The experiment shows power factor of the rectifier is approximate to 1 and the inductance of the DC filter is decreased greatly by applying the new PWM control method.

EFD series power transformers and inductors are mostly used in the drive circuits of computer, lighting fixture, meters and equipments products' feature: high stability and reliability.

The unit block is used to produce cores applied to an active filter for PFC, a three-phase line reactor, or an inductor for automotive electronics.