Author: Frank Goenninger DG1SBG <frank_goenninger@t-online.de>
Date: Mon, 3 Oct 2005 16:54:46 +0200
Hi all: I am finishing a power supply for a moderate amplifier (in terms of this reflector). As I am dealing with rather large caps I am wondering if am really right when calculating the stored energ
What is the advantage of using so much capacitance? For CW or SSB, 30 uf would likely reduce ripple enough. As you point out, the amount of energy stored in your capacitor is enormous, and this energ
Are you sure those aren't 420 uF caps instead of 4200 uF? That is a BIG cap! Dan -- K9ZF /R no budget Rover **QRP-l #1269 Check out the Rover Resource Page at: <http://www.qsl.net/n9rla> List Adminis
Author: Frank Goenninger DG1SBG <frank_goenninger@t-online.de>
Date: Mon, 3 Oct 2005 23:34:41 +0200
Am 03.10.2005 um 22:51 schrieb Dan K9ZF: Yeah - 4200 uF, rated for 400 V DC with an ESR of 35 mOhm, rated for 10 A ripple current. 3 inch wide and 4 inch height. ;-) 14 of them makes quite a capacito
You need to think very carefully how you are going to deal with the destructive force all that stored energy could inflict. Personally I wouldn't want more than about 20% of what you have there. It m
True, Frank, but 1600J is not that difficult to find a suitable glitch R for. Globar's SP series is what you need. Kanthal-Globar order desk - 716 286 7610 http://www.globar.com/ Richard L. Measures,
...the question is not ripple. A high capacitance here will improve the dynamic range of the current capability of the supply, what we nickname the stiffness (stable voltage on current peaks) But the
I try to keep the HV PS capacitance at about 25uF with a 50% safety margin. All the amps I've built have used 3800VDC to 5000VDC at one to two amps. Oh! in a couple supplies I used a choke input with
The 'PSU Designer' program ends all the guesswork. Follow the links from my site, and also collect the expanded rectifiers file for HV supplies: http://www.ifwtech.co.uk/g3sek/in-prac/best-of.htm#psu
Thanks much Ian, I downloaded pusd and expanded rectifiers file. Will give it a whirl. Larry N5BIP The 'PSU Designer' program ends all the guesswork. Follow the links from my site, and also collect t
R depends on tube type, Frank, 50 is about right for an 8877. On Oct 5, 2005, at 10:19 AM, Frank Goenninger DG1SBG wrote: Am 04.10.2005 um 04:48 schrieb R. Measures: On Oct 3, 2005, at 7:54 AM, Frank