Edouard gives us a preview of the new version of the in-line voltage/current tester board by FriedCircuits. He reports that the board is also compatible with the OLED Backpack (requires separate USB power source.) Via the contact form.
Tag Archives: voltage
USB current and voltage tester designed on the DP5031 standard PCB
Here is TitanMKD’s USB current, and voltage tester designed on the DP5031 standard PCB. The board features 4 standard USB connectors, while voltage and current can be measured via 4mm banana terminals For those interested in a cheap funny board to test USB current consumption/voltage or even check USB D+/D- and ID signal The goal […]
Krohn-Hite DC voltage standard teardown & calibration
Dave reviewed the Krohn-Hite DC Voltage precision power supply he bought. After checking if it was working within specs, he proceeded to open it up and see what it was made of. There were a few surprises inside, like the resistor voltage dividers were in the standard Kelvin topology, instead of the more precise Kelvin-Varley […]
Computer controlled power supply update
The computer controlled power supply being developed in the forum is progressing nicely. We got a big boost when Fenugrec posted a few circuit simulations based on a common commercial power supply typology. The simulated circuit is now available as an Eagle Schematic. We also transcribed the “Dave sink” constant current load from DaveCAD to […]