Power Supply Evaluation

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Updated 25 August 2014

Power Supply Evaluation

Laboratory Test Equipment Specifications

Power supply Agilent E3630A data sheet

Oscilloscope Agilent 3024A data sheet

Function generator Agilent 33220A data sheet

Electronic load BK Precision 8500 data sheet

Infrared thermometer Sixth Sense LT100 data sheet

Using the available test equipment, your test plan should evaluate the following performance characateristics:

Output DC voltage vs. load current ranging from 0 A to maximum specified output current (for at least 10 measured conditions approximately linearly distributed across range).

Using your plot of the output voltage versus load current, determine the the power supply's internal resistance.

Output voltage ripple under three load conditions (0 A, half of the max specified output current, 80% of the maximum specified output current).

Operating power efficiency, η, under four load conditions (10%, 50%, 80%, and 100% of max specified output current), where

and P_L is the power delivered to the load and P_S is the power delivered to the supply.
P3-brand P4400 electricity usage monitors may be checked out from the EECS shop to measure the power delivered to the supply.
P4400 manual
Example test setup diagram

Millennium Engineering
501 Syllabus Rules of the Game Projects Project Reports Lab Notebooks Useful Links Staff Pictures