Results 21 to 30 of about 645,990 (304)
A holistic DC link architecture design method for multiphase Integrated Modular Motor Drives [PDF]
, 2019 This article describes a holistic DC link architecture design method that considers the end-application of the drive and its corresponding constraints e.g. the maximum battery ripple current for a battery-supplied inverter.
De Belie, Frederik +4 more
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A Non-isolated Modified Zeta Converter-fed DC Motor under Load Condition [PDF]
Brazilian Archives of Biology and TechnologyIn this paper, the steady state performance characteristics of a separately excited DC motor fed by a non-isolated positive output DC-DC converter of high voltage gain Zeta topology are presented. The suggested Zeta converter configuration energized by a
Murali Duraisamy, Shruthi Kumar
doaj +1 more source
Comparison of Two DC Motor Speed Observers on Sensorless Speed Control Systems
Jurnal Nasional Teknik Elektro dan Teknologi Informasi, 2022 In a sensorless motor speed control system, the motor speed is not directly measured using a speed sensor, but it is estimated using an observer. The sensorless speed control systems are mostly applied to AC motors, while they have not been widely ...
Bernadeta Wuri Harini, Martanto, Tjendro
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MATEC Web of Conferences, 2018 Direct current motors (DC motor) are used in the small electric devices commonly. DC motor are cheap and easy to install, thus their popularity. Despite the popularity, faults occur which make diagnosis and detection of faults very important.
Wahab Abbas A. +2 more
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A mixed-signal fuzzy controller and its application to soft start of DC motors [PDF]
, 2000 Presents a mixed-signal fuzzy controller chip and its application to control of DC motors. The controller is based on a multiplexed architecture presented by the authors (1998), where building blocks are also described.
Navas González, Rafael +2 more
core +1 more source
Brushless direct-current motor with stationary armature and field [PDF]
, 1970 Electronically commutated dc motor has an active fixed field winding, and active fixed armature winding, and passive rotor. By use of brushless dc motor switching technique, motor provides continuous controllable and reversible torque without use of ...
Studer, P. A.
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Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells
FEBS Letters, EarlyView.Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López +2 more
wiley +1 more source
Nonlinear Engineering, 2019 The separately excited Direct Current (DC) motor is widely used in many industrial sectors. During the operation of the DC motor, the load torque and the voltage of the network can cause a destabilization of the actual speed and actual current. Thus, the
Hamida Mohamed Lamine +3 more
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Vibration model as a system of coupled oscillators in a direct current electric motor [PDF]
E3S Web of Conferences, 2019 This article describes a vibration model connected by individual nodes of a DC motor. The purpose of the article is a mathematical model allowing to predict the work of machines with a depreciation resource and search for ways to increase the information
Filina O. A. +4 more
doaj +1 more source
Variable-frequency inverter controls torque, speed, and braking in ac induction motors [PDF]
, 1974 Dc to ac inverter provides optimum frequency and voltage to ac induction motor, in response to different motor-load and speed requirements. Inverter varies slip frequency of motor in proportion to required torque.
Nola, F. J.
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