Load switches with controlled limited turn-on times, launched from several peer points on two wires, can significantly save energy. Such switches can be used at the entrance to the premises, passage ...

Most switch-mode power supplies rely on a PWM (pulse-width-modulated) output that is controlled via voltage feedback. A 555-timer IC can inexpensively perform PWM. The circuit in Figure 1 shows how to ...

Here's how to set up parental controls on your phone, set up timers and even cut off your kids from playing. I started with CNET reviewing laptops in 2009. Now I explore wearable tech, VR/AR, tablets, ...

BENGALURU: A massive step towards conserving electricity has been taken by the Bengaluru Railway Division. For the first time, sophisticated technology has been deployed to control lighting by making ...