shield the E-field ?
#32
(2015-06-27, 18:10)Knickohr Wrote: Ahhh,

these f... electronic switching power supply.

Why do you not use an "old fashioned" power supply with an big and heavy transformer in it ?  If you use such an old linear regulator you have an build-in isolator-trafo in it. And the linear voltage regulator gives an excellent noise-free 5V supply. And if this doesn't work good enough, add an big choke, as Steph post before.

http://de.farnell.com/webapp/wcs/stores/...er=2431582

Powering the BO-station from PC is the worst thing you can do. A PC is a "mudslinger" as it's best ! Wink

Thomas

;-)   normal I don't just the  PC als power supply  only now  for 2 min  
and ok that ## thing is no good   why I have this to my Board ?
and maybe I have a old one some ware   but must look   
so that one from the iphone will also not work  ;-)
many info on 1 day
thanks  for al the hard thinking

Gert
Stations: 127, 845, 1845
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Messages In This Thread
shield the E-field ? - by Rothuize - 2015-06-22, 20:42
RE: shield the E-field ? - by Knickohr - 2015-06-23, 07:52
RE: shield the E-field ? - by Rothuize - 2015-06-23, 16:52
RE: shield the E-field ? - by cutty - 2015-06-23, 09:38
RE: shield the E-field ? - by Steph - 2015-06-23, 11:29
RE: shield the E-field ? - by cutty - 2015-06-23, 12:06
RE: shield the E-field ? - by Steph - 2015-06-23, 15:42
RE: shield the E-field ? - by cutty - 2015-06-23, 16:12
RE: shield the E-field ? - by Rothuize - 2015-06-23, 17:21
RE: shield the E-field ? - by Knickohr - 2015-06-23, 17:57
RE: shield the E-field ? - by cutty - 2015-06-23, 20:19
RE: shield the E-field ? - by Rothuize - 2015-06-24, 16:36
RE: shield the E-field ? - by Knickohr - 2015-06-24, 16:46
RE: shield the E-field ? - by Rothuize - 2015-06-24, 17:11
RE: shield the E-field ? - by Knickohr - 2015-06-24, 17:32
RE: shield the E-field ? - by cutty - 2015-06-24, 19:57
RE: shield the E-field ? - by Rothuize - 2015-06-24, 21:23
RE: shield the E-field ? - by cutty - 2015-06-24, 22:26
RE: shield the E-field ? - by cutty - 2015-06-25, 15:06
RE: shield the E-field ? - by Rothuize - 2015-06-27, 13:04
RE: shield the E-field ? - by Knickohr - 2015-06-27, 14:07
RE: shield the E-field ? - by cutty - 2015-06-27, 14:28
RE: shield the E-field ? - by Knickohr - 2015-06-27, 14:40
RE: shield the E-field ? - by Rothuize - 2015-06-27, 17:07
RE: shield the E-field ? - by Knickohr - 2015-06-27, 17:19
RE: shield the E-field ? - by Rothuize - 2015-06-27, 17:33
RE: shield the E-field ? - by Steph - 2015-06-27, 17:41
RE: shield the E-field ? - by Rothuize - 2015-06-27, 18:06
RE: shield the E-field ? - by Knickohr - 2015-06-27, 17:42
RE: shield the E-field ? - by Rothuize - 2015-06-27, 18:00
RE: shield the E-field ? - by Knickohr - 2015-06-27, 18:10
RE: shield the E-field ? - by Rothuize - 2015-06-27, 18:26
RE: shield the E-field ? - by Rothuize - 2015-07-26, 12:40

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