Motivation
From time to time I want to integrate a 12V Eurorack module in my 15V banana setup. So I needed a 15V to 12V adaptor. Nothing spectacular. Just from the datasheet. This is the bigger brother for up to five modules from the single one.
This adaptor was tested with a load of 1A each rail. It is tested working properly down to an input voltage of 14,5V with an 1A load on each rail. So it should work fine in every 15V system. With a safety margin of 0.5V. Of course it is working with higher input voltages as well.
Specs and features
- Input +/-15V DC (or higher)
- Output +/-12V DC
Implementation
Schematic
15V to 12V x3 multiple adaptor schematic
Description:
Just the standard configuration from the datasheets.
Calibration
- Adjust TR_1 for +12V
- Adjust TR_2 for -12V
Building hints
- For higher currents mount heat sink
- Use Tantalum capacitors for C2 and C5
Special parts
- None
Download
15V to 12V x3 multiple adaptor documentation download15V to 12V x3 multiple adaptor Gerber files download
15V to 12V x3 multiple adaptor populated PCB
