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SMPS for Audio Applications

OP
MicroAudio

MicroAudio

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Thread Starter #101
Pre-release of the SMPS1K-PFCR2 with the below added and updated futures.

  • Plug and play connector (Pin to Pin) for Purifi amplifiers, no more splitter PCBs or custom wiring is needed.
  • Ultra-low power consumption in standby mode 0.1W @ 265VAC .
  • 12V trigger input, turn ON/OFF the SMPS from any device that supports 12V trigger, like AV receivers.
  • The standby function eliminates the need for any external turn ON delay circuit or any inrush current limiter circuit.
  • Standby input supports LED power without the need for any external power source, only 2 wires are needed to achieve the ON/OFF function with the LED indicator.
  • All AUX outputs are short circuit protected, the regulated output & the unregulated output & the VDR output.
  • Supports +-24VDC REGULATED outputs
  • 2 Years warranty **
 
Last edited:
OP
MicroAudio

MicroAudio

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Thread Starter #103
Напишите пожалуйста габаритные размеры блока питания SMPS1K-PFCR2.
1- Please write in English, as I don't understand Russian.
2- All details can be found on the web-store.
3- I cannot ship to Russia. I am sorry for that

Thank you
 
Joined
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Hi all,

Just received my SMPS1K-PFCR2 from MicroAudio today....looks good and hats off to Sami for the competent packaging that prevented any damage in shipping.

Next up, build a monoblock aluminum case to house the SMPSiK-PFCR2 and a Purifi EVAL2.

John

IMG_1362d.jpg
 

arczar

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I would also like to write something about Micro Audio SMPS.

My SMPS is 630G, dual voltage +/- 54V. It powers the power amplifier on the irs2092 and the input buffers on the OPA134 (regulated +/-12V). I also power the fan from the 12V connector. It cannot be seen in the photo. The build quality is perfect. Customer service too - Cresnet helped me a lot and answered my questions patiently. Thank you very much.

Previously, I had a different converter and had a problem with noise in the tweeter. Now the problem will be gone. I will probably buy a version with a single power supply for the tpa3255.

irs2092.jpg
 
OP
MicroAudio

MicroAudio

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Thread Starter #107
I would also like to write something about Micro Audio SMPS.

My SMPS is 630G, dual voltage +/- 54V. It powers the power amplifier on the irs2092 and the input buffers on the OPA134 (regulated +/-12V). I also power the fan from the 12V connector. It cannot be seen in the photo. The build quality is perfect. Customer service too - Cresnet helped me a lot and answered my questions patiently. Thank you very much.

Previously, I had a different converter and had a problem with noise in the tweeter. Now the problem will be gone. I will probably buy a version with a single power supply for the tpa3255.

View attachment 119181

Thank you for your support!
 
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I'm interested in building a Hypex NC400 amplifier, and looking for suitable power supplies. Which of your SMPS models would you recommend to power either 2 or 4 NC400 modules?

Also, do any of them fit into a 1U size chassis (40mm interior height), or do you have any low-height SMPS in development?

Thanks,
Chad.
 
OP
MicroAudio

MicroAudio

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Thread Starter #110
For the NC400 at +-64VDC, you can choose between SMPS1K-PFC or the new SMPS800-D.

Its all based on what futures you are looking for in a SMPS.

None of my SMPS units fits in a 1 U size chassis at the moment.

Thank you.
 
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I am going to buy SMPS630-G for my new AB amplifier.
However, I have read the warning that: maximum output capacity
The SMPS can accept 12,000 uF per bus, so the total is 24,000 uF.
Increasing this value simply causes the overcurrent protection to trip.
How can i solve this problem?
Structural scheme.jpg
 
OP
MicroAudio

MicroAudio

Member
Manufacturer
Joined
Mar 27, 2020
Messages
99
Likes
97
Location
AMMAN - JORDAN
Thread Starter #112
I am going to buy SMPS630-G for my new AB amplifier.
However, I have read the warning that: maximum output capacity
The SMPS can accept 12,000 uF per bus, so the total is 24,000 uF.
Increasing this value simply causes the overcurrent protection to trip.
How can i solve this problem?
View attachment 142483

No problem

I can adjust it to accept more. But not more than 40000uf

Thanks
 
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