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Re: [Paparazzi-devel] about relays

From: Rui Costa
Subject: Re: [Paparazzi-devel] about relays
Date: Sat, 1 Jan 2011 20:27:36 -0100

Thanks for the advice.
Happy New Year.
Rui Costa

On Fri, Dec 31, 2010 at 9:15 PM, Chris <address@hidden> wrote:
For those who will add relays don't forget to add a fast recovery diode (a  Schottkey 1N5819 will do)
paralleled  with a 0.1 microfarad capacitor at the relay's solenoid (energizing coil)  terminals.
The diode's anode goes to relay's "-" and the cathode to "+" so the diode is reverse biased.
The relay's coil acts as a high voltage generator when the current is cut and i have measured
generated voltages in excess of 3Kv.
I am sure you all knew that but just to be safe.....

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Rui Costa

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