One advantage of solid-state relay (SSR) over conventional electro-magnetic relay (EMR) is its tear and wear free operation. S201S01 from Sharp is a good example. Here is the circuit diagram of a DIY ...

Electronic relays have evolved a lot since their introduction in the early '30s, but their basic purpose hasn't changed. Transistors and integrated circuits have replaced vacuum tubes and the term ...

The proper selection of 3-phase solid state relays for motor control application depends not only upon a comprehensive understanding of 3-phase SSRs, but also of the 3-phase power system and ...

Optically isolated solid-state relays (SSRs) (also called optocouplers or photovoltaic relays) were developed to overcome ...

As said previously, the key characteristic of a solid-state relay is that it needs no moving parts to perform the task of opening or closing contacts on a circuit. Unlike an electromechanical relay, ...