Easy many circuits using transistor, IC and FET you can learn sometimes you may use them!
Normally battery Charger Circuit, will use the way gives Stabised Current or stable current. For this circuit also the integrated circuit LM723 and electronic parts a few with follow the…
Here is Universal nicd and nimh battery charger circuit. It use IC LM317T ( Hot IC) Control Current less 300mA, Size battery 2.4V,4.8V,9.6V. Low cost circuit
This is a FET Constant current drivers circuit for drive LED display which can use FET-BF256 instead resistor so well, can wide voltage source.
This is IC 7805 constant current circuit for battery charger, It is advantage that we have IC- 5-volts 1A positive voltage regulator as current regulation