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This is a description of pedalboard power supplies that I designed an made. I use this power supplies, they are fully working. Pay attention : they are made for 230VAC.
Rackmount Redundant 12V Power Supply
Linear power supply, with digital control
USB power delivery solution for charging, or as a universal power source.
Irrigation System μPiHAT for hobby or scientific use. This repo provides a full design process to create your own μPiHAT PCB from scratch. It allows you to control solenoid valves (although the system can be modified slightly to control various sub systems) from input taken from soil moisture sensors (these can also be substituted with other sensor types).
Another VT100 ATX power supply adapter, with an integrated -23V supply for the NVRAM
Design and code for a bread board power supply
preamplifier & power distributor for instruments
A UPS for raspberry pis.
A power supply for a complete, Raspberry Pi based ADS-B Receiver Setup with independent power rails for the different components.