Power supply method based on special coil of active electronic transformer

The power supply method based on special coil is especially studied, and two different design projects are put forward and realized. Firstly, the relation between coil turns and minimal starting current is revealed, and the measures to improve the minimal starting current are presented. And the corresponding hardware of two projects is finished, and the characteristic of different projects is illustrated. At last, the test of two different projects is carried out respectively. Results show that the better method could provide 590 mW power when the minimal starting current is less than 12 A. Thus the research result will provide powerful support for the design of high voltage side circuit of active electronic transformer.