Folsom EC7293: Battery/Solarcell Powered Feedback, 60/120w

[Destroyer OS]

I wont be posting a schematic.

Already posted a photo of in use battery operation. I am waiting on PCB's to test newly revised LED and pvi setup.

 

[hibo4]

Hi,
Seen your prototype and thinking of assembly of amp boards to each side of case with integral heatsinks. Mirror image of amp boards would be advantageous or is it possible to populate either side? Also helpful would be overall dimensions of fully populated boards.

Martin.

 

[pinnocchio]

Whatever happened to this amplifier?

 

[Destroyer OS]

Redesign is nearly done without batteries, but LED powered feedback from PVI cells.

 

[Destroyer OS]

 

[pinnocchio]

What advantages did you notice using solar cell power over well designed regulation? Does solar cell act like battery with lowish impedance?

Thanks
Do

 

[Destroyer OS]

Solar is very stable. Regulators aren't good enough for this particular design. You don't want fluctuation at the exact same time as the chips are tugging on power.

 

[pinnocchio]

So instead of using a whole separate supply for the FE (independent from the OPS supply) you opted for the solar power, correct. Cool idea, but wondering long term if the LED or solar cell don't degrade?

Thanks
Do

 

[Destroyer OS]

If it fails nothing bad happens. The amp just won’t sound good. Also the LED circuity on the bulb doesn’t engage because of our regulator for it. They could last longer than any LED bulb for house use. LEDs are suppose to be good for 25 years but the circuit in the bulb usually isn’t, but in this case it isn’t engaged.

It wasn’t a “choice”, the circuit needs the stability, and no one liked the battery option. The only other alternative is bad performance or ICs that aren’t the same necessarily in outcome.

 

[pinnocchio]

Thanks for the clarification

Do

 

[cOz]

Looking good!

 

[jeanlucgodin]

I would like to order one of these amps for a stereo setup.