Patent ID: 11929677
Assignee: PSEMI CORPORATION
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 19:
20. A method for controlling a power converter controlled by a pulse-width modulation (PWM) control signal, the method including:
(a) generating up and down count direction signals as a function of a signal representative of an output voltage of the power converter;
(b) comparing a target output voltage to a signal representative of the output voltage of the power converter;
(c) indicating an under-shoot condition if the difference between the compared voltages exceeds a first offset value and indicating an over-shoot condition if the difference between the compared voltages exceeds a second offset value;
(d) providing the up and down count direction signals as inputs to a counter configured to output an M-bit digital count value in response to the provided up and down count direction signals; and
(ee) limiting a range of values for the M-bit digital count value used to generate the PWM control signal as a function of the under-shoot condition and over-shoot condition indications.