6 Volt Battery Charger Circuit Diagram Without Transformer. The current can be found 7ma current for 0 1uf capacitor. Low voltage dc like 5v 6v 9v 12v is used in electronics circuits led bulbs toys and many household electronics items generally batteries are used to power them but they need to be replaced time to time which is not cost effective and also takes our time energy.
It s really great but it will be better if you add a relay for battery output i mean that like backup batteries it can have an output from battery and a series relay to stop discharging battery when led2 glows and don t let the battery deeply discharge. Potentiometer r5 can be used to set the. Here is a lead acid battery charger circuit using ic lm 317 the ic here provides the correct charging voltage for the battery a battery must be charged with 1 10 its ah value this charging circuit is designed based on this fact the charging current for the battery is controlled by q1 r1 r4 and r5.
Generating low voltage dc from the 220v or 110v ac mains is very useful and necessary in the field of electronics.
If you are talking about the circuit current limited 6 v charger both circuits are same. But enough open sw1 as a result use charging battery 12 v get. By change with switch only and this circuit charging with current about 1amp. You are right about using ve voltage to starting npn working but working here means dropping the ref voltage to stop charging the battery.
