Patent ID: 9106146
Filing Date: 2015-08-11
Classification: H02M,Y02B

Abstract:
1. An energy-saving control device, which connects with an integrated circuit (IC) and a secondary winding of a transformer, and a primary winding of said transformer connects with an N-channel metal oxide semiconductor field effect transistors (NMOSFET), receives and stores energy when said NMOSFET is turned on, and then said energy is discharged from said secondary winding and an energy signal of said energy comprises a high-frequency part and a low-frequency part thereafter, and said low-frequency part and said high-frequency part respectively occupies a first time duration and a second time duration, characterized in that said low-frequency part appears during said NMOSFET is turned off, and that said energy-saving control device receives said energy signal to control an operation of said IC according to a ratio of said first time duration to said second time duration.