Test Method for Calculating the Energy Efficiency of Single Voltage External Ac-Dc and Ac-Ac Power Supplies

Course Summary

This course specifies a test method for calculating the energy efficiency of single voltage external ac-dc and ac-ac power supplies, herein referred to collectively as “power supplies”. Power supplies are designed to convert line voltage ac into the low voltage output (either ac or dc) typically required by laptop computers, cordless and cellular phones, portable stereos, etc. External power supplies are contained in a separate housing from the product they are powering. These external power supplies are often referred to as “ac adapters”.

Learning Objectives

The purpose of this test procedure is to establish a standardized method that can be used worldwide to measure the efficiency of single voltage external ac-dc and ac-ac power supplies across a full range of load conditions.

Course Author

Chris Calwell, Suzanne Foster, and Travis Reeder, Ecos Consulting Arshad Mansoor, Power Electronics Application Center (EPRI-PEAC).

Review the quiz before studying the course.

Certificate of completion of the course

This course comes with a multiple-choice quiz. You can view the quiz and take the quiz if you are logged in your account. You can take the quiz for this online PDH course as many times until passed. The passing grade is 70% and above. After you pass the quiz simply follow the page, to pay for the course and print your certificate instantly. A copy of the certificate and receipt for this course will always be in your account.

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This online PDH course can also be used as a continuing education course for the following.

Electrical Engineering