Switched Mode Power Supplies (SMPS) - Page 13

Cristi · 4th October 2010, 05:56 PM

A new SMPS version with unipolar output voltage plus aux. will be available this month in the following weeks. there will be few versions with output voltage from 12V to 80V suitable for various class D or T amplifiers.

SoldierAnt76 · 4th October 2010, 06:51 PM

Quote:

Originally Posted by robob

Sorry, I don't understand your answer :

MY question is, can I use the SMPS250QR or may be the connexelectronic A350SMPS or any other one power supplies with my 4 x 100W tk2050 t-amp ? I suppose I need around 350 W, 24 V and 16.4 A : for example I don't found any amperage indication for the SMPS250QR and I don't know if it's important (I suppose it is

).

The posts on pages 11-12 answer your question.

The power supplies currently available from Connex can be modified to produce the single output voltage required by the Hifimediy and Sure boards (as opposed to dual +/- voltages). But it'd be easier to wait for Cristi to finish the new SMPS, which won't require any mods.

I agree that the Meanwell S-350 power supply is bulky and hard to fit inside even a medium-sized case. So a smaller, more flexible SMPS would fill an important niche in the DIY audio market.

robob · 5th October 2010, 06:21 AM

I'll wait for the new SMPS : modifying a board is not my cup of tea (as we say in french

).

oneday · 19th October 2010, 05:32 AM

Hi Cristi,
I've just ordered a SMPS500R (+/-54V) and was wondering whether this will work OK with additional banks of 3 x 6800uf/63V caps each per rail between it and a classDaudio amp.

Cristi · 22nd October 2010, 12:00 PM

The total capacitance which the SMPS500R can accept depends on the startup time and the over-current tripping point. If the time is set longer, the capacitors can have larger value. i can use 10000uF capacitors if need, then the number of the caps can be reduced.
please contact me by mail regarding your order.

Cristi · 25th October 2010, 05:02 PM

The single output, high current SMPS, 24-30V available: Connexelectronic

alkasar · 25th October 2010, 05:34 PM

Quote:

Originally Posted by Cristi

The single output, high current SMPS, 24-30V available: Connexelectronic

excellent

some ot the tk2050 driven amps use STA517B power chip which requires up to 48V. Can the output range be adjusted to power this chip ?
also, what is the size ?
thanks.

col · 25th October 2010, 07:28 PM

from the other ConnexElectronics thread:

Cristi: "24V to 30V DC up to 20A high efficiency, small size, 100x110x40mm SMPS available."

col.

codegen · 27th October 2010, 02:13 AM

Hi Cristi!

Ive been sniffing around in your shop, but i cannot seem to find any SMPS`s fitting my subwoofer amp. I need +- 65-75vdc for this ones at around 800-1000w. I see you mention you have some coming up. Anytime soon?

Cristi · 27th October 2010, 02:20 AM

The A1000SMPS has the default output voltage in range of +-45 to +-60V. on request, other voltage values can be provided, up to +-90V DC. also, the SMPS2000R can provide such voltages, from +-40V to more than +-100V. for this, the output voltage must be confirmed upon order, since depends on the transformer turns ratio, and can be adjusted about 10% from the value which was set.

5th October 2010, 06:21 AM	#123
robob diyAudio Member Join Date: Jan 2010 Location: Val de Marne, near Paris (la Tour Eiffel, les Champs Elysées, Brigitte Bardot, tout ça quoi...)	I'll wait for the new SMPS : modifying a board is not my cup of tea (as we say in french ). __________________ Is-that a HTPC ?

25th October 2010, 07:28 PM	#128
col diyAudio Member Join Date: Feb 2008 Location: Melbourne, Victoria, Australia	from the other ConnexElectronics thread: Cristi: "24V to 30V DC up to 20A high efficiency, small size, 100x110x40mm SMPS available." col. __________________ http://www.minirig.org.au

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
switched-mode power suppies	Dimitar13	Everything Else	0	19th February 2008 12:50 AM
PFC Switched-Mode Power Supply	N-Channel	Power Supplies	57	13th June 2005 07:56 PM
Switched mode power supply	MMicke	Car Audio	3	19th February 2005 10:42 AM
Switched mode power supplies	Magura	Parts	13	3rd January 2004 05:44 PM
Switched Mode vs Linear Power Supply	royalmp2001	Solid State	4	12th July 2002 08:04 PM

New To Site?	Need Help?
Register to Participate Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read

4th October 2010, 05:56 PM	#121
Cristi Banned Join Date: Dec 2008 Location: Hong Kong or Europe	A new SMPS version with unipolar output voltage plus aux. will be available this month in the following weeks. there will be few versions with output voltage from 12V to 80V suitable for various class D or T amplifiers.

19th October 2010, 05:32 AM	#124
oneday diyAudio Member Join Date: Apr 2007	Hi Cristi, I've just ordered a SMPS500R (+/-54V) and was wondering whether this will work OK with additional banks of 3 x 6800uf/63V caps each per rail between it and a classDaudio amp.

22nd October 2010, 12:00 PM	#125
Cristi Banned Join Date: Dec 2008 Location: Hong Kong or Europe	The total capacitance which the SMPS500R can accept depends on the startup time and the over-current tripping point. If the time is set longer, the capacitors can have larger value. i can use 10000uF capacitors if need, then the number of the caps can be reduced. please contact me by mail regarding your order.

25th October 2010, 05:02 PM	#126
Cristi Banned Join Date: Dec 2008 Location: Hong Kong or Europe	The single output, high current SMPS, 24-30V available: Connexelectronic

27th October 2010, 02:13 AM	#129
codegen diyAudio Member Join Date: Dec 2006	Hi Cristi! Ive been sniffing around in your shop, but i cannot seem to find any SMPS`s fitting my subwoofer amp. I need +- 65-75vdc for this ones at around 800-1000w. I see you mention you have some coming up. Anytime soon?

27th October 2010, 02:20 AM	#130
Cristi Banned Join Date: Dec 2008 Location: Hong Kong or Europe	The A1000SMPS has the default output voltage in range of +-45 to +-60V. on request, other voltage values can be provided, up to +-90V DC. also, the SMPS2000R can provide such voltages, from +-40V to more than +-100V. for this, the output voltage must be confirmed upon order, since depends on the transformer turns ratio, and can be adjusted about 10% from the value which was set.