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Feedback-controlled body-bias voltage source

  • US 8,436,675 B2
  • Filed: 01/11/2010
  • Issued: 05/07/2013
  • Est. Priority Date: 12/23/2003
  • Status: Active Grant
First Claim
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1. A system comprising:

  • first circuitry operable for generating an output voltage;

    second circuitry coupled to said first circuitry and operable for adjusting said output voltage in response to a control signal by providing a discharge path for said output voltage if enabled; and

    an output monitor coupled to said first circuitry and operable for comparing said output voltage and a reference voltage and operable for generating said control signal based on a result of said comparing, wherein said control signal has a state that is proportional to an amount of difference between said output voltage and said reference voltage, wherein said output monitor is further operable for enabling said first circuitry in response to sensing an undervoltage condition, and wherein further an amount of voltage discharged via said second circuitry is configured to be proportionally controlled according to said state of said control signal.

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