More On The Headlamp Upgrade
I thought you might want a bit more information on the headlamp upgrade I built for my Pashley’s hub-dynamo driven front light. You probably don’t, as you’d have to be the same sort of geek that I am to enjoy this, but what the heck - here they are anyway:
First up, the circuit diagram for the power supply circuit:
Remember, the central part of this looked like this before it was soldered into the bike’s wiring:
The blue disc is the capacitor, and the wires sticking out left & right are for the AC in, while the top one is +5.5V and the bottom one 0V.
Daughter helped me film the whole thing in action tonight:
As you can see, at very low speeds, the bulb strobes, but above even a very slow walking speed it burns bright and steady, and when I stop, it dims a little but stays lit.
In case you hadn’t guessed, I’m quite pleased about this!