Subject:
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Re: Tripping a relay.
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Newsgroups:
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lugnet.robotics
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Date:
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Tue, 23 Aug 2005 03:21:48 GMT
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Original-From:
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Bruce Boyes <BBOYES@SYSTRONIX.COMspamcake>
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Viewed:
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1224 times
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Quoting Dan Novy <dan@flashfilmworks.com>:
> If you hit a 5v latching relay with 9v, will it damage it?
>
> --
> Dan Novy
> Technical Supervisor
> Flash Film Works
If you mean the coil, 9V is 180% of 5V rated coil voltage. The issue is the
total power dissipated in the coil. If you only pulse the relay at a very low
duty cycle at room temp, it won't ever build up enough heat to damage it.
Drive it this way 100% duty cycle, and at a high ambient temp, then yes, you
will probably overheat and damage it.
Regards
Bruce
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Message has 1 Reply:
 | | Re: Tripping a relay.
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| So, all our discussion was for naught. Upon arriving, the Black Rock Playa of northern Nevada ate my driver/inverter for my ELWire, so I never got to even try my RCX based photo sensitive switch. Oh, well, now I have the time to do it right.... (19 years ago, 6-Sep-05, to lugnet.robotics)
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