It is a simple circuit used in time of power cut and also used as main power supply. It is a simple circuit used in time of power cut and also used as main power supply. You can also use this circuit ...

For an upcoming road trip, [Patrick] needed a small variable power supply. Instead of lugging around a bench supply, [Patrick] did the sensible thing and reverse engineered a cell phone charger to fit ...

The TMPC-650U, 650-W ATX power supply comes with a built-in 24-V battery charger and is approved for medical use. A single 24-V or two 12-V lead-acid batteries in series can be connected to be serve ...

The circuit was designed to provide an adjustment with a power supply that is symmetrically designed while providing a voltage range of 1.25V to 30V at 1A current. LM317 – an adjustable 3-terminal ...

USB chargers are everywhere and it is the responsibility of every hacker to use this commonly available device to its peak potential. [Septillion] and [Hugatry] have come up with a hack to manipulate ...

Halo Microelectronics has introduced a switched capacitor charger dc-dc converter for single Li-ion or Li-po cells that can deliver up to 7A while drawing 3.5A from the supply. Called HL7139, it is ...