SMPS design for power amps (Class D in particular) - Page 14

Genomerics · 30th October 2004, 06:09 PM

I tried to start a new thread and my browser says I should use the search function....

Any help appreciated.

DNA

GregD · 17th November 2004, 02:19 AM

Searching around I found this company has an amplifier kit with a switching power supply. I was thinking that their switching power supply might work quite nicely with either the Zappulse or UCD amp modules. What do you think? Anyone have any experience with A and T Labs?
http://www.a-and-t-labs.com/K6_Sw_Amp/index.htm

Maybe I should post this in one of the Zappulse or UCD threads, but this thread seemed to be the most pertinent.

koldby · 17th November 2004, 06:56 AM

Hi

Maybe this an even better deal for switching power supply for UcD:
http://www.cadaudio.dk/pwmpricelist.htm

Koldby

Golgoth · 17th November 2004, 07:39 AM

Quote:

Originally posted by koldby
Hi

Maybe this an even better deal for switching power supply for UcD:
http://www.cadaudio.dk/pwmpricelist.htm

Koldby

Would be if they sold them separate, look at their bottom line:
"NB Switch Mode Power Supplies are sold only together with our class-d/pwm amplifiers"

koldby · 17th November 2004, 07:46 AM

Ups...

Didn't notice that, but I have phoned them and I am waiting for a possible explanation for this.

I don't understand why they refuse to make a business out of selling SMPS???

Koldby

GregD · 17th November 2004, 03:36 PM

http://www.cadaudio.dk/pwmpricelist.htm

It looks like they sell the SMPS separately. On the above page they show a 1600VA SMPS for 256 euros. My concern was that the lowest output voltage they show is 60V. Would this be safe for the UCD400 modules since that is their max voltage?

Golgoth · 17th November 2004, 04:01 PM

Quote:

Originally posted by GregD
http://www.cadaudio.dk/pwmpricelist.htm

It looks like they sell the SMPS separately. On the above page they show a 1600VA SMPS for 256 euros. My concern was that the lowest output voltage they show is 60V. Would this be safe for the UCD400 modules since that is their max voltage?

If the UcD400's OV detection trips (which it probably won't), you can always deactivate it.

But I wouldn't be so confident cadaudio will sell the SMPS separately, you better ask them.

GregD · 17th November 2004, 04:21 PM

Oops, even after your prior post, I didn't read all the way to the bottom where it says that they don't sell the SMPS separately.

So, any opinions about the A and T Labs SMPS? I've checked with them, and they are willing to sell it separately from their amps.

GregD · 17th November 2004, 04:24 PM

Also, here in the U.S., with the current exchange rate, the A and T SMPS and cadaudio 1600VA SMPS prices are about the same.

30th October 2004, 06:09 PM	#131
Genomerics Account Disabled Join Date: Oct 2004	Off Topic I tried to start a new thread and my browser says I should use the search function.... Any help appreciated. DNA

17th November 2004, 02:19 AM	#132
GregD diyAudio Member Join Date: Aug 2004 Location: SoCal	A and T Labs SMPS? Searching around I found this company has an amplifier kit with a switching power supply. I was thinking that their switching power supply might work quite nicely with either the Zappulse or UCD amp modules. What do you think? Anyone have any experience with A and T Labs? http://www.a-and-t-labs.com/K6_Sw_Amp/index.htm Maybe I should post this in one of the Zappulse or UCD threads, but this thread seemed to be the most pertinent.

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Anyone making SMPS for power amps?	mr.duck	Parts	15	17th April 2007 11:32 AM
SMPS for class A amps?	folkeb	Power Supplies	2	24th March 2007 12:53 PM
How about a round-up of Class A kit power amps, or collectable vintage class A?	Brisso57	Solid State	4	14th February 2007 10:30 AM
SMPS for diy audio amps and multi-channel diy amps (and their power supplies)	tlparker	Solid State	18	31st August 2006 10:39 AM

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


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

17th November 2004, 06:56 AM	#133
koldby diyAudio Member Join Date: Jun 2003 Location: Ruds Vedby	Hi Maybe this an even better deal for switching power supply for UcD: http://www.cadaudio.dk/pwmpricelist.htm Koldby

17th November 2004, 07:46 AM	#135
koldby diyAudio Member Join Date: Jun 2003 Location: Ruds Vedby	Ups... Didn't notice that, but I have phoned them and I am waiting for a possible explanation for this. I don't understand why they refuse to make a business out of selling SMPS??? Koldby

17th November 2004, 03:36 PM	#136
GregD diyAudio Member Join Date: Aug 2004 Location: SoCal	http://www.cadaudio.dk/pwmpricelist.htm It looks like they sell the SMPS separately. On the above page they show a 1600VA SMPS for 256 euros. My concern was that the lowest output voltage they show is 60V. Would this be safe for the UCD400 modules since that is their max voltage?

17th November 2004, 04:21 PM	#138
GregD diyAudio Member Join Date: Aug 2004 Location: SoCal	Oops, even after your prior post, I didn't read all the way to the bottom where it says that they don't sell the SMPS separately. So, any opinions about the A and T Labs SMPS? I've checked with them, and they are willing to sell it separately from their amps.

17th November 2004, 04:24 PM	#139
GregD diyAudio Member Join Date: Aug 2004 Location: SoCal	Also, here in the U.S., with the current exchange rate, the A and T SMPS and cadaudio 1600VA SMPS prices are about the same.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)