Patent ID: 6781353
Filing Date: 2004-08-24
Classification: H02M

Abstract:
An integrated converter circuit comprising:a first switch that turns on with a first value of a control signal to generate a coil current at a node when an output voltage of the integrated converter circuit is greater than a first reference voltage; a second switch coupled to the node and turning on with a second value of the control signal to generate the coil current when the output voltage is less than the first reference voltage, wherein the coil current is discharged through the second switch to an output of the integrated converter circuit to develop the output voltage; a first comparator having a first input for sensing the output voltage, a second input receiving the first reference voltage and an output for providing the control signal; and a second comparator having a first input for sensing the output voltage, a second input receiving a second reference voltage and an output coupled for enabling the first and second switches.