I need help for my new amp. It is a TDA8920 CLASS D Audio Power Amplifier AMP Kit 100W X2 se pic.
Im most confused about the powersuply as im using 12v batterys to power it and I don't really know how to connect the power to the amp.... It says ac2x20v(se attachment).... How do i connect it when im using 12 v batterys????
sorry for being a newb
Im most confused about the powersuply as im using 12v batterys to power it and I don't really know how to connect the power to the amp.... It says ac2x20v(se attachment).... How do i connect it when im using 12 v batterys????
sorry for being a newb
Attachments
This amplifier was intended to use AC.
It should be possible to use DC, and even connect it to the AC inlet, but it would be better to have a view of the schematic before giving advice. If you have one, post a scan or picture of it.
It will not achieve the full output with 2 * 12V.
w
It should be possible to use DC, and even connect it to the AC inlet, but it would be better to have a view of the schematic before giving advice. If you have one, post a scan or picture of it.
It will not achieve the full output with 2 * 12V.
w
Ok to get it straight:
i can just mount the two batteries directly on the soldering on the backside of the capacitators: one battery neg-pos and the other neg-pos one on etch capacitator?
Should i then unmount the bridge rectifier? or should i leave it.
bu the way thanks for the help, i really need it
i can just mount the two batteries directly on the soldering on the backside of the capacitators: one battery neg-pos and the other neg-pos one on etch capacitator?
Should i then unmount the bridge rectifier? or should i leave it.
bu the way thanks for the help, i really need it
Ok to get it straight:
i can just mount the two batteries directly on the soldering on the backside of the capacitators: one battery neg-pos and the other neg-pos one on each capacitor?
Should i then unmount the bridge rectifier? or should i leave it.
bu the way thanks for the help, i really need it
Hi,
What you state is essentially correct. You can leave the bridge in place.
Going directly to the caps avoids the ~ 1.5V drop added by the bridge.
Even so, given spec is +/- 12.5V it might not work, but it likely will.
rgds, sreten.
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