well thanks all for their inputs
Well if you put a bridge rectifier before the left 100uF capacitor and increased that capacitor to 2200uf or higher then yes it would work but would still give you a DC output.
Why bridge? Why not a single diode would work?
Actually in my bike the AC connectors runs a 35w bulb on AC and that alternator is not even powerful enough to handle 55w, tried everything didn't work. It hardly produce 3 or 3.1 Amps from 0-30VAC
So, I wanna give a try 45w bulb. But the built in regulator stops the volts exceeding at 12v.
So, I need something 15v output thats 15x3=45w. No matter whether out is AC or DC. I only want to power the bulb.
That is like this
Only that single wire is connected to the regulator, if i remove it, it would have no control over the bulb.
So does a single diode will work?
I've 6A4 6 Amp diode. will put just before the input, then would i still need to change that left 100uf capacitor to 2200uf??
I've one 4700uf 35v.
I wish if this work!
Edit:
I also tried this method to increase 2v
https://mastercircuits.blogspot.in/2011/08/headlight-intensity-enhancer.html
But volts exceeded to 20 and my bulb got blow.
That is a 12.7V zener to give 12V out; so, you need a 15.7V for 15V to account for the usual 0.7V BE differential to turn the transistor on. See here:
https://en.wikipedia.org/wiki/Current_source
John
Thanks John
The link u provided has crossover my head