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) ...

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 ...

Meara covers streaming service news for CNET. She graduated from the University of Texas at Austin with a degree in journalism. When she's not writing, she likes to dote over her cat, sip black coffee ...