[Boatanchors] Solid State Relay Question

[J Forster]

It can certainly be done as I've seen it in commercial gear. Get a generously sized relay and select a type that switches off at zero current. Since the switch off current
will not be quite zero, you may need a series RC network across the transformer primary as a transient snubber.

Do NOT use the SS relay as the only shutoff when you are working on the unit !!

Best,
-John



Greg wrote:

> Hi:
> I got a question about power supply design.
> Has anyone used a modern solid state relay in series with the primary winding to control the AC power to a conventional power transformer working as a plate power supply?
> Tnx and Happy Holiday to all
> Greg
> WA7LYO
> Kinston NC