I made a software that measures dc power efficiency for various circuits like voltage regulators. It should support most power supplies with a serial port that allow you to set voltage, current and measure voltage and current on their output. You will also need a dc electronic load or a 2/4 quadrant power supply (must have programmable current sink capability) with a serial port that can set sink current values, measure voltage and current on its output. The concept is simple, the power supply measures voltage and current on the input side of the circuit while the dc load measures voltage and current on the output side.
GitHub Page:
https://github.com/Niravk1997/DC-Power-Efficiency-Measurement-SoftwareDownload Link:
https://github.com/Niravk1997/DC-Power-Efficiency-Measurement-Software/releasesMessy User Manual:
https://github.com/Niravk1997/DC-Power-Efficiency-Measurement-Software/blob/main/User%20Manual.pdfThe software sets the input voltage on the power supply and sink current on the dc load. Then measures voltage and current on the input and output side of your circuit. Using these measurements it calculates power efficiency and some other stuff. The power supply must operate in constant voltage mode while the dc load must operate in constant current sink mode.
currently tested power supplies: HP/Agilent/Keysight 66312A, 66332A, 6631B, 6632B, 6633B, 6634B, 6611C, 6612C, 6613C, and 6614C
currently tested dc electronic loads or 2/4 quadrant power supplies: HP/Agilent/Keysight 6631B, 6632B, 6633B, 6634B
Below pictures are taken for a MP1584 dc-dc buck regulator whose output voltage is set to 5V.
If you have any questions or found errors in the software please let me know.