This paper deals with digital control of a series

active filter integrated with a diode rectifier where the series

active fdter is controlled to function as a current source.

A predictive current regulator is considered for the series ac-

tive filter to achieve good ripple characteristics and predictable

switching losses. The operating conditions, and the effect

thereof on the current regulator are considered and oversam-

pling and prediction of the load voltage is suggested to improve

the active filtering performance without increasing the switching

frequenc-This　paper　deals with digital control　of a　series

active　filter　integrated　with　a　diode rectifier　where the　series

active fdter is　controlled to function as　a　current source.

A　predictive current regulator　is　considered for the　series ac-

tive　filter to　achieve good　ripple　characteristics and predictable

switching　losses.　The　operating　conditions,　and　the　effect

thereof　on the　current regulator　are　considered and　oversam-

pling and　prediction of　the load　voltage　is　suggested to　improve

the　active filtering performance without increasing the　switching

frequenc