Transcription of Current sensing in BLDC motor application - Application note
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Current sensing in BLDC motor application - Application note
IntroductionThe brushless DC motor is very popular in industrial automation, automotive, medical and health care appliances thanks to itshigh reliability and lifespan. While its cost reduces every day, on contrary electronics to drive it keeps more and more important,as well as a precise and fast Current sensing to ensure a multiple feedback, which can be used to determine speed, angle andthe rotation this Application note, some different techniques to sense the Current are met, with a focus on the inline phase Current . Itneeds dedicated Current sensing ICs, which are able to work with common mode largely higher than the power supply, and witha good and fast answer to fast common mode step document handles the Current measurement in BLDC motors for a three-phase topology described in the simplifiedschematic in the Figure 2. Step mode drive . Current sensing in BLDC motor Application AN5423 Application noteAN5423 - Rev 1 - January 2020 - By Nicolas AupetitFor further information contact your local STMicroelectronics sales does it work?
AN5423 - Rev 1 - January 2020 - By Nicolas Aupetit For further information contact your local STMicroelectronics sales office. www.st.com. ... applications with a power supply Vcc lower than 5 V. This topology is described in detail in the AN4076. AN5423 Low-side current sensing in each leg of the current driver AN5423 - Rev 1 page 4/19.
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