Improved Joule Thief Circuit

May 20, 2011 | electronics | By: Mark VandeWettering

While surfing for more LED information, I found this rather nifty little circuit on Electronic Design’s website. It’s a little Joule Thief-like circuit, but with enhanced efficiency (~80%) and it can drive white LEDs with rather large forward voltage drops. Archived for later….

Single Alkaline Battery Drives White LED.

Comments

Comment from Watson
Time 5/21/2011 at 8:51 pm

See my blog for details about this circuit.
http://watsonseblog.blogspot.com/2011/05/2011-may-11-electronicdesigncom-jt.html

Comment from MikeK
Time 5/19/2013 at 5:18 pm

The ED link is bad, here’s the current one: http://electronicdesign.com/energy/single-alkaline-battery-drives-white-led