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Isnt it okay for Q1? LED works well for Q2 though. Suggestions? ?:|

But what if there is negligible current supplied by the panel? :-( Thanks Binky. I dont think my 3V panel can produce sparks that could be detected but i'd measured the voltage and current under a good quality multimeter. Anyways, i will give it a last try again once i get back home. KME, i'm...

Now i dont want to sound total noob(as i completely am) but i aint really sure whats happening with the panel. I took the panel to my Univ to check the current values. At 2.2V, the short circuit current was 0.5mA(peak). I checked the value twice, thrice but it just showed 0.5mA as against the...

Yes but its true for a general purpose diode(Silicon based). Since, i am using a schotkky diode which has a PD of 0.3V across it, the potential shouldnt be lower than 1.7V. I suppose measuring the current flow using a multimeter be worthwhile :-). I'll get it done by tomorrow and report back...

True. Thats what it ideally should do. But upon checking the potential across the battery when the solar panel shuts the oscillator the multimeter reads 1.27V, the battery voltage. Is it okay? Or should it be between 1.27 and 2V(Solar panel volatge output)? I hope i'm not being a pain in the...

:-D Okay, about the circuit, its a type of boost converter which drives a led having a forward voltage of 2.8 from a 1.2V(or 1.5V) battery source. In short, it step ups the voltage. The inductor in the circuit is custom made by me. The attached image below will help you get the idea. Its a type...

That was very humble of you Doc Hudson. Not many mods do that. Glad to be a part of your community :-) Cheers! Yes, a low resistance might damage the transistor Q1 but i tried using higher resistance value which only dampens its sensitivity and doesnt cut off the led. And oh, by the way, i am...

Hi there! I'm building a circuit and having a little trouble while setting up a 3V solar Cell(~100mA) in the circuit as attached. When i tested the solar cell the open circuit voltage was above 1.8V but while connected in the circuit, it just aint rising anything above 0.75V. The battery...