so im trying to design a simple trickel charger for a 4.8v 7.95Ah NiMH battery pack powered by a wall wart. im shooting for 5v at about 200mA. im doing this on multisim first to work out any bugs. it doesnt seem to wanna work the way i want it. im using 2 LM317 regulators. one as an adjustable voltage regulator and the second as a current regulator.one thing i dont get is, the LM317 constant current is sposed to keep constant current at whatever load, but its not working that way. ive been playing around with different value pots and resistors. any help or advice is appreciated!
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