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Precision Dynamic Over-Current Sensing in a Power Supply Using Laser Active Trimming

IP.com Disclosure Number: IPCOM000054757D
Original Publication Date: 1980-Apr-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Related People

Authors:
Holloway, JF Riggio, SR [+details]

Abstract

In many Power supplies such as that shown in Fig. 1, over-current sensing is used to simply shut-down the system when the output reaches a given level of current. This is known as static over-current limiting and is not precise. Manual intervention is required to correct the problem and bring the system back to an acceptable running status.