Patent ID: 7872883

Claim:
A power converter system comprising: a switching circuitry having a plurality of switches operable to be turned on and off to cause current to flow to deliver power to a load; a driver circuitry responsive to an oscillation signal and operable to generate control signals for turning on and off the switches in the switching circuitry; and a free-running oscillator circuitry operable to provide the oscillation signal to the driver circuitry, the free-running oscillator circuitry having an operational amplifier, wherein a frequency of the oscillation signal will be higher if the operational amplifier outputs a first value, and wherein the frequency of the oscillation signal will be lower if the operational amplifier outputs a second value; wherein the free-running oscillator circuitry comprises a timing capacitor coupled to the driver circuitry, the timing capacitor operable to be charged and discharged for providing the oscillation signal, wherein the charging and discharging of the timing capacitor is responsive to the output of the operational amplifier.