Is the Snap Amp PWM on all the output channels synchronized. i.e. do all the PWM positive pulses on all the bridges activate at the same time? I realize that the pulse widths would be different for each bridge so they would turn off at different times.
I'm having noise issues with a couple of brushless motors causing USB disconnection even though I have an isolator installed.
The reason I'm asking is I built a system with multiple small DC motors a while back and found that if I installed inductors in each motor leg, all the noise issues were eliminated completely. So, if all the bridges PWM signals activate in the same direction at the same time, maybe I could install one inductor in each bus power leg to accomplish the same effect with fewer inductors.
AZ
Snap Amp Noise affecting USB connection
Moderators: TomKerekes, dynomotion
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TomKerekes
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Re: Snap Amp Noise affecting USB connection
Hi AZ,
I don't think they switch at the same time depending on mode, enable/disable, direction and such. Shorting SnapAmp Full Bridge Outputs together would likely cause damage. Probably not a good idea to put an inductor in series with the supply either.
I don't think they switch at the same time depending on mode, enable/disable, direction and such. Shorting SnapAmp Full Bridge Outputs together would likely cause damage. Probably not a good idea to put an inductor in series with the supply either.
Regards,
Tom Kerekes
Dynomotion, Inc.
Tom Kerekes
Dynomotion, Inc.