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Develop ultra capacitor power supply and LiFePO4 battery power supply
Develop ultra capacitor power supply and LiFePO4 battery power supply
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Old 7th September 2018, 03:56 AM   #1
iancanada is offline iancanada  Canada
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Develop ultra capacitor power supply and LiFePO4 battery power supply
Default Develop ultra capacitor power supply and LiFePO4 battery power supply

I have been using LifePO4 batteries for my FIFO and DAC project for a long time. And also ultra capacitor power supply recently. I'm very happy with their performance and the sound quality.

Asynchronous I2S FIFO project, an ultimate weapon to fight the jitter

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Both ultra capacitor power supply and LiFePO4 power supply are passive power source. They are totally different to all kinds of regulators which are based on feedback. The most important thing is the perfect load response, much better than any regulator.

Both of them are ideal solution for DAC projects with amazing sound quality. Ulara capacitor power supply is a little bit better but the difference is minor. However the LiFePO4 power supply would be cheaper and easy to integrate into a all in one solution.

I'll work on both for sure. But I'd like to start from LifePO4 power supply.

Click the image to open in full size.
LiFePO4PowerSupply_1
by Ian, on Flickr

Ian
Attached Images
File Type: png UltraCapacitorSpecifications.png (392.6 KB, 4462 views)
File Type: png LifePO4Specifications.png (197.6 KB, 4543 views)

Last edited by iancanada; 7th September 2018 at 04:12 AM.
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Old 7th September 2018, 05:04 AM   #2
shattered_dream is offline shattered_dream  Germany
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Interested
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Old 7th September 2018, 05:07 AM   #3
comickitkit is offline comickitkit  Macao
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is it self-recharging while using battery?
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Old 7th September 2018, 11:55 AM   #4
iancanada is offline iancanada  Canada
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Develop ultra capacitor power supply and LiFePO4 battery power supply
When power is turned on, all the output rails will be pure LifePo4 battery rail and will be also 100% isolated from each other. I don't want to do anything to degrade the quality of the battery power supply. When it's turned off, all batteries will be charged by a CC-CV charger automatically. The charging progress will be managed and with monitoring.

Regards,
Ian
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Old 7th September 2018, 12:14 PM   #5
bvtrinh is offline bvtrinh  United States
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I am interested in the ultra capacitor power supply.
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Old 7th September 2018, 12:48 PM   #6
iancanada is offline iancanada  Canada
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Develop ultra capacitor power supply and LiFePO4 battery power supply
@ bvtrinh

The ultra capacitor power supply project has already been started for a while. The principle will be more complicated. For multiple power rails, the size will be bigger. And also, the overall cost will be higher. But anyway, it's coming.

Regards,
Ian
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Old 7th September 2018, 12:56 PM   #7
merlin el mago is offline merlin el mago  Europe
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Interested.
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Old 7th September 2018, 07:04 PM   #8
spikeyw is offline spikeyw  United Kingdom
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Interested in the battery option with a positive and negative rails. Will there be a GB.

Last edited by spikeyw; 7th September 2018 at 07:06 PM.
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Old 7th September 2018, 07:12 PM   #9
rayma is offline rayma  United States
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Quote:
Originally Posted by iancanada View Post
When power is turned on, all the output rails will be pure LifePo4 battery rail
and will be also 100% isolated from each other.
Ten batteries run around $150. For how many charging cycles will they last?
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Old 7th September 2018, 07:45 PM   #10
iancanada is offline iancanada  Canada
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Develop ultra capacitor power supply and LiFePO4 battery power supply
@rayma
I have a LifePO4 battery cell which started 4 years ago, for my daily use, still powerful by now. It should have been recharged for more than 400 times if I do it every 3 days. I really love this battery. Much better than any other chemical.

BTW, specification says 1000 times.

Ian
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