JCAT - power supplies and other products

Marcin_gps

VIP Donor/Industry Expert
Jun 24, 2015
120
54
250
jcat.eu
#1
Hi Guys,

The JCAT OPTIMO 3 DUO PSU was discussed already in the m12 switch gold thread, but I think I need to start a separate topic especially that there are other new products coming. I will post information about the developments in this thread.

Let me start with some information about the OPTIMO 3 DUO power supply which is JCAT's best product so far.

OPTIMO 3 DUO

NO COMPROMISE ULTRA-LOW NOISE DUAL-OUTPUT LINEAR POWER SUPPLY
Designed to partner JCAT USB & NET Cards, as well as any other component requiring up to 3A load, the OPTIMO 3 DUO will drastically improve every aspect of sound.





THE BEST POSSIBLE QUALITY POWER
Designed to provide the best possible quality power to our USB & NET Cards; default voltage is 5V at each output. As it can be used with any other equipment (DAC, USB converter, network equipment, etc.) that requires up to 3A of DC power, 9V and 12V versions are available too -please specify Voltage in a purchase note. Each output can be made with a different Voltage and different connector type/size at no additional cost!

TWO INDEPENDENT DC OUTPUTS
Features two independent galvanically isolated DC outputs, each capable of delivery up to 3A to load. Because each output has an independent isolated ground, it is possible to power any two devices at the same time, without any degradation.



JCAT TRUE LINEAR DESIGN
In contrast to many so called 'linear power supplies' on the market, the OPTIMO 3 DUO does not use any switching power supplies.
12x State-of-the-art LT3045 ultra low noise linear voltage regulators (6x per output) are used. The result is perfectly clean DC voltage with noise level below measuring range (< 2uV).
Regulator board is optimized for low noise and impedance. PCB is made with double thick copper, components are surface mount and layout is optimized for shortest signal path.





Design for specific fixed output voltage allowed us to have optimal operating point and minimal thermal stress for all components. Even that no user adjustable voltage is a bit an disadvantage this is the best solution from performance point of view. It features low noise discrete rectifier made of high quality Schottky diodes.
Six state of an art LT3045 linear regulators are paralleled not only for high output current but also for noise and output impedance performance boost. In controlled environment the RMS noise is below what we can measure.

SUPERB TRANSFORMER
Our bespoke massive low induction 100VA transformer with magnetic and electrical shielding is sealed in stainless steel cup with epoxy resin, this guarantees noiseless operation. Transformer is designed to deliver all it’s power in linear part of core magnetic characteristic, with minimal stray field and impedance for best performance. It has Teflon insulated UP-OCC connection cables, and is mechanically decoupled from the chassis by industry standard vibration dumpers.



SUPREME AUDIO-GRADE COMPONENTS
The OPTIMO 3 DUO incorporates supreme quality audio grade capacitors. Internal wiring is made of high-purity OCC copper. The enclosure and the layout of the PSU is optimized for lowest possible mechanical noise. All these enhancements, developed through intensive listening tests, significantly raise performance.

THE BEST CONNECTIONS
For pure voltage transmission the OPTIMO 3 DUO comes with high quality sockets from Furutech and Neutrik. Two high quality 1.2m PC-OCC 0.7mm² double shielded DC cables with 5.5mm x 2.1mm DC barrel plugs (2.5 plugs available on special request) are included which guarantee superb connection. We use high quality gold plated billet aluminium plugs.




CHASSIS
OPTIMO 3 DUO chassis is bended from a 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 used 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 OPTIMO 3 DUO PSU are made of non magnetic stainless steel.

SPECIFICATION:
  • Features two independent galvanically isolated DC outputs, each capable of delivery up to 3A to load.
  • Designed to provide the best possible quality power to our USB & NET Cards; default voltage is 5V at each output. As it can be used with any other equipment (DAC, USB converter, network equipment, etc.) that requires up to 3A of DC power, 9V and 12V versions are available too - please specify Voltage in a purchase note. Each output can be made with a different Voltage & connector type/size at no additional cost!
  • Truly linear design (no switching power supplies anywhere)
  • Bespoke massive low induction 100VA transformer with magnetic and electrical shielding, sealed with epoxy resin for noiseless operation.
  • Ultra fast low noise rectifier.
  • Supreme quality audio grade capacitors.
  • State-of-the-art ultra low noise linear voltage regulators (LT3045).
  • Noise below measuring range (< 2uV)
  • Low-resonance enclosure made of non magnetic materials.
  • Supreme quality sockets (Furutech IEC, Neutrik Speakon for DC outputs).
  • Comes with 2 high quality 1.2m PC-OCC 0.7mm² double shielded DC cables with 5.5mm x 2.1mm DC barrel plugs (2.5 plugs available on special request).
  • Protection features: short circuit protection, current limit and thermal overload protection, transient overvoltage protection.
  • Manufactured in EU with either 115/230V input.

REVIEWS









 

Marcin_gps

VIP Donor/Industry Expert
Jun 24, 2015
120
54
250
jcat.eu
#2
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.

1600088337649.png



KEY DESIGN FEATURES:


TRULY LINEAR ATX POWER SUPPLY
OptimoATX will be truly linear ATX power supply capable of 23A on all main lines (12, 5V and 3.3V), fully compatible with ATX2.0 specification. It is designed to be able to power computer platforms with processors up to 95W TDP. Unlike other similar products on the 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.

1600088337700.png

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).

1600088337744.png


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.

1600088337792.png

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


DISCLAIMER
All above information and specifications are preliminary/prototype and final product may vary.
 
Dec 18, 2019
27
13
5
35
#3
Has anyone compared this with the Paul Hynes SR7 ?
Given the sheer wait time and ‘obstacles’ in acquiring one , IF the OPTIMO performs at an equal level to the SR7 , would be welcome news to all us.
 

Marcin_gps

VIP Donor/Industry Expert
Jun 24, 2015
120
54
250
jcat.eu
#4
Has anyone compared this with the Paul Hynes SR7 ?
Given the sheer wait time and ‘obstacles’ in acquiring one , IF the OPTIMO performs at an equal level to the SR7 , would be welcome news to all us.
I'd be happy to loan a demo unit for such a comparison.

Regards,
Marcin
 
#5
Optimo ATX will feature set of ATX connectors
I think this is a very interesting product, as there is no need to go through a DC-ATX converter. So the ATX Molex sockets can be wired directly.

What PIN quality are the Molex connections made with? For example, I like to use gold-plated PINs. For example
Molex Part Number: 457501212
Mini-Fit Plus Crimp Terminal, 18-20 AWG, Bag, Copper (Cu) Alloy, Gold (Au) Selective
 
Sep 15, 2020
1
3
5
#6
Hello,

My name is Jaroslaw and I'm responsible for Jcat power supplies. Marcin asked me to joint this discussion to answer your technical questions about this products.

What PIN quality are the Molex connections made with? For example, I like to use gold-plated PINs. For example
We use this high quality gold plated pin's in our test rig together with high quality 18AWG wires atm.

IMG_20200915_210929.jpg
 

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