Driving a solenoid?

Thread Starter

stolencdz

Joined Apr 21, 2006
1
Hi all.

I have a solenoid plunger that I'd like to drive from an FPGA. There will be a voltage spike when I stop driving the solenoid and would rather not damage the board. I've been given vague advice about creating a circuit to 'drive' the solenoid and protect the board. Could anyone provide further insights about this?

Thanks!
 

Papabravo

Joined Feb 24, 2006
13,533
Originally posted by stolencdz@Apr 21 2006, 07:00 PM
Hi all.

I have a solenoid plunger that I'd like to drive from an FPGA. There will be a voltage spike when I stop driving the solenoid and would rather not damage the board. I've been given vague advice about creating a circuit to 'drive' the solenoid and protect the board. Could anyone provide further insights about this?

Thanks!
[post=16394]Quoted post[/post]​
The following diagram may be helpful
[attachmentid=1390]
 

windoze killa

Joined Feb 23, 2006
605
Originally posted by Papabravo@Apr 22 2006, 10:26 AM
The following diagram may be helpful
[attachmentid=1390]
[post=16395]Quoted post[/post]​
You could also use a DS2003 transistor array or even just a transistor and a few resistors. There are plenty of circuits out there for doing this. The benefits of a DS2003 is there are 7 transistors in a small package so if you want to drive more than one it is there waiting for you.
 
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