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PULSE CONTROLLED SOFT START SCHEME FOR BUCK CONVERTER

  • US 20090315530A1
  • Filed: 06/18/2008
  • Published: 12/24/2009
  • Est. Priority Date: 06/18/2008
  • Status: Abandoned Application
First Claim
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1. A system for generating a ramped reference voltage to soft start a buck converter, comprising:

  • a current source coupled to a positive power supply;

    a capacitor coupled to a ground; and

    a switch coupled to the current source and the capacitor in series,wherein the ramped reference voltage is a voltage formed across the capacitor; and

    wherein the switch is regulated by a control pulse to direct a flow of a current from the current source for generating a pulsed current forwarded to the capacitor.

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