DIODE STACK HIGH VOLTAGE REGULATOR

DIODE STACK HIGH VOLTAGE REGULATOR

A high voltage regulator including a current mirror including a pair of transistors, one of the transistors being connected to a node that outputs an output voltage Vout, a diode stack that includes a plurality of serially connected transistors T0, T1, T2, . . . Tn, wherein the transistor T1 is conn...

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Hauptverfasser: KUSHNARENKO ALEXANDER, DADASHEV OLEG
Format: Patent
Sprache:eng
Schlagworte:
CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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creator KUSHNARENKO ALEXANDER
DADASHEV OLEG
description A high voltage regulator including a current mirror including a pair of transistors, one of the transistors being connected to a node that outputs an output voltage Vout, a diode stack that includes a plurality of serially connected transistors T0, T1, T2, . . . Tn, wherein the transistor T1 is connected to a node n0, to which is connected another transistor T0 that receives an input bias voltage Vbias, and wherein a feedback voltage fb from node n0 is fed to an input of the differential amplifier, the differential amplifier receiving an input reference voltage Vref at one of its other inputs, and is also connected to positive voltage supply Vdd, the differential amplifier outputting to an NMOS transistor M, and wherein the high voltage regulator has a large diode stack gain and lower GDA*GNMOS*m, resulting in a generally constant feedback (loop) gain Gloop wherein the loop gain is given by: Loop Gain=Gloop=Gstack*GDA*GNMOS*m wherein m is the ratio of the two currents I1 and I2, that is, I2=mI1, Gstack is the gain of the diode stack, GDA is the gain of the differential amplifier and GNMOS is the gain of the NMOS transistor M.
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subjects CONTROLLING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
title DIODE STACK HIGH VOLTAGE REGULATOR
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