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Parabolic control of the duty cycle of a pulse width modulated signal

  • US 20040232869A1
  • Filed: 05/19/2003
  • Published: 11/25/2004
  • Est. Priority Date: 05/19/2003
  • Status: Active Grant
First Claim
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1. A system, comprising:

  • a PWM generator configured to generate a PWM (Pulse Width Modulated) signal having a duty cycle, wherein the PWM generator is configured to generate the duty cycle of the PWM signal dependent on a duty cycle value; and

    control logic coupled to the PWM generator and configured to store an inverse focal point value, wherein the control logic is configured to generate the duty cycle value by processing the inverse focal point value and a temperature value indicating a current temperature according to an equation of a parabola.

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