« previous next »
Pages: [1]   Go Down

Author Topic: How to investigate PSU noise problem?  (Read 1302 times)

0 Members and 1 Guest are viewing this topic.

Offline rudika79Topic starter

  • Regular Contributor
  • *
  • Posts: 68
  • Country: gb
How to investigate PSU noise problem?
« on: September 07, 2016, 03:05:35 pm »
What is a best way to investigate PSU noise problem?
Logged
 

Offline Ranger14

  • Regular Contributor
  • *
  • Posts: 64
  • Country: us
Re: How to investigate PSU noise problem?
« Reply #1 on: September 07, 2016, 03:25:51 pm »
Do you have a scope ??
Also you could try filtering or maybe powering with a battery to see if the noise goes away..
Logged
 

Offline pix3l

  • Regular Contributor
  • *
  • Posts: 83
  • Country: nl
  • Let's pix3l8e
Re: How to investigate PSU noise problem?
« Reply #2 on: September 07, 2016, 03:26:38 pm »
What kind of PSU? What kind of noise? You could be a lot more specific..
Logged
 

Offline JS

  • Frequent Contributor
  • **
  • Posts: 947
  • Country: ar
Re: How to investigate PSU noise problem?
« Reply #3 on: September 07, 2016, 10:12:08 pm »
Attach a noise meter to each stage and see which one is generating it and/or which one isn't filtering it out.

JS
Logged
If I don't know how it works, I prefer not to turn it on.
 

Offline David Hess

  • Super Contributor
  • ***
  • Posts: 16612
  • Country: us
  • DavidH
Re: How to investigate PSU noise problem?
« Reply #4 on: September 08, 2016, 07:40:07 am »
Use an oscilloscope to characterize the noise.  Line triggering will reveal if power line ripple is a problem.  External triggering will reveal if it is switching noise.
Logged
 
Pages: [1]   Go Up
« previous next »

Share me

Digg  Facebook  SlashDot  Delicious  Technorati  Twitter  Google  Yahoo
Smf

 


EEVblog Main Site EEVblog on Youtube EEVblog on Twitter EEVblog on Facebook EEVblog on Odysee