Circuit Diagram Battery Charger Using Scr. 15 volts per each battery. There is also a trickle charge mode circuitry which will help to reduce the current when the battery is fully charged.
The voltage regulator used here is 7815 which is a 15v regulator. The step down voltage is given to the scr for rectification and scr rectifies ac main voltage. It is solid state equivalent of gas filled triode and has around four semi conductor layers.
If the circuit built and setup correctly it will safely charge at 10 amps and automatically regulate down to a trickle charge.
This hinders the forward biasing voltage from arriving at the base of the transistor q1 through r4 and d2. Thus scr1 conducts from p to r as shown in figure and charges 12 volt battery connected in the circuit. This charger cant be used as a power supply without having a battery in place. Circuit diagram for voltage regulator using scr fuse electrical wikipedia scr dc motor speed control circuit using ic cmos semiconductor and integrated circuit devices 12v battery charger circuit with auto cut off circuits testing electronic components led dimmer circuit circuit diagram syllabus b sc electronics chhatrapati shahu ji.