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Safety Circuit for UPS disconnect problem

IP.com Disclosure Number: IPCOM000013050D
Original Publication Date: 2001-Aug-26
Included in the Prior Art Database: 2003-Jun-12

Publishing Venue

IBM

Abstract

Disclosed is a safety circuit for the uninterruptible power supply (UPS) which cut off the leakage voltage to the AC plug. The uninterruptible power supply (UPS) with load unit has the leakage voltage to the AC plug after disconnected it from utility line. This voltage is frequently dangerous for operator when disconnected the AC plug and touched it. Fig. 1 is the diagram of solution is to add the safety circuit 4 between AC plug 3 for utility line 2 and the general UPS logic 7. 1 UPS with the safety circuit 4 Additional safety circuit