Precision Dynamic Over-Current Sensing in a Power Supply Using Laser Active Trimming
Original Publication Date: 1980-Apr-01
Included in the Prior Art Database: 2005-Feb-13
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.