Results 91 to 100 of about 22,232 (277)

Period-1 Motions and Bifurcations of a 3D Brushless DC Motor System with Voltage Disturbance

open access: yesApplied Sciences
In this paper, the nonlinear dynamic system of a brushless DC motor with voltage disturbance is studied analytically via a generalized harmonic balance method.
Bin Chen   +3 more
doaj   +1 more source

A Study of the Degradation of Electronic Speed Controllers for Brushless DC Motors [PDF]

open access: yes
Brushless DC motors are frequently used in electric aircraft and other direct drive applications. As these motors are notactually direct current machines but synchronous alternating current machines; they are electronically commutated by a power inverter.
Gorospe, George E., Jr.   +4 more
core   +1 more source

Motor drivers for dc brushless motors [PDF]

open access: yes
Nondestructive tests of motor drivers for delta wound dc brushless ...
Nafus, D., Ward, G. L.
core   +1 more source

An Efficient Position Tracking Smoothing Algorithm for Sensorless Operation of Brushless DC Motor Drives

open access: yesModelling and Simulation in Engineering, 2018
This paper presents a new position sensorless scheme in which a smoothing filter algorithm is proposed to improve the results obtained through Extended Kalman Filter (EKF) algorithm in tracking the rotor position for sensorless control of brushless DC ...
Surya Susan Alex, Asha Elizabeth Daniel
doaj   +1 more source

Hybrid circuit modules for motor commutation and control [PDF]

open access: yes
Thick film hybrid techniques are used to develop circuitry for a brushless dc motor commutator. The power commutator contains the driving circuit and an amplifier that controls the armature current. A position decoder contains digital integrated circuits
Dekramer, C.
core   +1 more source

Quality of life satisfaction among converted Kelantan Chinese Muslims [PDF]

open access: yes, 2019
This article investigates the quality of life of the Kelantan Chinese Muslim community before and after conversion to Islam, focusing on their level of satisfaction in term of economic aspect.
Ab. Razak D.   +23 more
core   +1 more source

Brushless DC Motor without Stator Slots

open access: yesIEEJ Transactions on Industry Applications, 1999
The authors propose the new brushless DC motor without stator slots as a servo motor. The conventional motor has a lots of stator slots, and the stator coils are placed in the slots. In the new motor, the stator has no slots. Accordingly, the stator coils are fixed along the inside of the stator cores, and the coils are molded by a thermosetting resin.
Yoshinobu Nakamura   +2 more
openaire   +2 more sources

Hall effect encoding of brushless dc motors [PDF]

open access: yes, 1970
Encoding mechanism integral to the motor and using the permanent magnets embedded in the rotor eliminates the need for external devices to encode information relating the position and velocity of the rotating ...
Berard, C. A.   +3 more
core   +1 more source

Semi-Analytical Nonlinear Solutions and Stabilities in a Brushless Electric Motor System

open access: yesApplied Sciences
Brushless motors are characterized by extreme power density, thermal management and steady dynamic performance which are commonly utilized in aerospace, high-end robotics and precision medical equipment.
Xinya Wang   +5 more
doaj   +1 more source

DC Home Appliances for DC Distribution System [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2017
This paper strengthens the idea of DC distribution system for DC microgrid consisting of a building of 50 apartments. Since the war of currents AC system has been dominant because of the paucity of research in the protection of the DC system.
MUHAMMAD KAMRAN   +2 more
doaj  

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