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cryotech
New Member

2 Posts
Posted - Jan 30 2013 :  6:28:11 PM  Show Profile  Reply with Quote
Trying to control a 110Vdc coil. It needs to be adjustable from 70vdc to 115vdc, 30A max with adjustable 12-15Khz. Does any one Have a clue on how to do this. been at it for weeks and cant sleep. Please help....

pebe
Nobel Prize Winner

United Kingdom
1078 Posts
Posted - Jan 31 2013 :  04:09:39 AM  Show Profile  Reply with Quote
I don't understand your question. Why do you need those parameters to control a 110VDC coil?
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cryotech
New Member

2 Posts
Posted - Jan 31 2013 :  10:10:06 AM  Show Profile  Reply with Quote
quote:
Originally posted by pebe

I don't understand your question. Why do you need those parameters to control a 110VDC coil?
Building a test stand. You can Oham out the coil but I need to test the full opperation of the valve high and low side. The only way to stest the valve is to put the coil on it and operate it as a unit.
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pebe
Nobel Prize Winner

United Kingdom
1078 Posts
Posted - Jan 31 2013 :  11:53:06 AM  Show Profile  Reply with Quote
If you are looking for a 3.5kW power supply at 15kHz then it will be very hard to find - or make!
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Aaron Cake
Administrator

Canada
6717 Posts
Posted - Feb 03 2013 :  11:28:45 AM  Show Profile  Visit Aaron Cake's Homepage  Send Aaron Cake an ICQ Message  Send Aaron Cake a Yahoo! Message  Reply with Quote
That is one big solenoid! As mentioned, it's not trivial to build such a supply. Perhaps look at industrial motor controllers, maybe surplus on eBay.
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