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Author Topic: Motor Suppresion  (Read 998 times)

david48

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Motor Suppresion
« on: April 25, 2014, 10:06:03 AM »

I have a motor out of a camera it's from the film wind it's rpm is ok for the radar drive ,please can any one tell me how I work out what suppressor to use .The camera used 2  1.5 v batts.. It is 12 mm dia. 30mm long  no other info just a date stamp maby I need to know how many amps it pulls.
Thank you
David building Fairmount Alpine.
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Tug-Kenny

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Re: Motor Suppresion
« Reply #1 on: April 25, 2014, 10:11:31 AM »


That is quite a small motor. I would imagine the current drawn is very low. Probably under half an amp so I would not worry about suppression until you notice any interference.
A standard set of capacitors across the terminals would probably be in the PicoFarad range.

Hope this helps

ken

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david48

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Re: Motor Suppresion
« Reply #2 on: April 25, 2014, 10:17:27 AM »

Thank you for your help ,just have to make a plan to fit it
David
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inertia

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Re: Motor Suppresion
« Reply #3 on: April 25, 2014, 12:30:52 PM »

David
My experience with small motors is that a 0.1uF ceramic disc capacitor across the two motor terminals generally fixes any RF problems.
DM

http://www.maplin.co.uk/p/decoupling-ceramic-disc-01uf-capacitor-n43cj
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