/diy/ - Do It Yourself

Hey y'all, electronics noob here. I've got a bicycle with a dynamo that puts out 6v AC for the headlight, and I wanna add a small battery to the system so the headlight stays on when I'm stopped at a light or whatever. Cheapest way to convert 6vac to 6vdc? Would pic related work? I have no idea what values the components should be.

I also found a 12vac to 12vdc module online, but nothing for 6v. What would happen if I just used that?

And lastly, once I get the voltage to be DC, if I put the battery and the light in parallel, would that charge it while I was moving, while also keeping the light on, or would it just drain the battery? Thanks in advance my dudes

>>831163

no, dude, you're the one who's wrong.

when you rectify then filter AC you get the peak voltage, minus a little bit stolen by the diodes. so, the AC voltage, measured in RMS will be lower than the DC voltage. 7Vac sounds about right for a 9Vdc transformer.