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CURRENT BALANCING, CURRENT SENSOR, AND PHASE BALANCING APPARATUS AND METHOD FOR A VOLTAGE REGULATOR

  • US 20190154739A1
  • Filed: 01/22/2019
  • Published: 05/23/2019
  • Est. Priority Date: 03/15/2013
  • Status: Active Grant
First Claim
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1. An apparatus comprising:

  • a first p-type transistor coupled to a power supply rail to provide an input power supply voltage and current, wherein the first p-type transistor is controlled by a first switchable signal;

    a second p-type transistor coupled in series with the first p-type transistor, wherein the second p-type transistor is biased by a first bias;

    a first n-type transistor coupled in series with the second p-type transistor, wherein the first n-type transistor is biased by a second bias;

    a second n-type transistor coupled to series with the first n-type transistor, wherein the wherein the second p-type transistor is controlled by a second switchable signal, wherein the a second n-type transistor is coupled to ground;

    a plurality of drivers to drive pulse width modulated (PWM) signals as the first and second switchable signals; and

    a modulator to generate one or more PWM signals as input to the plurality of drivers.

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