This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. ------_=_NextPart_000_01C21634.F84A3B00 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C21634.F84A3B00" ------_=_NextPart_001_01C21634.F84A3B00 Content-Type: text/plain; charset="iso-8859-1" Erik, I used the attatched file to control fans (24VDC @ 1A) and higher current relays with good success. The switching action is controlled by a PIC pin on the BS170. The parts are available from DIGIKEY. It's not the cheapest of circuits but I don't like to use relays if it is possible. Also, the IRFU9120 is a DMOS part, the diode is part of the process. Best of luck!! Steve Steven Kosmerchock Radio Frequency Systems Phoenix, Arizona USA (WORK) www.rfsworld.com www.geocities.com/researchtriangle/lab/6584 "Great spirits have always encountered violent oppposition from mediocre minds."--A.Einstein ------_=_NextPart_001_01C21634.F84A3B00 Content-Type: text/html; charset="iso-8859-1" RE: [EE]: interfacing a a relay (automotive world)

Erik,

I used the attatched file to control fans (24VDC @ 1A) and
higher current relays with good success. The switching
action is controlled by a PIC pin on the BS170. The parts are
available from DIGIKEY. It's not the cheapest of circuits but
I don't like to use relays if it is possible. Also, the IRFU9120 is
a DMOS part, the diode is part of the process.

Best of luck!!
Steve

Steven Kosmerchock
Radio Frequency Systems
Phoenix,  Arizona  USA
(WORK) www.rfsworld.com

www.geocities.com/researchtriangle/lab/6584

"Great spirits have always encountered violent
oppposition from mediocre minds."--A.Einstein


 

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