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Archive for August, 2010

I bet you were expecting to see Part 3 of this build? I’ve recently learned about the important of power dissipation when giving my circuit the real test of 12 volts @ 0.75 Amps and thought I’d share it with you.

In my selection of transistors for the motor controller I went with ones that firstly had a low Vce and then based on price after that; what I didn’t completely take into account is the power dissipation of these components. I know I mentioned it in part 1 however I didn’t completely understand why one of my transistor’s datasheets had 2 values for power dissipation… and now I do, and you will to!

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