Joule Thief: LSGhostLight Voltage Rise from Added Capacitor
Does the LS “Crossover” circuit charge its own battery? Well, you can see the voltage going up when I hook up the 1uF bypass cap, and that’s definitely not electrolytic bounce. After reading gadgetmall’s post I tried a cap in the position he indicated, but instead of 0.22 I used 1.0 because that was right in front of me. Surprised the “heck” out of me too…… This is a neat effect of this circuit. Think about what’s happening…. I’m still thinking….. it’s really too bad it won’t do this to the capacitor stack without the battery in circuit…. but that is a major clue to what’s happening. Be sure to check the no-load voltage of your battery before you do this experiment, then also check it afterwards.