Filter-rectifier unit providing adjustable direct current voltages from three-phase supply, is separately designed and encased, for inclusion in other equipment

摘要

Mains supply filter (2) and rectifier (3) are contained in a casing (1). The unit is an independent component with input terminals (11-14) for connection to the three-phase supply network, and output terminals (15-17) for connection to electrical equipment. Fastening points included, are for attachment onto or within electrical equipment. The filter contains a choke and capacitor network, on the same circuit board as the rectifier circuit. The DC output voltages are adjustable and several rectifiers may be included.