DPS-500 Innovative Power supply for Audio

[AP2]

Hi all,
I want to describe this revolutionary PSU because it solves the problems of RFI / EMI and is the only one who can provide truly amazing performance. (Even low-power 30-50W) amplifier has a very tough play. This is due to the output voltage very "firm" as well as being absolutely clean as a battery.
I think that this information can resolve the supply of high-end amplifiers in a small space and weight.
I have tested this model with these amps. (One DPS-500)
Hypex UCD700 (classic rock and music) in this latter is really exciting.
Hypex 2xUCD400 (2x350w rms (4R)
AudioPower DXA-600 (4R) OR (2xSDA-400 at Bridge 8R)
B & O ICE500A (4R)
National LM3866-(3 chips).(4R)
I am available to other tests and measurements on your advice, with pleasure.
P.S. Soon I'll put up this post with the measures and internal signals to the power supply under various static / dynamic loads.

Best Regards

[wingman]

can you give some more info about dsp-500?

[AP2]

Originally Posted by wingman

can you give some more info about dsp-500?

Hi,
Yes, I want describe all function and concept of this new PSU on this thread.(scheme,measure and internal signal).
This PSU not use PWM.
if you want,download datasheet (preliminary) on audiopower.it

Regards

[savu]

so if it is not PWM then it might be resonant?

regards,
savu

[AP2]

Originally Posted by savu

so if it is not PWM then it might be resonant?

regards,
savu

Hello Savu,
no, this PSU uses two "engines".
A fixed PWM at 50% with special wave (square wave with rounded corners) and driving it custom transformer.
the other is a dual sensing of current driving a power stage DC / AC very fast.
I am preparing a minimum measure and diagram to put them in this post ..
In practice, the voltage regulation does not use PWM.
This system solves the low PSRR also on the class D.

regards

[Yves Smolders]

Is the DPS-800 on the site using the same principle? Very interesting and price competitive compared to a dual SMPS400A400 from Hypex.

[Yves Smolders]

Also, is there support for DC protection power cutoff like ok the Hypex SMPS? ty!

[AP2]

Hi,
Yes, DPS-800 uses the same principle of high voltage analog controller.
Both models Have ISO-input (close to gnd) from amplifier, eg. DC or thermal protection.
these two models are designed exclusively for amateur (audiophile amplifiers) not for commercial audio.
warmth of the bass and the ability to deliver a 'hit' ... unbelievable.
Normally this effect can be heard on a 30Kg. amplifiers AB class.

Regards

[Yves Smolders]

Thank you AP2 - as the Hypex amps don't have their own DC protection circuits, I'll have to look into maybe doing this another way

[AP2]

Originally Posted by Yves Smolders

Thank you AP2 - as the Hypex amps don't have their own DC protection circuits, I'll have to look into maybe doing this another way

Hi,
I know that UCD700 have this protection (open collector output). and input also.
Becouse a customers use our DPS-600 with UCD700 and use both protections, input (for ready dc voltage output) and output for fast-break PSU.
maybe UCD400 not have?
In this case is easy design it..
Regards