Steve K
Flashlight Enthusiast
Yip, the frequency is exactly the same before and after the fets. PLEASE PLEASE PLEASE tell me it should be double the freq after the FETs!
I think it should indicate twice the frequency. However, I'm not going to tear my light apart to verify this!
A scope should easily verify the frequency, and I think most meters could too, assuming that they are designed to measure frequency. The AC frequency of the dynamo should easily be within the range that it can handle (and you can check the manual to find out).
For reference and for the heck of it, here's a scope photo of the output of the rectifier in my circuit, and below it, the output of the first one-shot.....
wasn't there a problem with your mosfet bridge rectifier before? Or am I thinking of something else?