- #1
chakr
Gold Member
- 34
- 2
Hi,
I designed a small wireless sensor that can run from 5V USB power. I use a USB hub to power my device via a USB cable. There is so much noise on the 5V USB line that my device readings turn inaccurate. Using the oscilloscope I can see noise frequencies of 10MHz and down to 100kHz, assuming the scope gives me accurate frequency values. The noise amplitude is almost 500mV.
Can anyone recommend a circuit that can help to get rid of the noise?
Thank you.
I designed a small wireless sensor that can run from 5V USB power. I use a USB hub to power my device via a USB cable. There is so much noise on the 5V USB line that my device readings turn inaccurate. Using the oscilloscope I can see noise frequencies of 10MHz and down to 100kHz, assuming the scope gives me accurate frequency values. The noise amplitude is almost 500mV.
Can anyone recommend a circuit that can help to get rid of the noise?
Thank you.