Many joule thief designs feature hand-wound coils, which is great for junk box builds but certainly becomes more of a challenge for a tiny build like this one.

A common project among electronics tinkerers is the joule thief, a self-oscillating circuit that can “steal” the remaining energy in a battery after the voltage has dropped so low that most ...

Gagyo Tech based in Los Angeles has created a new portable battery powered vehicle jump starter, called the KOMA, powerful enough to start any car or truck and apparently even small ships under 25 ...

The Joule-Thief Energy Harvesting demonstration kit includes a RLP Smart Energy Beam along with collection and storage electronics in a matchbox-size package. Price is $699.

AdaptivEnergy has developed a demonstration kit using its Joule-Thief technology to harvest energy and power Texas Instruments’ MSP430 microcontroller (MCU) and RF technology to collect data ...