Tech Support? - Help!

Mar 31, 2006 2 Replies

Hello,



I am working on a project where i'm looking to deliver power from a



12vdc, approx 10A, battery to a mechnical relay which will switch when i send a signal from my microcontroller.

The catch is that, as most linear actuators need positive and negative voltage, so do mine..



I am thinking i may be able to accomplish this if i use two mechanical relays but thats just a guess. I was thinking some kind of setup with an inverse amplifier but that certainly does not not manage such current.



If anyone has any suggestions I would greatly appreciate it


Thank You



You need a double-pole double-throw switch configured for 'reversing'- like here:

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the page about 1/2 way. You could use a DPDT relay, or several smaller relays wired appropriately. You just need to make sure it can never get into a configuration that shorts the battery.

DPDT relay will be the safest route.

Dave

GE makes an RR9 relay. Used for their low voltage lighting systems. It is electrically driven in each way by voltage. Only problem is all of the RR9's I have used are 24 volt. Aint cheap, but they do work for long periods of time.

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