS transistor N2 are Vgs(N2) and Vgs(P1), respectively, a voltage applied across capacitor C1 becomes Vgs(N2)+Vgs(P1) regardless of an input voltage applied to input terminal 1, and is suppressed to low.

REFERENCES:
patent: 5686820 (1997-11-01), Riggio, Jr.

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