The input transformer is likely to be the most expensive part of the entire project. As an alternative, a couple of 12 Volt car batteries could be used. The input voltage to the regulator must be at ...

Batteries can be connected in series, parallel, or a combination of both, in order to give different power characteristics to ...

Amperage measures the rate that current flows through an electrical circuit. If voltage is like water pressure, amperage is ...

In one respect, voltage is like water: you don't appreciate its value until your supply runs low. Low-voltage systems, defined here as a single power supply less than 5 V, teach us to appreciate ...

Assuming that they're in series, 6v nominally for alkaline, as low as 4.8 for NiMH. Batteries are specced in Amp-Hours, not amps--amperage is a rate, Ah is a quantity indicating the amount of energy ...

Author Mazi Hosseini describes a simple, low-cost, voltage-controlled current source using two op amps that provides a good range of current and maximum load. One challenge in circuit design is ...

[C] just recently put together a RepRap. Not wanting to spend the money on a dedicated power supply, he looked around for a cheaper solution and found one in an off-the-shelf ATX computer power supply ...

I have a small dorm fridge, but the place where I want/need/can only put it requires me to plug it into a generic power strip.<BR><BR>The "Compact Refrigerator" is rated: 120V, 60Hz (AC), 15 ...