Industry Trends
2021-10-25
Because brushless DC motors lack excitation windings, commutators, brushes, and slip rings, their construction is simpler than that of conventional AC and DC motors. As a result, they operate more reliably and are easier to maintain. Compared with squirrel-cage induction motors, their structural simplicity and operational reliability are roughly equivalent. Since they have no iron losses or copper losses associated with excitation, when the power rating is below 300 W, their efficiency is 10% to 20% higher than that of similarly rated motors driven by current-excited fields. Moreover, compared with induction motors, they exhibit even higher efficiency.
2021-09-13
DC fans are well-known, widely used thermal management devices that can be employed individually, in series, or in parallel to provide forced-air convection cooling. It is precisely because of their versatility and relatively simple operation that DC fans have remained a reliable choice for temperature control in end-use applications over the years.
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