Showing posts with label lm317. Show all posts
Showing posts with label lm317. Show all posts
Tuesday, September 2, 2014
Universal Power Supply Circuit with IC LM317
This circuit is universal power supply , you can use this circuit to supply . On the IC you can adjustable regulator provides short circuit protection and automatic voltage adjust . The input voltage to the circuit regulator is supplyed by AC 220 V / 110 V and down voltage by transformator then rectified by bridge diode . And output voltage is clear and stabilized .
Wiring a second LM317 , U2 , in parallel with U1 is a quick and clean way to increase the current limiting threshold to 3A without sacrifing short-circuit protection.When more than 3A is required , the regulator module can be used to drive the base of one or more pass-transisotrs.
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