1results about How to "Reduce no-load power consumption" patented technology

The application discloses a feedback circuit and an isolated switching power supply applying the same. By making the photocoupling feedback current and the load current have the same variation trend, the photocoupling feedback current is very small or even zero at light load and no load, so as to reduce or eliminate the loss caused by the photocoupling feedback current at light load and no load, and greatly reduce the light load and no load power consumption of the whole machine.