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Old 04-30-2010, 05:24 AM   #3377 (permalink)
mcudogs
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Join Date: Jun 2009
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Quote:
Originally Posted by sawickm View Post
Hi Don,

Thanks for your reply.

To understand you correctly, your using the V1.11b firmware on your Rev.D PCB right now?

The extra I/O hardware you added to the Rev.D PCB still needs to be programed into the current V1.11b firmware?

Was I correct about the new I/O you added to your Rev.D PCB?

1. Motor Speed Sensor
2. Battery Voltage Monitor
3. Cap Pre-Charger
4. Cooling Fan
5. Extra A/D

I have a question about your "etched" Power PCB. What is the weight of copper you are using on your G10/FR4 PCB?, 2oz, 3oz, 4oz, etc.....

Thanks again,

- Mark
Mark,

Yes I am using the v1.11b firmware now. All of the version c inputs and outputs are using the same pins as this version. The extra hardware still has to be programmed in to a new version of the firmware.

The extra functions are
1. Motor Speed Sensor
2. Battery Voltage Monitor
3. A 2nd mosfet driver to drive a 12v load
4. Configurable Input A/D or opto isolated digital

The power board is 4 oz copper. Where the Cu is thinnest between the diodes and mosfets there is no solder mask and I run a thick bead of solder to improve the current carrying capacity.

Don
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