Redisign of an existing controller (by Milan Lulic). More power achieved, RdsON=0.006 Ohm. Max current 50 A with heatsink (about 20-30 whitout). Drawing is made with the idea that for home made PCB you should have single side (no via) only like this one is, and use surface mount components so you don't need to drill too much. Easy to build! Few components!
Component layout
Circuit diagram (slightly updated 9/10/2001)
PCB traces
PCB traces magnified
(all PDF files)
Back
to Behr's collection of speed controls