"joule-thief"-tagged Public Circuits

joule thief 01 PUBLIC

Joule Thief circuit. CL have changed something in the simulator because this used to run with the sim set up as. Now, it does not show the exponential rise of V1 and does not start oscillating unless...

by signality | updated July 01, 2014

initial-conditions   joule-thief   oscillator-startup   startup  

Reverse Joule Thief Light PUBLIC

A novel circuit to charge a Li-ion battery from a 2v Solar cell

by qs | updated July 14, 2013

joule-thief   led   lighting  

Dimmable Joule Thief Buck circuit with MOSFet PUBLIC

A quick and easy circuit to control a 10v 200mA LED array using a 2N7000 MOSFET. Dimming is done through R2.

by qs | updated May 09, 2013

2n7000   buck   joule-thief   mosfet  

Dimmable Current-controlled LED driver PUBLIC

A simple dimmable driver for a 10v-200mA LED array. Part is DX SKU: 195326 ($2.60)

by qs | updated April 29, 2013

current-controlled   dimmable   driver   joule-thief   led-array  

JT Dimming Driver Circuit PUBLIC

A "true" Joule-thief circuit to drive a 3S2P LED array from DX (SKU 195326). Features a dimmable output.

by qs | updated April 29, 2013

12v-driver   joule-thief   led-array  

Mg-Cu cell Flasher PUBLIC

A purpose design to utilize output from a Mg-Cu (salt-water activated) battery to power a hi-power LED as a flasher. R1 is the simulated internal resistance of the cell.

by qs | updated March 20, 2013

flasher   joule-thief   magnesium-cell  

Joule Thief PUBLIC

by badilator | updated October 23, 2012

joule-thief  

Joule Thief Timer PUBLIC

A simple single coil Joule Thief with a timer function.

by qs | updated September 04, 2012

joule-thief   timed-light   timer  

Dual 2222 Joule Thief PUBLIC

A simple single coil Joule Thief using two 2N2222 transistor to convert 1.2-volt to light a white LED.

by qs | updated September 04, 2012

dual-npn   joule-thief   simple-2n2222  

JT Flashlight Conversion PUBLIC

by qs | updated April 02, 2012

flashlight   joule   joule-thief   led   light   thief  

Simple JT Flasher with Daylight sensing PUBLIC

An attention grabbing Joule-Thief blinker using a single transistor and shuts off during daylight.

by qs | updated March 13, 2012

blinking   flasher   joule   joule-thief   led   thief  

1-watt Joule Thief PUBLIC

A high-power Joule Thief type circuit to drive a 1watt LED from a 1.5 volt source. A suitable driver transistor, like the 2SD965, 2SC2500, 2SC2655 MUST be used! The second winding has been replaced by...

by qs | updated March 10, 2012

joule   joule-thief   led   power   thief  

Simple JT Flasher PUBLIC

A simple, 1-volt LED flasher using a single transistor.

by qs | updated March 10, 2012

blinker   flasher   flashing   joule   joule-thief   thief