Develop ultra capacitor power supply and LiFePO4 battery power supply

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TheShaman

Member
Joined 2007
iancanada said:
My Fifo is safe to be fed with 3.3V rather than 5V without problem. On board LDO will be bypassed automatically if the drop voltage is less than 0.3V.

For clock board, is also OK, but to reach best possible sound quality, I would suggest remove or bypass on board LDOs if you feed it with 3.3V battery rails.

Regards,
Ian
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Ian, great work as always!

I have an original I2S FIFO with SPDIF input board, running off a typical super regulator PSU. Always wanted to move to batteries, but hesitated because of the hassle to charge, monitor status etc.

Would it be possible (and make sense) to use this battery batter board to power my setup?
 
C

carlmart

Member
Joined 2001
preciseaudio.com
TheShaman said:
Ian, great work as always!

I have an original I2S FIFO with SPDIF input board, running off a typical super regulator PSU. Always wanted to move to batteries, but hesitated because of the hassle to charge, monitor status etc.

Would it be possible (and make sense) to use this battery batter board to power my setup?
Click to expand...

By super-regulator you mean a Jung regulator?

Have you compared the audio quality with the superregulator and with the batteries?

Are the batteries fed directly or through a switch regulator supply?
 
iancanada

iancanada

Member
Joined 2009
twitter.com/iancanadaTT
Paid Member
ofswitched said:
Ian, Can LiFePO4 battery power supply be on manually charged? I don't want to charge automatically without paying attention to the charging situation.
Click to expand...

Both charging voltage and charging current are monitored (with showing on OLED display) at real-time. The end charging voltage is also programmable. Once the end charging voltage is reached, the charging current will be stopped and the charger will go to standby mode. That's even better and safer than manual charging. However, if you want, it is still possible finding a way to stop the charging progress manually.

Regards,
Ian
 
iancanada

iancanada

Member
Joined 2009
twitter.com/iancanadaTT
Paid Member
TheShaman said:
Ian, great work as always!

I have an original I2S FIFO with SPDIF input board, running off a typical super regulator PSU. Always wanted to move to batteries, but hesitated because of the hassle to charge, monitor status etc.

Would it be possible (and make sense) to use this battery batter board to power my setup?
Click to expand...

Yes, it's possible.

Regards,
Ian
 
O

ofswitched

Banned
Joined 2018
iancanada said:
Both charging voltage and charging current are monitored (with showing on OLED display) at real-time. The end charging voltage is also programmable. Once the end charging voltage is reached, the charging current will be stopped and the charger will go to standby mode. That's even better and safer than manual charging. However, if you want, it is still possible finding a way to stop the charging progress manually.

Regards,
Ian
Click to expand...

I worry about that if the chip is damaged or an unknown reason, the charging or discharging current is not stop automatically, the current will generate waste heat which exceeding the heat-dissipating upper limit of the original design of the heat sink, and than...

After all, this is the first version.

I tried to DIY LiFePO4 battery power supply by myself, and I found that there was waste heat generated by an unknown reason. The charge and discharge board I bought from Taobao will consume battery power and generate waste heat when the board is damaged without load.

In order to avoid this danger, the battery power supply should be monitored for the temperature of the battery itself, and when the temperature is too high, the fan is forced to heat removal.
 
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M

Morde

Member
Joined 2014
ofswitched said:
Any kind of battery clips must be spot welding on the battery and soldered to the board so any thin enough piece of metal, which sufficient to insert into the slot on the board, can be used as battery clip.
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Is it really so that we need to spot weld the tabs? It's quite difficult to find batteries with the soldering tabs. Or maybe I haven't looked at the right places...
 
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