- My circuit circuit is below so you can understand what I'm saying.
- I want to make a lead battery charger that can control the charging voltage and current (no discharge.) I have a circuit that measures both that works, so thats not a problem.
- In the circuit I posted you can see that I use a two diode full wave rectifier. It is done with a center tapped transformer. This center tap goes to the negative terminal of the battery and the other two outputs of the transformer to the anode of the SCR. The cathodes of the SCR are connected together and go through a shunt resistor for measuring the current, then a fuse, and then to the positive terminal of the battery. (This is thought for lead batteries.)
- I am measuring the current while charging. Can make the code control PWM signal for the opto to maintain the current as if it was a "Constant Current Supply?" This is because I want to charge the battery in the best way possible, you know, it has a constant current charging, then a constant voltage, etc.
- Is there a better way to achieve what I'm looking for? Better in a more budget way, without changing the base circuit? Can I improve the circuit with little changes?