The control circuit in Figure 1a allows you to manually adjust the power delivered to a load. By changing the setting of potentiometer R 3, you change the phase angle at which the thyristor (Q 3) ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Megan Wollerton If you’ve ever found yourself dashing through a rainstorm to ...

Lighting control systems can improve security, energy savings and convenience for the homeowner. However, with such a wide variety of products on the market, it can be a daunting task to find a device ...

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 ...

The defrost termination/fan delay control is a temperature-activated, single pole-double throw switch controlled with a remote sensing bulb (Fig. 1). The control can be an adjustable type. One example ...