Courses

This course provides a thorough introduction to the LinkZero™-AX product family. Device shutdown and wake-up functionality are covered in detail, along with several implementation ideas for various applications. Key waveforms and proper testing procedures are discussed. This course also provides several tips to help avoid problems in your LinkZero-AX design. Take this course to learn more about achieving 0-watt standby in consumer appliances.

Please read our Safety Statement before starting this course.

This course describes the complete procedure for properly bringing up your flyback supply for the first time. This test procedure will help you safely start-up your power supply without damaging components (or yourself), and will help you thoroughly evaluate your new design for basic functionality. Several often-overlooked performance tests will reveal hidden defects in your design that can lead to problems during later testing. Take this course to learn the correct way to bring up and test your power supply.

Please read our Safety Statement before starting this course.

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Course Notes: Bringing Up a Flyback Supply for the First Time	1.03 MB

This course describes the steps necessary for troubleshooting and repairing a power supply that is producing unacceptable levels of audible noise. Possible causes are discussed and solutions are recommended. Take this course if your power supply is producing loud audible noise when tested in the final enclosure.

Please read our Safety Statement before starting this course.

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Course Notes - Fixing a Flyback Supply that has Audible Noise	659.64 KB

This course describes the steps required for troubleshooting and repairing a power supply that is overheating during operation. The possible causes for overheating in standard power supply components are discussed, and recommended solutions are provided. Take this course if you suspect any components in your design are running too hot.

Please read our Safety Statement before starting this course.

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Course Notes - Fixing a Flyback Supply that has Overheating Components	1.47 MB

This course provides a detailed procedure for testing your power supply compliance to various worldwide energy efficiency standards. It defines all of the equipment needed to check compliance, explains how to configure that equipment, describes how to use PI’s Efficiency Compliance Calculator to find the specific targets for your supply, and provides tips to help you avoid inaccurate measurements. Take this course and follow the procedure as a self-check before sending your design out for official testing.

Please read our Safety Statement before starting this course.

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Course Notes - Testing Compliance to Energy Efficiency Standards	1002.08 KB

This course describes the steps necessary for troubleshooting and repairing a power supply that delivers no output voltage when the supply is powered up. Several possible causes for no output voltage are discussed, tests are conducted to isolate the source of the problem, and recommended solutions are provided. Take this course if you see less than 0.1 V across your main output terminals when measured with a digital multimeter.

Please read our Safety Statement before starting this course.

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Course Notes - Fixing a Flyback Supply with No Output Voltage	1.2 MB

This course teaches two methods for measuring power supply efficiency and compares the accuracy of both techniques. Several tips are given to help you achieve the most accurate and reproducible readings possible. Take this course to learn to make quick efficiency measurements of your prototype on the bench.

Please read our Safety Statement before starting this course.

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Course Notes - Techniques for Measuring Efficiency	209.79 KB

This course teaches the proper method for measuring MOSFET drain voltage and current in a power supply using a PI device. Setup procedures for various types of current probes are discussed, along with several tricks to minimize noise pickup and ensure highly accurate measurements. Take this course to learn how to perform one of the most common and helpful measurements when evaluating or troubleshooting a power supply.

Please read our Safety Statement before starting this course.

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Course Notes - Techniques for Measuring Drain Voltage and Current	815.47 KB

This course describes the steps to troubleshooting and repairing a power supply that starts-up with no load and light loads, but enters auto-restart when full output load is applied. The possible causes for not delivering full power are discussed, tests are conducted to isolate the source of the problem, and recommended solutions are provided. Take this course if your output voltage collapses or becomes unstable when you apply full load.

Please read our Safety Statement before starting this course.

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Course Notes - Fixing a Flyback Supply That Does Not Deliver Full Power	521.57 KB

This course describes the steps to troubleshooting and repairing a power supply does not start up or reach regulation, even with no load applied. The possible causes for not reaching regulation are discussed, tests are conducted to isolate the source of the problem, and recommended solutions are provided. Take this course if your output does not reach regulation or is unstable, even with no loading on the output.

Please read our Safety Statement before starting this course.

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Course Notes - Fixing a Flyback Supply Where the Output Fails to Reach Regulation	850.99 KB