Résumé :
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"Build Your Own Source Three-phase power is ubiquitous, and it’s an important electrical engineering concept to understand. Here, Robert explains three-phase power distribution, why it’s so common and how to use it. He also guides us through building a small, experimental three-phase power source on your own. Topics Discussed How three-phase power distribution worksHow to build a small, experimental three-phase power sourceSingle-phase vs. three-phase powerWye and Delta configurationsHow to use direct digital synthesis (DDS) technologyWhat the the safety precautions to take? Tech Used Analog Devices (ADI) AD9959 DDS ICADI AD9959-based generator cardSTMicroelectronics STM32 MCU controller cardGPX1000.4 automotive amplifier from Crunch Welcome to “The Darker Side.” Since the first electric networks were developed in the late 1880s, three-phase electric power has been the most common electricity delivery method worldwide. I guess that the majority of Circuit Cellar readers are more used to 5V or 3.3V DC voltages, but three-phase is the norm for electric networks, even if your house is supplied with a single phase. For the first time in years, my company was recently tasked to design a product directly connected to a three-phase source. For proprietary reasons, I can’t explain what this design was about, but it gave me the idea for this article. This month, I will explain what a three-phase distribution actually is, how they are so common and how to use them. Moreover, I will also show you how to build a small, experimental three-phase power source for $300 or so." (Extrait de Circuit Cellar n°373)
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