PS
I'm a bit rusty on how circuits are annotated, but I'm a little confused on how both inductors are labled "0.47 mH", but are also labled "4R9" and "10R". Aren't these designations for two different inductor values as opposed to identical (0.47 mH)?
Search found 3 matches
- Thu May 29, 2014 10:51 pm
- Forum: General Discussion
- Topic: Solar panel charger with auto shutoff. Solar LED drivers.
- Replies: 55
- Views: 379224
- Thu May 29, 2014 10:39 pm
- Forum: General Discussion
- Topic: Solar panel charger with auto shutoff. Solar LED drivers.
- Replies: 55
- Views: 379224
Re: Solar panel charger with auto shutoff. Solar LED drivers
Hey thanks for that reply and that circuit! I put it together and indeed it is a very simple and effective alternative to the toroidal coil approach. It's actually a very nice solution to my requirements of "easy to put together 100" and "works off old cast off AA batteries for a hand...
- Wed May 28, 2014 2:32 pm
- Forum: General Discussion
- Topic: Solar panel charger with auto shutoff. Solar LED drivers.
- Replies: 55
- Views: 379224
Re: Solar panel charger with auto shutoff. Solar LED drivers
Hi, glad I found this thread! I've been messing with the QX5252 the last week, making a nice little minimal Joule Thief-like setup. But I've run into one quandary, and wondered if any of you knew a way around it. As mentioned before, the chip will turn off the light when the voltage gets below 0.9 o...