Both watts (W) and volt-amperes (VA) are units of measurement for electrical power. Watts refer to “real power,” while volt-amperes refer to “apparent power.” Usually, electronic products show one or ...

USB ports have quietly turned into the default power outlet for phones, laptops, headphones, and even monitors, but the ...

Did you know that 1 horsepower is the amount of power required to lift 550 pounds to a height of 1 foot in 1 second? Or, did you know that a foot-pound of torque is literally 1 pound of force exerted ...

Analog topologies abound for converting current to voltage, voltage to current, voltage to frequency, and frequency to voltage, among other conversions. Figure 1 joins the flock while singing a ...

How power works in a data center: What you need to know Your email has been sent Electricity is often one of the least visible elements of a shiny, state-of-the-art data center. Learn more about the ...

If a product uses power, then power consumption and power quality measurements must be made as part of product design and test. These measurements are essential to optimize product design, comply with ...

Normally when we hear of a Champ guitar amp, we think of a sweet-sounding rig that puts out 6 Watts through an 8-inch speaker. [John Chambers] of Champ Electronics wanted to build a true champion for ...

Measuring a voltage is pretty easy: just place your multimeter’s probes across the relevant pins and read the value. Probing currents is a bit trickier, since you need to open up the circuit and place ...

One of the more difficult things to explain with Apple’s new wireless MagSafe charger is why you only get around 10 watts with, for example, Apple’s own MacBook charger, which can charge a computer ...