- notched box online designer
- convert to dxf online
- some CAD work
- modding the power supply to 35V
Danny showed me the DP30V3A – thus emerged the idea to „briefly“ build a tiny benchtop power supply that is powered directly by a wall outlet.
As I didn’t have access to a lasercutter for a while this project just collected dust.
Now there is even better adjustable power supply successors – the DP30V5A, DP50V2A or even the DP50V5A module.
I opted for the 36V version of the Qianson WX-DC2416 switching power supply as power source for the DP30V3A since it was the smallest 230V -> 36V power supply with enough amperage I could find at the time.
It does require a quick mod though because the DP30V3A can only handle 35V.
As you can see I placed a 47k multi-turn precision potentiometer in place of the R11 resistor (original value 20k).
This R11 resistor is part of a voltage divider that adjusts the output voltage.
Ein Gedanke zu „micro benchtop power supply (DP30V3A)“
I plan to buy this power supply, because price aod amperage.
Can yov tell me what is maximal and minimal voltage which can set with potentiometer 47kohm.
Thank you in advance.