Search results
Results from the WOW.Com Content Network
Electromagnetic rotation experiment of Faraday, ca. 1821 [2] Working principle of a homopolar motor: due to movement of negative charges from center towards rim of the disk, a Lorentz force F L is created which brings the entire disk into rotation. The homopolar motor was the first electrical motor to be built.
A stepper motor, also known as step motor or stepping motor, [1] is a brushless DC electric motor that rotates in a series of small and discrete angular steps. [2] Stepper motors can be set to any given step position without needing a position sensor for feedback. The step position can be rapidly increased or decreased to create continuous ...
Step down chopper Step up chopper Range of output voltage: 0 to V volts: V to +∞ volts Position of chopper switch: In series with load: In parallel with load Expression for output voltage: VL dc = D × V volts: V o = V/(1 – D) volts External inductance: Not required: Required for boosting the output voltage Use: For motoring operation, for ...
A news anchor for NBC News in Washington, D.C. is stepping away from the desk after a recent segment prompted concern from audiences. NBC4 News issued a statement on-air and on its website on ...
BUFFALO, N.Y. (AP) — JJ Peterka scored the lone shootout goal, and the Buffalo Sabres beat the Calgary Flames 3-2 on Saturday. Tage Thompson and Zach Benson scored first-period goals, and the ...
Lavet-type stepping motor of a quartz clock. A black rotor sprocket provides the mechanical output. The Lavet-type stepping motor has widespread use as a drive in electro-mechanical clocks [1] and is a special kind of single-phase stepping motor. Both analog and stepped-movement quartz clocks use the Lavet-type stepping motor (see Quartz clock).
The two kindergarten students who were wounded in a school shooting in the Northern California community of Palermo remain in critical condition after a successful surgery on Friday, the Butte ...
It covers all the basics, and each tutorial takes only a few minutes, so you can become a proficient Wikipedian in no time! Get started Policies and Guidelines The wiki markup source editor shows the underlying page source code.