Patent ID: 11923779
Assignee: ASTEC INTERNATIONAL LIMITED
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A switched mode power supply comprising a power circuit and a control circuit, wherein the control circuit is configured to:
generate a control signal for at least one power switch of the switched mode power supply based at least in part on a control voltage, the control signal having a duty cycle;
generate an output signal based at least in part on the duty cycle of the control signal and a maximum duty cycle;
compare the output signal with a comparison value;
generate a delta reference voltage signal based on the comparison of the output signal with the comparison value;
generate a reference voltage based on a comparison of the delta reference voltage signal with a maximum output voltage reference signal; and
generate the control voltage based at least in part on a difference between the reference voltage and an output voltage of the switched mode power supply;
wherein the control circuit, in being configured to generate the delta reference voltage signal, is configured to set the delta reference voltage signal equal to a difference between the output signal and the comparison value based on the difference being greater than zero; and
wherein the control circuit is further configured to set the delta reference voltage signal equal to zero based on the difference between the output signal and the comparison value being less than zero.