Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.electronics.design > #446560

Re: ugliest power supply

Show all headers | View raw

"John S" <Sophi.2@invalid.org> wrote in message 
news:o7amg7$1cp$2@dont-email.me...
> It does matter. And I know how to use lab supplies appropriately. Please
> do not assume I am so far below your intelligence that I need for you to
> hold my hand. The professionals here do not need it either. If you have 
> that problem, just ask for help.

Excuse me?  Where was my message patronizing or incorrect?

Proper use goes a long way, and I could've chosen to speak about that 
instead; but I suppose you would've been mad about that, anyway.

Nevermind that there are hundreds of amateur hackers on this newsgroup, who 
appreciate the caution from experienced users.


>> The control loop probably responds equally slowly, too, so when it comes
>> out of short, it overshoots to twice the setpoint.
>
> On *every* power supply? You can't possibly know that.

"Probably" == "every"?  What?

I've sampled a couple of those cheap Chinastan power supplies.  None are 
worth the scrap metal they're made from.  I have not sampled this particular 
one.

If one of those amateur hackers were interested in a fix-it project, they're 
a fine starting point, and a good way to explore everything from proper 
control loop compensation, to proper heatsinking, to proper mechanical 
design -- they variously exhibit severe problems in one or more of these 
areas.

Tim

-- 
Seven Transistor Labs, LLC
Electrical Engineering Consultation and Contract Design
Website: http://seventransistorlabs.com 

Back to sci.electronics.design | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

ugliest power supply John Larkin <jjlarkin@highlandtechnology.com> - 2017-02-04 12:40 -0800
  Re: ugliest power supply tabbypurr@gmail.com - 2017-02-04 12:50 -0800
    Re: ugliest power supply bitrex <bitrex@de.lete.earthlink.net> - 2017-02-04 16:17 -0500
      Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-04 18:31 -0500
        Re: ugliest power supply mike <ham789@netzero.net> - 2017-02-04 16:40 -0800
          Re: ugliest power supply bitrex <bitrex@de.lete.earthlink.net> - 2017-02-04 23:28 -0500
            Re: ugliest power supply mike <ham789@netzero.net> - 2017-02-04 23:13 -0800
          Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-05 00:20 -0500
      Re: ugliest power supply Pimpom <pimpom@invalid.com> - 2017-02-05 10:48 +0530
        Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-05 00:44 -0500
          Re: ugliest power supply tabbypurr@gmail.com - 2017-02-04 22:10 -0800
          Re: ugliest power supply bitrex <bitrex@de.lete.earthlink.net> - 2017-02-05 10:38 -0500
        Re: ugliest power supply tabbypurr@gmail.com - 2017-02-04 21:54 -0800
  Re: ugliest power supply bitrex <bitrex@de.lete.earthlink.net> - 2017-02-04 16:15 -0500
  Re: ugliest power supply Jeff Liebermann <jeffl@cruzio.com> - 2017-02-04 18:26 -0800
    Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-04 22:23 -0500
  Re: ugliest power supply legg <legg@nospam.magma.ca> - 2017-02-04 22:10 -0500
    Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-04 22:41 -0500
      Re: ugliest power supply legg <legg@nospam.magma.ca> - 2017-02-05 22:12 -0500
        Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-06 17:22 -0500
          Re: ugliest power supply legg <legg@nospam.magma.ca> - 2017-02-07 09:15 -0500
  Re: ugliest power supply "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-02-05 04:27 -0600
    Re: ugliest power supply Lasse Langwadt Christensen <langwadt@fonz.dk> - 2017-02-05 07:45 -0800
  Re: ugliest power supply doh@yipee.com - 2017-02-05 10:17 -0800
    Re: ugliest power supply John Larkin <jjlarkin@highlandtechnology.com> - 2017-02-05 10:57 -0800
      Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-05 14:29 -0500
        Re: ugliest power supply bitrex <bitrex@de.lete.earthlink.net> - 2017-02-05 15:21 -0500
        Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-06 08:55 -0500
      Re: ugliest power supply Pimpom <pimpom@invalid.com> - 2017-02-06 10:51 +0530
      Re: ugliest power supply doh@yipee.com - 2017-02-06 12:14 -0800
  Re: ugliest power supply John S <Sophi.2@invalid.org> - 2017-02-05 14:07 -0600
    Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-05 15:50 -0500
    Re: ugliest power supply "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-02-06 07:02 -0600
      Re: ugliest power supply John S <Sophi.2@invalid.org> - 2017-02-06 14:34 -0600
        Re: ugliest power supply "Tim Williams" <tiwill@seventransistorlabs.com> - 2017-02-06 19:50 -0600
  Re: ugliest power supply legg <legg@nospam.magma.ca> - 2017-02-07 10:14 -0500
    Re: ugliest power supply speff <spehro@gmail.com> - 2017-02-07 08:22 -0800
      Re: ugliest power supply legg <legg@nospam.magma.ca> - 2017-02-07 21:43 -0500
        Re: ugliest power supply Spehro Pefhany <speffSNIP@interlogDOTyou.knowwhat> - 2017-02-07 22:51 -0500
          Re: ugliest power supply legg <legg@nospam.magma.ca> - 2017-02-08 10:24 -0500
  Re: ugliest power supply "Tom Del Rosso" <fizzbintuesday@that-google-mail-domain.com> - 2017-02-11 10:59 -0500
    Re: ugliest power supply legg <legg@nospam.magma.ca> - 2017-02-11 15:32 -0500

csiph-web