Just What the Doctor Ordered: Brushless-dc Motors  

Oleh:

Sloan, Irvine

Jenis: Article from Bulletin/Magazine - ilmiah internasional
Dalam koleksi: Machine Design (Soft Copy ada dalam http://search.proquest.com/) vol. 81 no. 11 (Jun. 2009), page 56.
Topik: Brushless-dc (BLDC) Motors; dc-Power Source; Windings

Ketersediaan

Perpustakaan Pusat (Semanggi) Nomor Panggil: MM44.59 Non-tandon: 1 (dapat dipinjam: 0) Tandon: tidak ada

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It used to be that brushless-dc (BLDC) motors just weren’t an option for most medical applications. But that situation is changing as the cost of BLDC drive electronics falls. Furthermore, a quest for more-efficient, compact, and reliable medical equipment has put BLDC motors on the prescription list for a variety of applications. By definition, a brushless-dc motor is a synchronous electric motor powered by a dc-power source. While derived from the brushed-dc motor, an electronic commutation circuit takes the place of the standard commutator and brush assembly. In terms of design, though, BLDC and brushed-dc motors are almost direct opposites. The windings of a brushed-dc motor wind around the motor’s rotating shaft or armature, whereas the windings of a BLDC motor are affixed to the motor housing. Likewise, the magnets of a brushed-dc motor attach to the motor housing. But the magnets of a BLDC motor are on the rotating shaft, now called the rotor of the motor.

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