A relay is simply a mechanical switch that you’ll find in your house and car electronics. See what relay components are doing in all your stuff. ... Relay Construction

A relay is simply a mechanical switch that you’ll find in your house and car electronics. See what relay components are doing in all your stuff. ... Relay Construction

This electronic circuit reduces the needed control current to a much more tolerable 50ua, but can still switch up to 600 watts of 120vac power. ... ; OPTICALLY ISOLATED ; SOLID STATE RELAY;

A electronic circuit that provides the necessary drive for a MOSFET bi-directional relay used to switch power to 120vac loads. ... We make every effort to link to material posted by the designer.

The local phone company, which provides us with a frame relay circuit, says they can provide connectivity to DSL in the existing circuit.

Notes: Except for the back emf diodes across the relay coils this circuit is identical in function to the example shown on the relay contact labeling guide in the practical section.

This circuit is necessary if you are using a relay with a coil that needs more power than the microcontroller can supply (this includes most miniature electromechanical relays):

Virtual Integrated Design's the micro stop - RS232 relay circuit, free! ... RS232 relay driver

Virtual Integrated Design's the micro stop - RS232 relay circuit and CTS code, free! ... RS232 relay driver

If we remove the triac, the two resistors and the two diodes, we can insert the above solid state relay circuit and the output of that SSR circuit can power small appliances and fluorescent lights.