Showing posts with label source. Show all posts
Showing posts with label source. Show all posts
Saturday, January 11, 2014
Safe Constant Current Source Circuit Diagram
In the Safe Constant Current Source Circuit Diagram shown, a CMOS op amp controls the current through a p-channel HEXFET power transistor to maintain a constant voltage across RL The current is given by: 1 ~ VREF/Rl. The advantages of this configuration are: (a) in the event of a component failure, the load current is limited by Rl; and (b) the overhead voltage needed by the op amp and the HEXFET is extremely low.
Safe Constant Current Source Circuit Diagram
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