I have an issue with motor noise on one of my projects.
I am running the motor through an H bridge and controlling it with a PWM at 250 Hz (tried 4 KHz same thing). Its a 6V motor that we run in various directions using the HBridge.
When the motor is on, our analogue sensors signal has large noise spikes (see picture):
We have 10nF ceramic caps on the + and - of the motor to ground.
But they didnt seem to do anything. Anyone have an idea on what we should do? I saw the 10nF cap number going around a lot for spike reduction.
I am running the motor through an H bridge and controlling it with a PWM at 250 Hz (tried 4 KHz same thing). Its a 6V motor that we run in various directions using the HBridge.
When the motor is on, our analogue sensors signal has large noise spikes (see picture):
We have 10nF ceramic caps on the + and - of the motor to ground.
But they didnt seem to do anything. Anyone have an idea on what we should do? I saw the 10nF cap number going around a lot for spike reduction.