Mithun_K_Das
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I'm using LM317 to get 5V output from 56Vinput ( Serised with a 220R/5W resistor), R1=330R & R2 = 1K as calculation. But output voltage is always 20~25VDC. what is the problem?
I also used LM7805 for this purpose with a seriesed resistor of 470R/5W with input. But excessive heat created at only 70mA load current. Solution??
I also used LM7805 for this purpose with a seriesed resistor of 470R/5W with input. But excessive heat created at only 70mA load current. Solution??