| 摘要 |
PROBLEM TO BE SOLVED: To obtain a switching regulator, that reduces losses in the switching regulator, and at the same time, has an inexpensive and simple configuration. SOLUTION: While equipment using a switching regulator is at a standby state, the number of turns of an auxiliary coil winding N3 of a transformet T is set, so that the supply voltage of a control IC2 and the drive voltage of a switching element Q1 become 11 V to 13 V, thus reducing the drive loss and the switching loss of the switching element Q1. |
