When working around mains voltages, it can be useful to know whether a given circuit is live or not. While this can be done by direct connection with a multimeter, non-contact methods are available ...

Lighting a string of LEDs at a constant brightness requires driving it with a regulated current. A boost converter is commonly used to step up the voltage to a level high enough to bias the LEDs on ...

This is the simple version of a white LED lamp that can be directly powered from mains. It can give ample light even for reading purpose. Capacitor Cx along with diodes D1 through D4 forms the AC step ...

I have no brake lights on my 2006 Mazda5 van. It went thru inspection 3 months ago and I admit that I don't preflight so I'm not sure when it occurred. They work sometimes with the key off or on but ...

As the number of Power Over Ethernet (PoE) powered device (PD) applications grows, market pressures are driving designers to lower the cost and complexity of the DC-DC converters that power them, ...

When the temperatures outside begin to climb, many of us seek solace indoors with AC, but when did you last clean your outdoor air conditioner unit? You may have dusted the vents and changed the ...

The Indian meteorological department predicts heatwave casting all over the country in the coming days. The temperatures are soaring, and the humidity will increase. Therefore, the amount of power ...

Sean Jackson is a creative copywriter living in Florida. He's had work published with Realtor.com, theScore, ESPN, and the San Francisco Chronicle. In his free time, Sean likes to play drums, fail ...

In summer, you can divide most everyone into two camps: AC people and no-AC people. My family falls in the latter category, but we still want to keep our home comfortably cool - especially because my ...

To combat rising temperatures, maintaining an efficient car AC is crucial for comfort and fuel economy. Simple practices like parking in the shade, venting hot air, and using recirculation mode can ...