Hello Everyone >>
I need to make a charger for 9 volt battery , have a circuit but want some help about resistor of regulator ..
<snip>
my questions on :
1) R1 ,R2 ,R3 values to make a regulator work and also with transistor to make a LED On if it still charging and Off if it fully charging if the battery capacity is 175 NiMH
2) If I'll use lm317 what changes in the circuit ?
and finally please write the equations you have used to find Resistors values to apply it if I have changes ..
thanks
I need to make a charger for 9 volt battery , have a circuit but want some help about resistor of regulator ..
<snip>
my questions on :
1) R1 ,R2 ,R3 values to make a regulator work and also with transistor to make a LED On if it still charging and Off if it fully charging if the battery capacity is 175 NiMH
2) If I'll use lm317 what changes in the circuit ?
and finally please write the equations you have used to find Resistors values to apply it if I have changes ..
thanks
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