Every parent knows the constant cycle of buying or recharging batteries for kid-related products—but the Instructables web site has some guides to modifying your gadgets to use AC power instead of ...

The demand for smaller, lighter, and more efficient AC/DC USB power delivery (PD) chargers is always a challenge for power-supply design engineers. Below 100 W, the quasi-resonant flyback is still the ...

Christine and Scott Gable are hybrid auto and alternative fuel experts who have brewed their own biodiesel and traveled 125,000 miles on waste vegetable oil. Broadly speaking, an inverter is an ...