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Understanding Essential Tools and Techniques for
Power Conversion Efficiency Testing
U N D E R S TA N D I N G E S S E N T I A L T O O L S A N D T E C H N I Q U E S F O R P O W E R C O N V E R S I O N E F F I C I E N C Y T E S T I N G
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Understanding Essential Tools and Techniques for Power Conversion Efficiency Testing
Introduction
Speaking the Language of Power Conversion
Wherever electrical power is generated, transmitted, or consumed, it has to go through at least one power Power conversion products are typically made up of the same six building blocks: power factor correction
conversion process. Whether the application involves stepping voltages up or down, converting from AC circuits, rectifiers, filters, switching transistors, transformers, and feedback loops. The power factor correction
to DC or DC to AC, or converting power in some other way, ensuring the efficiency of these processes is circuit shapes the input current to maximize the real power available from the AC line by aligning the voltage
essential. This guide outlines the latest tools and techniques for testing the power conversion efficiency of a and current phase to make power delivery more efficient and minimize loss on the grid. The rectifier converts
wide variety of components, subassemblies, and systems. a sine wave to a pulsating wave. A filter smooths the wave to DC, at which point it passes through a switching
Table of Contents transistor that creates a square or pulse wave. The pulse wave is often passed through a transformer, which
provides filtering and isolation and can shift voltage level. At that point, the signal is filtered again to achieve a
Selecting the Right Power Conversion Device ............................................................................................... 3
flat DC signal. Finally, a feedback loop adjusts the output voltage to align with a reference voltage.
High Resolution, High Accuracy DC Measurements for Component Selection and Characterization ............... 4
Power Factor Correction Rectifier Filter Switch Transformer Feedback
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