LED Boost Circuit


Posted on Aug 2, 2012

The completed board may be driven by voltages between .8 and 3 Volts. While the basic design goal was candle like light from a single cell, the values used were chosen to allow safe operation from 3 Volts so you can, for example, use it to drain the last bit of energy out of used Lithium based cells from flashlights. This means that you can also drive it from a fresh 123 cell at full brightness (for 16 hours or so) or two NiMH, alkaline or other cells in series. While the current consumption (and therefore light output) goes down with supply voltage, some light is produced even with very low inputs.


LED Boost Circuit
Click here to download the full size of the above Circuit.

How to assemble the Boost Driver Printed Circuit Board 1. Trim the board to the final size you want before assembly. The board may be sawn, sanded or filed to shape. It is designed to be round should you want, a bit less than the diameter of an AA cell




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

warbler siren
Ambisonic soundfield type Microphone
Universal wiper delay
5W 80M Cw Transceiver
Inductorless Switching Regulator Circuit
Long range FM transmitter
EFHW Tuner
The Human Theremin with ir distance sensor
Buck Converter Design



Top