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Old 03-01-2009, 12:46 PM   #481 (permalink)
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Go......go........go!......Go!........GO!........G O!!!!!

Seems there is no stopping your energy.

More pics for us EE dummies, please, we love pics.

Thanks Paul,

Eric and the K9s

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Old 03-01-2009, 04:35 PM   #482 (permalink)
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Kudos! This is exactly the thread I wanted to find for 6-8 months! I have collected the motors, batts, vehicles for a motorcycle and a car, but no controllers.

I will build some myself if you have not done a group-buy or a kit soon. Either way, Thank you and keep it up!

P.S. Ever thought about the solid-state "peltier device" cooling chips for temp control? They move heat efficiently for little portable drink coolers. I usually see them at Goodwill for about seven dollars.

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Old 03-01-2009, 07:12 PM   #483 (permalink)
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hey Paul,

I got the battery box in the back of my car today!

Working my way up to 12 by 12 for 144 volts of fury!!!!

(Er, or 12 by 6 by 2 until then....)
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Old 03-01-2009, 08:17 PM   #484 (permalink)
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Basically done with the power section (Only one more tiny thing).


I can get about 15 more controllers out of the left over silver conductive epoxy (cold solder)! Ya! It doesn't take much.


Part of the way done with the power section. One more bus bar to attach!


That blue thing is the current sensor!


Notice the backing of the mosfets/diodes, which electrically insulates them from the heat spreader.


Blah blah blah, more pictures.


With Ben's heat sink! yaay!


The M- side. Don't worry, after the box, only one inch of bus bar will be visible.


The capacitor side, with the gate resistors soldered. A single wire will connect the control board to the gate resistor string. Black box, anyone??? ya!


Sorry Ben. slight mod necessary.
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Old 03-01-2009, 08:23 PM   #485 (permalink)
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wow that looks awesome
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Old 03-01-2009, 08:34 PM   #486 (permalink)
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Dude! That so rocks!

That heat sink looks perfect for it!!!
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Old 03-02-2009, 08:26 AM   #487 (permalink)
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Awesome work. You have an excellent ability to physically build stuff. I can design and theorize all day, but i'd be really worried about putting a hole in the wrong spot on an expensive copper bar!

Make sure you wear safety goggles and gloves when you first power up this beast... who knows what might pop or heat up a couple hundred degrees.
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Old 03-02-2009, 09:25 AM   #488 (permalink)
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Dude, do you ever SLEEP?
It's lookin' awesome, man!
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Old 03-02-2009, 09:50 PM   #489 (permalink)
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Thread name change might be needed.

I'm sorry but this design, this functionality, this effort and support is FAR from cheap. Inexpensive yes, cheap no.

"Paul & Sabrina's inexpensive 144v motor controller"
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Old 03-03-2009, 11:38 AM   #490 (permalink)
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MPaulHolmes, can you shared you AVRstudio project ? It's very interesting for me to see it and think hard :-)

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