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

Claim 0:
1. A method of regulating an output voltage of a switched mode power supply having a variable input voltage and at least one power switch, the method comprising:
generating a control signal for the 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;
generating an output signal based at least in part on a comparison of the duty cycle of the control signal with a maximum duty cycle;
comparing the output signal with a comparison value;
generating a delta reference voltage signal based on the comparison of the output signal with the comparison value;
generating a reference voltage based on a comparison of the delta reference voltage signal with a maximum output voltage reference signal; and
generating the control voltage based at least in part on the reference voltage and the output voltage of the switched mode power supply;
wherein generating the delta reference voltage signal comprises setting 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 generating the delta reference voltage signal comprises setting the delta reference voltage signal equal to zero based on the difference between the output signal and the comparison value being less than zero.