Large heat sink needed
azotic wrote:
Does anyone have a heat sink that they want to part with ?
My minimum size requirement would be 6" X 8" or bigger.
I finished my DIY 3-phase VFD and need a large heat sink for the IGBT's.
When i have the heat sink i will be posting a short video of
the VFD in operation. It was a fun project and very educational. I believe
that
building a VFD is well within the capabillities of the folks that hang out
here.
Once i find a freeware schematic program i will produce a schematic and
have it available on the web if anyone is interested in building a VFD. I
have
run some short duration tests using a 7.5hp motor successfully.
Very interested in what you have done! Did you use the IR kit
design, or somebody's microcontroller?
I have designed the control logic in an FPGA for a 2-phase motor
on a high-speed spindle, but still have a bunch of testing to do
before it would work.
Jon
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