JJW series of AC purifying regulated Power Supply,incorporating functions of regulation and anti-interference,designed and manufactured according to advanced technology,is widely used in computers,x-ray systems,video equipments, medical instruments and other electronic instruments and auto control systems for its wide range of regulating,high precision,quick acting,high efficiency,small size and weight,Good performance to load,reliable operation and it can restrain sharp voltage and protect from nice of electric power net.