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Author Topic: Back EMF question  (Read 1462 times)

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(unknown)

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Back EMF question
« on: January 22, 2005, 08:22:22 PM »
Does anyone know if IN914 diodes will block back EMF?

Also, do they need to be on both the positive and negative side of a 12 volt DC circuit.


Thanks!

« Last Edit: January 22, 2005, 08:22:22 PM by (unknown) »
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Chiron

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Re: Back EMF question
« Reply #1 on: January 22, 2005, 06:24:09 PM »
They only need to be on one side but the 914s will only handle an Amp (max) of forward current.
« Last Edit: January 22, 2005, 06:24:09 PM by (unknown) »
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(unknown)

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Re: Back EMF question
« Reply #2 on: January 22, 2005, 07:30:55 PM »
Thanks!
« Last Edit: January 22, 2005, 07:30:55 PM by (unknown) »
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drdongle

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Re: Back EMF question
« Reply #3 on: January 23, 2005, 06:42:21 AM »
I suggest diodes fron the 1N400x family there very common, cheep and very robust, I have a drawer full of the 1n4007's which are one amp 1KV that I use for everything.


 

« Last Edit: January 23, 2005, 06:42:21 AM by (unknown) »
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(unknown)

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Re: Back EMF question
« Reply #4 on: January 23, 2005, 03:20:36 PM »
Thanks for the info!
« Last Edit: January 23, 2005, 03:20:36 PM by (unknown) »
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Opera House

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Re: Back EMF question
« Reply #5 on: January 23, 2005, 06:40:36 PM »
I really wouldn't suggest using a 1N914 for anything other than logic purposes.  That is a pretty wimpy diode, mechanically and electrically, that is only rated at 200ma.
« Last Edit: January 23, 2005, 06:40:36 PM by (unknown) »
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JW

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Re: Back EMF question
« Reply #6 on: August 21, 2022, 01:05:33 PM »
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