Dynamic Power Dissipation Considerations for Solid State Relays

This article looks at how the frequency of operation ultimately imposes an upper limit on the total power dissipation. In many applications, it becomes imperative that both dynamic and static power dissipation be accurately calculated such that the maximum power dissipation allowed for the SSR is not exceeded. The article also looks at some typical and interesting application examples where the SSR can be used in end applications.

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About the author
Jamshed N. Khan from Lahore, Pakistan has a BSEE in electrical engineering from the University of California, Berkeley. From 1979 to 1984, he worked at the Fairchild Semiconductor Company (Mountain View, California) as an analog designer and front-end manufacturing product engineer. In 1984, Jamshed joined the Hewlett-Packard Company (Palo Alto, California) as yield enhancement and product engineer for the optical devices, including optocouplers and optically coupled solid state relays, then became an Applications Engineer for the optocoupler devices and joined the IEC 60747 SC47E/WG4 as a technical contributor and participant to generate an international safety standard IEC 60747 (for optocouplers and optically coupled solid state relays).