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#1
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Re: CIM no-load current vs applied voltage
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FRC 2005 KoP FP motor free current vs volts. Linear with y-intersept (similar to Globe's doc). |
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#2
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Re: CIM no-load current vs applied voltage
Wow, that's the first real data on an FRC motor I've seen.
However, there's a lot of detail missing: Are the different data points different motors, or is it all the same motor? What was the power supply? What was used to control the voltage? Is this with the gearbox or without? How fast did it turn? |
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#3
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Re: CIM no-load current vs applied voltage
Quote:
Are the different data points different motors, or is it all the same motor?At first I thought it was one motor with a lot of noise in the data, but now you have me wondering. What was the power supply? What was used to control the voltage?It was probably a variable DC supply. Is this with the gearbox or without?Did the FP come assembled with a gearbox in the 2005 KoP? If yes, then with; else without... would be my guess How fast did it turn?Yes, I would have liked to see that as well, to do a sanity check with the equations. Last edited by Ether : 17-12-2010 at 21:26. |
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#4
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Re: CIM no-load current vs applied voltage
Do you know if a variable-voltage DC supply is usually made with a movable-core transformer, or with PWM?
If it's done correctly, it shouldn't make a difference. I was mainly worried that they were using a Victor 884 or 883. I know those have very poor control at low duty cycles. |
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