Hypex SMPS - When Is It Coming? Alternatives? - Page 2

Fin · 22nd December 2006, 09:54 AM

Quote:

Originally posted by ssanmor
You will require several supplies to power that: a main supply (I assume around +/-50V to +/-60V, that you could obtain with the supply you proposed, although it is so small that it won't work, then +/-5V for the input stage, and then +12V referenced to the negative rail for the driver.

How big should the supply be?

ssanmor · 22nd December 2006, 10:18 AM

Sorry, I read the datasheet a bit deeper.
It seems to need +/-45V at around 400-500W for full power and 5V for the modulator, the rest is generated internally. (please double check that).
So a SPS30 or SPS80 (for more power margin) could be very suitable, needing only a 7805 regulator to extract the 5V from the +12V aux supply

Fin · 22nd December 2006, 10:33 AM

The SPS80 looks amazing at 800W. That would definitely do the job.

Is it reasonable to assume that the SPS30 will be 300W?
If that is the case - does it just mean that the amp would not acheive full power using the smaller power supply?

ssanmor · 22nd December 2006, 10:36 AM

The SPS80 reachs 1KW easily.
The SPS30 is rated at around 400W (available from January), a bit tight if you are going to requiere full 250+250W or 500W from that amplifier.

Best regards
Sergio

Fin · 22nd December 2006, 10:42 AM

I'm probably not too interested in using it at full power/volume at any time. Hopefully my understaning is correct in thinking that using it a lower volumes is the same as using less of its power potential.....and this means that it is opperating in the lower distortion range. So - I'm wondering if it is worthwhile going for the bigger supply if I never intend to push the volume up very high?

ssanmor · 22nd December 2006, 10:57 AM

I think it should be OK with the SPS30 then. It will accept current peaks if demanded, only that perhaps you are not going to get the full 500W rms. Please contact us if you are interested (info@coldamp.com), this forum is not for commercial purposes.

Pjotr · 24th December 2006, 06:58 PM

Quote:

Originally posted by theseum
I'm looking to build a hypex amp with two UCD180's and I've read rumors that Hypex will soon be shipping an SMPS power supply -- does anybody know when this might happen?

Yup, did put up the same question a few weeks ago here. But it seems JP from Hypex is on holiday

Cheers

Pjotr · 25th December 2006, 11:53 AM

Quote:

Originally posted by ssanmor
I think it should be OK with the SPS30 then. It will accept current peaks if demanded, only that perhaps you are not going to get the full 500W rms. Please contact us if you are interested (info@coldamp.com), this forum is not for commercial purposes.

Hi ssanmor,

The UCD180’s will not accept more than + and – 48V (+ an – 45V to be on the safe side). But the SPS30 delivers 56V. On what time schedule can you have the SPS30 available for + and – 45V?

Is that a question of a different transformer or is it just a question of adjusting the voltage regulator loop?

Cheers

ackcheng · 25th December 2006, 05:11 PM

you can actually specify the voltage requirement to coldamp and they will make it for you.

ssanmor · 26th December 2006, 07:27 AM

Yes, you can specify the output voltage within +/-45 and +/-60V at ordering time with no added cost.

Best regards,
Sergio

22nd December 2006, 10:33 AM	#13
Fin diyAudio Member Join Date: Dec 2003 Location: -	The SPS80 looks amazing at 800W. That would definitely do the job. Is it reasonable to assume that the SPS30 will be 300W? If that is the case - does it just mean that the amp would not acheive full power using the smaller power supply? __________________ Regards Fin

22nd December 2006, 10:42 AM	#15
Fin diyAudio Member Join Date: Dec 2003 Location: -	I'm probably not too interested in using it at full power/volume at any time. Hopefully my understaning is correct in thinking that using it a lower volumes is the same as using less of its power potential.....and this means that it is opperating in the lower distortion range. So - I'm wondering if it is worthwhile going for the bigger supply if I never intend to push the volume up very high? __________________ Regards Fin

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22nd December 2006, 10:18 AM	#12
ssanmor diyAudio Member Join Date: Jan 2002 Location: Madrid	Sorry, I read the datasheet a bit deeper. It seems to need +/-45V at around 400-500W for full power and 5V for the modulator, the rest is generated internally. (please double check that). So a SPS30 or SPS80 (for more power margin) could be very suitable, needing only a 7805 regulator to extract the 5V from the +12V aux supply

22nd December 2006, 10:36 AM	#14
ssanmor diyAudio Member Join Date: Jan 2002 Location: Madrid	The SPS80 reachs 1KW easily. The SPS30 is rated at around 400W (available from January), a bit tight if you are going to requiere full 250+250W or 500W from that amplifier. Best regards Sergio

22nd December 2006, 10:57 AM	#16
ssanmor diyAudio Member Join Date: Jan 2002 Location: Madrid	I think it should be OK with the SPS30 then. It will accept current peaks if demanded, only that perhaps you are not going to get the full 500W rms. Please contact us if you are interested (info@coldamp.com), this forum is not for commercial purposes.

25th December 2006, 05:11 PM	#19
ackcheng diyAudio Member Join Date: Dec 2003 Location: hong Kong	you can actually specify the voltage requirement to coldamp and they will make it for you.

26th December 2006, 07:27 AM	#20
ssanmor diyAudio Member Join Date: Jan 2002 Location: Madrid	Yes, you can specify the output voltage within +/-45 and +/-60V at ordering time with no added cost. Best regards, Sergio