Db Power Electronics [P] Ltd. Offers Synergy INV. The Db Power Electronics [P] Ltd. Is an ISO 9001-2000 certified company. The product is available with 48 V DC single phase input and a three phase output. The ratings of the product include 3, 7.5, 10, 15, 20 kVA. The Synergy INV is designed for telecom applications. The product complies with the stringent requirements of EMI/EMC interferences, drafted by Telecom Authorities.