Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+ripple\s+in\s+B\+\s+supply\.\s*$/: 11 ]

Total 11 documents matching your query.

1. [Amps] ripple in B+ supply. (score: 1)
Author: "Jim Thomson" <Jim.thom@telus.net>
Date: Tue, 23 Mar 2010 20:21:33 -0700
On Behalf Of Jim Thomson Not that it is a big deal Jim, but what are you using to measure that RMS voltage with? Note that it is not a sine wave. 73 Gary K4FMX the 1st hv lytic... at the cold end of
/archives//html/Amps/2010-03/msg00526.html (8,332 bytes)

2. [Amps] ripple in B+ supply. (score: 1)
Author: "Jim Thomson" <Jim.thom@telus.net>
Date: Thu, 25 Mar 2010 06:03:37 -0700
<snip> <snip> Bill you are a bright and knowledgeable fellow but I think you should back off on this one. :-) REPLY: I appreciate your kind words Jim, but I have to respectfully disagree. All of the
/archives//html/Amps/2010-03/msg00605.html (10,141 bytes)

3. Re: [Amps] ripple in B+ supply. (score: 1)
Author: Paul Decker <kg7hf@comcast.net>
Date: Thu, 25 Mar 2010 13:56:36 +0000 (UTC)
I have to agree, it makes more sense to me to specify which P-P or  rms .  I know in this context the poster was talking about 50/60 hz , but  I think this is even more important when dealing with no
/archives//html/Amps/2010-03/msg00609.html (7,429 bytes)

4. Re: [Amps] ripple in B+ supply. (score: 1)
Author: Ian White GM3SEK <gm3sek@ifwtech.co.uk>
Date: Thu, 25 Mar 2010 14:23:11 +0000
PSU Designer will simulate a constant-current load which can step to a different value after a specified period of time. This allows you to simulate two levels of current draw and the worst-case step
/archives//html/Amps/2010-03/msg00611.html (7,944 bytes)

5. Re: [Amps] ripple in B+ supply. (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Thu, 25 Mar 2010 09:59:40 -0700
ORIGINAL MESSAGE: REPLY: Sorry, that method is only correct for a sine wave, not for a sawtooth. You would be close, probably good enough for ham purposes but not spot on. As you mention later in you
/archives//html/Amps/2010-03/msg00618.html (8,069 bytes)

6. Re: [Amps] ripple in B+ supply. (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Thu, 25 Mar 2010 10:15:23 -0700
ORIGINAL MESSAGE: REPLY: RMS is a useful piece of info, no argument there, but anyone who is seriously evaluating a PS will want to look at the output with a scope to see if there are any "funnies" g
/archives//html/Amps/2010-03/msg00619.html (8,385 bytes)

7. Re: [Amps] ripple in B+ supply. (score: 1)
Author: "Alex Eban" <alexeban@gmail.com>
Date: Sat, 27 Mar 2010 13:49:52 +0300
Since you cope with DC voltages, it makes sense to employ something close for the ripple and that average voltage. Fortunately, for the triangular wave form, the average is 1-3 of the peak to peak an
/archives//html/Amps/2010-03/msg00680.html (9,168 bytes)

8. Re: [Amps] ripple in B+ supply. (score: 1)
Author: "Gary Schafer" <garyschafer@comcast.net>
Date: Sat, 27 Mar 2010 22:26:25 -0400
Quote from the 2008 ARRL handbook power supply section: "percent ripple is the ratio of RMS value of the ripple to the dc value in terms of percentage". As RMS does the same amount of work as dc does
/archives//html/Amps/2010-03/msg00701.html (11,235 bytes)

9. Re: [Amps] ripple in B+ supply. (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Sat, 27 Mar 2010 22:26:03 -0700
ORIGINAL MESSAGE: REPLY: Ok,that works if you're equipped to measure the true RMS value of a sawtooth wave. I suspect most hams are not. Using a non-true RMS meter, who knows what you'll get. Did the
/archives//html/Amps/2010-03/msg00703.html (8,743 bytes)

10. Re: [Amps] ripple in B+ supply. (score: 1)
Author: "Bill, W6WRT" <dezrat1242@yahoo.com>
Date: Sat, 27 Mar 2010 22:38:27 -0700
ORIGINAL MESSAGE: REPLY: Quote from Wikipedia: "Ripple factor may be defined as the ratio of the root mean square (rms) value of the ripple voltage to the absolute value of the dc component of the ou
/archives//html/Amps/2010-03/msg00704.html (8,745 bytes)

11. [Amps] Ripple in B+ supply. (score: 1)
Author: "Jim Thomson" <Jim.thom@telus.net>
Date: Sun, 28 Mar 2010 06:34:40 -0700
REPLY: Ok,that works if you're equipped to measure the true RMS value of a sawtooth wave. I suspect most hams are not. Using a non-true RMS meter, who knows what you'll get. Did the handbook mention
/archives//html/Amps/2010-03/msg00718.html (8,600 bytes)

Current List: 1 - 11
Page: [1]
This search system is powered by Namazu