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OPTIMO_ATX - truly linear ATX power supply

Marcin_gps

By Marcin_gps
in JCAT

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Marcin_gps

Marcin_gps

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OPTIMO_ATX

SNEAK PEAK

 

In JCAT we work to develop and bring to you new exciting products. Here is a short sneak peak of what we work on right now the JCAT Optimo ATX linear power supply. We are in advanced stage of R&D and hope to launch production by the end of the year.

 

 

 

 

KEY DESIGN FEATURES:

 

TRULY LINEAR ATX POWER SUPPLY

OptimoATX will be truly linear ATX power supply capable of 23A on all main lines (12, 5 and 3.3V) fully compatible with ATX2.0 specification. It is designed to be able to power computer platforms with 95W TDP processors. Unlike other similar products on market it will use only low noise linear regulators for all voltages including control circuits. Cutting edge linear regulators for noise performance <25uV RMS will be used. For best stability regulator circuit will have analog cable voltage drop compensation.

 

SUPERB TRANSFORMERS

Three bespoke massive low induction transformers with magnetic and electrical shielding sealed in stainless steel cup with epoxy resin that guarantees noiseless operation will be used. Transformers are designed to deliver all it’s power in linear part of core magnetic characteristic, with minimal stray field and impedance for best performance. One 400VA for 12V line we found to be most important for sound quality, second for 5V and 3.3V lines and third for all other less important voltages. 

 

ACTIVE RECTIFIER

For OptimoATX massive current we designed unique active rectifier. It’s using MOS FET transistors instead of diodes that are switched at zero points of AC waveform by special circuit. This ensures best noise performance, low impedance and very low heat dispatch. 

MICROPROCESOR CONTROL

OptimoATX will use industry standard low noise DSP for power management, soft start and ATX control functions. This will ensure best compatibility with ATX standard of complex linear design and trouble free user experience. Control circuit will be separated from rest of sensitive circuitry and will have own galvanically isolated linear power supply.

CONVENIENT CONNECTIONS

Optimo ATX will feature set of ATX connectors (including CPU, PCIE and drives connectors) as well as two AUX connectors for 5V and 12V aux power (active after power up cycle of computer).

 

 

CHASSIS

OptimoATX chassis will be bended from single thick sheet of laser cut stainless steel for high structural rigidity and low mechanical resonance. Stainless steel is not only much stronger than aluminium typically use in such enclosures, but also is a non magnetic material. This is very important for best performance as magnetic materials can introduce additional noise. For this reason also all bolts, nuts and other small mechanical parts in our power supply will ne made of non magnetic stainless steel.

 

 

AUDIO GRADE COMPONENTS

High grade audio components will be used. OptimoATX will be made in EU to very high standard for best audible results.

DISCLAIMER

All above information and specifications are preliminary/prototype and final product may vary.

 

 

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JPLAY & JCAT Founder

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Marcin_gps

Marcin_gps

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3 hours ago, ASRMichael said:

@Marcin_gps with your Duo LPS being a competitive price point. Are you expecting your new ATX to be of similar price? or what commercial price point you trying to hit?

I am not trying to hit any price. With the level of quality and reliability we are are going to provide, we can't compete in terms of pricing. 

 

This is a pioneer product which does not have a competition. 

 

For now I can say that it will be more expensive than the OPTIMO 3 DUO. 

 

But it will deliver the sound that is not just a little bit better from today's solutions. 

 

More details to come... 

 

Regards, 

Marcin

JPLAY & JCAT Founder

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Patatorz

Patatorz

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I’m using today an atx power supply to feed a server only (not player) and the impact of this atx is huge. Depending on the price not sure it would makes sense to me to invest. Perhaps more designed for people having a player/server based PC. Time and budget will tell 🙂


at this point of time, waiting for the netcard XE 🙂

 

anyway this is a really good move forward for audiophiles people. Congrats @Marcin_gps

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ASRMichael

ASRMichael

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2 hours ago, AudioDoctor said:

so... for those of us with PCs similar to the CAPS server Chris built, is this even remotely enough to power it?

What's strange is the above specification says capable of 23amps, but then same it's capable of 95w TDP. (At 12v is circa 8amps. So maybe the it's not a continuous 23amps, maybe @Marcin_gps can confirm?

 

I currently use 10a LPS, (12v) & run my i9 9900k @5.0ghz with HQPlayer (128DSD) and HDPlex case. 

 

If JCAT is capable of continuous 23A then i9 10900k should work with ease, but will need good cooling, only passive case I know that can do that is Turemetal UP10. If using a CAPS watercooler or fans then it should work. 

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Marcin_gps

Marcin_gps

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3 hours ago, ASRMichael said:

What's strange is the above specification says capable of 23amps, but then same it's capable of 95w TDP. (At 12v is circa 8amps. So maybe the it's not a continuous 23amps, maybe @Marcin_gps can confirm?

 

I currently use 10a LPS, (12v) & run my i9 9900k @5.0ghz with HQPlayer (128DSD) and HDPlex case. 

 

If JCAT is capable of continuous 23A then i9 10900k should work with ease, but will need good cooling, only passive case I know that can do that is Turemetal UP10. If using a CAPS watercooler or fans then it should work. 

Optimo ATX nominal continuous output current will be 23A on each of main rails (12, 5 and 3.3V). The capability to support 95W processor platforms comes from Intel recomendations for power supplies.
 
image.png.3aa32318852ee9a2ed01d1302596f15e.png
 TDP has nothing to do with actaual power consumption of processor. It stands for Thermal Design Power it is more theoretical term describing the chip ability to generate heat.

JPLAY & JCAT Founder

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Marcin_gps

Marcin_gps

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6 hours ago, Patatorz said:

I’m using today an atx power supply to feed a server only (not player) and the impact of this atx is huge. Depending on the price not sure it would makes sense to me to invest. Perhaps more designed for people having a player/server based PC. Time and budget will tell 🙂


at this point of time, waiting for the netcard XE 🙂

 

anyway this is a really good move forward for audiophiles people. Congrats @Marcin_gps

Which ATX PSU are you using now? 

JPLAY & JCAT Founder

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  • 3 weeks later...
Pablooo

Pablooo

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On 9/15/2020 at 8:50 PM, Marcin_gps said:

This is a pioneer product which does not have a competition. 

 

For now I can say that it will be more expensive than the OPTIMO 3 DUO. 

 

But it will deliver the sound that is not just a little bit better from today's solutions. 

I am trying to understand where to place this power supply in terms of quality.  Is the aim to match or improve the Optimo 3 with regard to the 5v lines that, for example, feed the Jcat usb and net cards?  I read that it will beat all competition, does that include your own Optimo 3 (which is not comparable in terms of functionality of course)?

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Marcin_gps

Marcin_gps

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50 minutes ago, Vlaag said:

As a fan of the Ansuz feets and isolators, will they retro fit on this case, can the feets be replaced or are they already some fancy on? Thx

You will be able to use the Ansuz feets. There will be a small rubber type isolators included.

 

I personally use foQ footers under my components with good results. 

 

17 minutes ago, Pablooo said:

I am trying to understand where to place this power supply in terms of quality.  Is the aim to match or improve the Optimo 3 with regard to the 5v lines that, for example, feed the Jcat usb and net cards?  I read that it will beat all competition, does that include your own Optimo 3 (which is not comparable in terms of functionality of course)?

 

Like I wrote in the USB XE thread, the Optimo 3 Duo will perform better if used with low-powered components.  The 5V AUX output is shared with ATX lines, so it's still a good idea to use the Optimo 3 Duo for the cards for best  performance.

 

The quality is exceptional, but slightly below optimo for that purpose. It is simply not possible to achieve that kind of low-noise at 23A. 

 

That said, I think the OPTIMO ATX will be an attractive all-in-one package.

JPLAY & JCAT Founder

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Marcin_gps

Marcin_gps

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On 10/3/2020 at 2:47 PM, ASRMichael said:

Marcin what will make your new ATX LPS so special it will beat all competition? 

 

This is world's first truly linear ATX power supply.  Other power supplies on the market are hybrid switching type power supplies with some linear regulation - it's not the same. 

 

Quality backed up by real world performance, not just marketing slogans. 

 

Reliability - the power supplies are built to last.

 

Safety: CE compliance proven in documentation and lab tests.

JPLAY & JCAT Founder

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Patatorz

Patatorz

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10 hours ago, Marcin_gps said:

 

This is world's first truly linear ATX power supply.  Other power supplies on the market are hybrid switching type power supplies with some linear regulation - it's not the same. 

 

Quality backed up by real world performance, not just marketing slogans. 

 

Reliability - the power supplies are built to last.

 

Safety: CE compliance proven in documentation and lab tests.

Thanks for the information. Will have a closer look to « competition » designs.

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