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App note: Solid-State Relays

App note: Solid-State Relays



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Solid-state relays introduction from Vishay, Link here (PDF)

MOSFET SSRs feature an optocoupler construction, but have a pair of MOSFETs on the output instead of a phototransistor. A pair of source-coupled MOSFETs emulate an electromechanical relay by providing bidirectional switch capability and a linear contact. No output power supply is required.

 


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