Patent ID: 11909301
Assignee: SILERGY SEMICONDUCTOR TECHNOLOGY (HANGZHOU) LTD
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 7:
8. An intermittent power saving mode control circuit, wherein the control circuit is configured to:
control a switching power supply to operate alternately between a work mode and a sleep mode under a burst mode;
control the switching power supply to operate in the sleep mode according a first reference voltage, the first reference voltage is constant;
control the switching power supply to operate in the work mode according to a second reference voltage;
monitor an alternating frequency of the switching power supply in the burst mode, wherein the alternating frequency is a frequency value that changes from a current work mode to a next work mode or from a current sleep mode to a next sleep mode, wherein in the work mode, a power switch of the switching power supply is periodically turned on and turned off and in sleep mode, the switching power supply remains off; and
adjust the second reference voltage according to the alternating frequency, so that the alternating frequency is within a range of a first frequency to a second frequency.