CMOS voltage regulator with diode-connected transistor divider c

Details CMOS voltage regulator with diode-connected transistor divider c CMOS voltage regulator with diode-connected transistor divider c

1997-11-05

1998-07-21

Wong, Peter S.

Electricity: power supply or regulation systems

Self-regulating

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

323315, G05F 316, G05F 304

Patent

active

057839344

ABSTRACT:
The voltage regulator of the present invention is configured in a negative feedback operational amplifier loop with diode connected p-MOS devices serving as a resistor divider to reduce the current loading to the voltage multiplier. Each diode connected p-MOS has its own well tied to its source so the VGS (gate to source voltage) of each p-MOS is precisely mirrored across the diode chain by the negative feedback action. This gives a precise voltage at the output of the regulator referenced to a reference voltage VREF. The regulator uses very little current without requiring large value resistors by utilizing the diode connected p-MOS transistors as a resistor divider.

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