A computer components & hardware forum. HardwareBanter

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » HardwareBanter forum » General Hardware & Peripherals » General
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Capacitors in PSU are dangerous?



 
 
Thread Tools Display Modes
  #191  
Old April 21st 04, 09:44 PM
Franc Zabkar
external usenet poster
 
Posts: n/a
Default

On Tue, 20 Apr 2004 02:23:00 +0100, "half_pint"
put finger to keyboard and composed:


"beav AT wn DoT com DoT au" "beav AT wn DoT com DoT au" wrote in message
...
half_pint wrote:
"Ken" wrote in message
...

On Sun, 18 Apr 2004 15:29:18 +0100, Michael Salem
wrote:


All Europe use 230V today. UK adapted from 240V to 230V
and the other countries from 220V to 230 volts.

Nobody ACTUALLY changed their voltage, at least initially.

In Sweden we did change from 220V to 230V a long time ago.
Yes I could measure that on my volt meter.
230.5V on all 3 phases and 400V between the phases 5 minutes ago.


You have 3 phase domestic power supplies in Sweden?


You can have it in Australia if you ask for it...


Is there any point?
Can you actually buy any domestic apps which use three phase?


Ducted domestic air conditioning systems often require 3-phase power.


- Franc Zabkar
--
Please remove one 's' from my address when replying by email.
  #192  
Old April 22nd 04, 01:23 AM
larrymoencurly
external usenet poster
 
Posts: n/a
Default

CBFalconer wrote in message ...
larrymoencurly wrote:


These bleeders are needed to equalize the voltage between
the input capacitors,

Inside my Enermax EV365P-VD.. I couldn't find any bleeder
resistors across the high voltage 680uF capacitors or
even empty spaces
I still don't understand why there were no bleeders because
I've seen them in even the cheapest PSUs
Should I solder an approx. 200K resistor across each of
those capacitors in the Enermax?


They are only needed for voltage equalization when capacitors are
mounted in series. In the primary circuit this would be connected
with switching from 115 to 230 v nominal input. If they are used
in a voltage doubler circuit, for 115, no equalization would be
needed. If they are put in series, for 230, equalization is
required.


This is what I don't understand because while I'm using 115VAC, this
Enermax PSU has a switch for 230VAC operation. I know that when PSUs
are shipped to countries where 230VAC is used, the line fuse is cut to
half the amperage, but are bleeder resistors added for those
countries? In the case of this Enermax there aren't any places on the
circuit board for them.
 




Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Dangerous upgrades, be aware !!! sigmun General 1 February 5th 04 09:29 PM
Leaking capacitors DFC General 15 January 22nd 04 08:53 PM
So few capacitors on motherboard? larrymoencurly General 32 January 8th 04 10:05 PM
FS: Lots of 500: 50V 22uF Electrolytic Capacitors :: $ 27 SHIPPED Jerry Rakar General 0 December 31st 03 11:45 PM


All times are GMT +1. The time now is 06:02 PM.


Powered by vBulletin® Version 3.6.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 HardwareBanter.
The comments are property of their posters.