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 ...

When you want to make your lights smarter without changing the bulbs, you’re likely looking at upgrading to a smart light switch. One of the more vital functions of a smart switch is its ability to ...

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 ...

The basic controls of smart light switches involve an on and off function. Additional desirable options may include the ability to dim the lights. Some may have advanced features, including a sunrise ...