2results about How to "Reduce no-load power consumption" patented technology

The present application relates to the technical field of power electronic control, and discloses a split-phase inverter with low no-load power consumption, a control method thereof and a storage medium, wherein a group of complementary switching tubes is arranged on the AC side and a group of high-frequency switching tubes is arranged on the DC side, so that the complementary switching tubes and the high-frequency switching tubes are controlled to emit waves in a first wave-emitting mode when the split-phase inverter is in a starting state, thereby reducing the reactive circulating current of the split-phase inverter and reducing the no-load power consumption of the split-phase inverter; meanwhile, when the real-time output current of the split-phase inverter is greater than or equal to a first current threshold, the complementary switching tubes and the high-frequency switching tubes are switched to emit waves in a second wave-emitting mode, thereby ensuring that the split-phase inverter can be normally loaded; compared with the related prior art, the split-phase inverter can not only solve the problem of high no-load power consumption, but also does not need large-current switching tubes or large radiators, has a smaller product size, a high power density and a lower cost.

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.