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Old 09-30-2003, 10:42 AM
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crazydave crazydave is offline
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Join Date: Jan 2003
Posts: 516
Here's my theory.

It's digital proportional. Which means it has an ADA converter to coverts the analog radio signal to digital, and then back to analog again. Digital is all 0s and 1, or IOW a whole series of millions of switches turning off and on. Hence the pulsed motor signal that some have noticed. The faster the ADA coverters processor is, the faster the pulse, and the a more constant signal to the motor.

I believe because of size and cost restraints, the ZZ SE is using a slow ADA converter. They use ADA converters in stuff like CD players, and guitar effects. Back in the 80s when CD players first came out, the speed of the ADA converter determines whether it was 2x or 4x, etc. oversampling. Those were like 4 bit, and 8 bit converters. Nowdays they run like 32 and 64 bit converters, which improves the sound quality, by making it less pulsed, and closer to analog.

So anyways, after mosfeting the H-bridge on the output of these, and seeing a increase in torque, but still seemily being stifled, it's my theory that we need a more powerful ADA converter to smooth out the output, and get any torque out of these.


But that's just a theory.
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