equivalent circuit of a solid state relay

Posted on Feb 4, 2014

Switch 50V AC voltage. Maximum drained current will be 5A. Frequency is 50Hz. Switching speed is not important, can be real slow, it is not a problem in my application. I wanted to use solid state relay at first for this purpose. But as soon as I started to search an SSR, I saw that their prices are too high. For a cheaper alternative solution, I want to use MOSFET

equivalent circuit of a solid state relay
Click here to download the full size of the above Circuit.

transistors (can be a different transistor type as well) instead of solid state relay.

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