Hi
I've design a PCB at which I'm now experiencing some noise that is influencing the wireless communication (433MHz).
The PCB is only power by a battery(LiPo) and a directly connected the ground to a mounting hole that is connected to the chassis.
In my design I'm using the LT3508 switching regulator, so I think most of the noise is coming from here. I'm going to do some experiments with inductors and capacitors, but I was wondering if someone would recommend not connecting the ground to the chassis at all. Would this make a difference and would it be better to connect more mounting holes than one. I think the impedance would be less but this could cause ground loops.
In my application I'm making a small robot/car that is isolated from the earth.
Best regards,
Dukel
I've design a PCB at which I'm now experiencing some noise that is influencing the wireless communication (433MHz).
The PCB is only power by a battery(LiPo) and a directly connected the ground to a mounting hole that is connected to the chassis.
In my design I'm using the LT3508 switching regulator, so I think most of the noise is coming from here. I'm going to do some experiments with inductors and capacitors, but I was wondering if someone would recommend not connecting the ground to the chassis at all. Would this make a difference and would it be better to connect more mounting holes than one. I think the impedance would be less but this could cause ground loops.
In my application I'm making a small robot/car that is isolated from the earth.
Best regards,
Dukel