How to build a 21st century protection board

I3 is the USB interface.

I've been having some issues reflowing with these Chinese boards so I hand soldered this one. No fun!😡

I'm not sure why people are using the Ebay stuff either. These things work great. The programming might be scaring some off but you just dump it on and go. No real skills required.


The last version was more typical "DIY friendly". I soldered them with my
fat brass tip and fat solder (smd).

I acknowledged that "Vzaichenko tech" was SOTA in the "Badger thread" ,
recommended this fine project to compliment a perfect amp (Badger =100%) !

OS
 
The last version was more typical "DIY friendly". I soldered them with my
fat brass tip and fat solder (smd).

I acknowledged that "Vzaichenko tech" was SOTA in the "Badger thread" ,
recommended this fine project to compliment a perfect amp (Badger =100%) !

OS

You need to add bias connectors to your output boards to make them that much easier to connect. I did it with my sub amp.
 
You need to add bias connectors to your output boards to make them that much easier to connect. I did it with my sub amp.

The "honey badger" already has "TP1/2" posts for the over current hookup.
Thermal could just be another hole in the heatsink .
Everything else is just power supply wiring.

Edit - one builder even ran wires off the badger board to add V/I limiters.

OS
 
I've been using DipTrace to design these boards

The relay board and the latest control board aren't tested yet. They've been updated a bit since the schematics and will likely have a couple bugs to work out. They are a huge change from previous versions. Gerbers will be available after they are debugged.
 
Jeff, kool lites is right - R12 is referenced to +5V, but there is no +5V rail on DC offset sensor / SS relay board. So you need to either bring it there from the main board, or reference to +12V rail with appropriate R12 value increase. R12 = 12K will be good in this case.

Cheers,
Valery
 
Jeff, kool lites is right - R12 is referenced to +5V, but there is no +5V rail on DC offset sensor / SS relay board. So you need to either bring it there from the main board, or reference to +12V rail with appropriate R12 value increase. R12 = 12K will be good in this case.

Cheers,
Valery

I saw that when I posted the schematic and I think I connected it to 12V. I'll see when I get a chance to populate the board. I'm battling with the control board right now. I can't burn the bootloader for some unknown reason.
 
These are still untested. Some passive values will likely change.
 

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