Results 21 to 30 of about 1,608,983 (244)
Magnetically-coupled Current Sensor Using An Integrated Coil And A Cmos Split-drain Transistor
An integrated current sensing circuit intended for Smart-Power and embedded applications featuring galvanic isolation is implemented. It is based on magnetic detection using the CMOS compatible Split- Drain transistor (MAGFET) that provides a very ...
Fernando C. Castaldo +1 more
doaj +1 more source
Characterizing Semiconductor Devices for All-Electric Aircraft
Cryogenic propulsion with hydrogen fuel cells replacing fossil fuels is a promising solution to cut carbon emissions in the aviation sector. Hydrogen will also be used for cooling the superconducting machines and power converter circuits.
Abdelrahman Elwakeel +7 more
doaj +1 more source
Broken Bar Fault Detection in IM Operating Under No-Load Condition
This paper presents a novel method for broken rotor bar detection in a squirrel-cage induction motor (IM). The proposed method applies a single-phase AC voltage as a test signal on motor terminals, resulting in a stator backward-rotating magnetic field.
RELJIC, D. +3 more
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Electrical Equivalent Circuit of Multi-Tips Pulsed Corona Discharge Reactor [PDF]
In this work, an electrical model equivalent to the corona discharge reactor has been proposed in a multitips plan configuration, in dry air at atmospheric pressure.
Saber Karim +3 more
doaj +1 more source
In this paper, we present a new switching threshold programmable transimpedance amplifier (TIA) for OLED pixel current measurement system. The TIA is composed of an inverter-based cascode amplifier that achieves DC gain of 87 dB for high linearity.
Jinook Jung, Jintae Kim
doaj +1 more source
Measurement of Coastal Currents
Getting a drift buoy into and over the surf zone in rough weather has always been a problem. A cheap, cold propellant rocket launcher using either compressed air from aqua-lung bottles or liquid carbon dioxide is admirably suited for hurling drift bottles to ranges of over 1,000 feet.
J.M. Zeigler, H.J. Tasha
openaire +2 more sources
Improved Method for Determining Voltage Unbalance Factor Using Induction Motors
This work shows an alternative method to determine the Voltage Unbalance Factor in a power grid by using both the mean value of the line voltages and Current Unbalance Factor in induction motors. Twenty unbalanced voltage points on three induction motors
Luis Guasch-Pesquer +3 more
doaj +1 more source
Alternate current measurement [PDF]
The lack of precision of measurements with alternate currents, as compared with those using direct currents, is mainly due to the relative sensitiveness of the instruments available for such tests. The fact that the turning moment acting on the moving system depends in one case on the square of the current and in the other on the first power of the ...
openaire +3 more sources
PWM-based Flux linkage estimation for permanent magnet synchronous machines
Monitoring of rotor temperature in permanent magnet synchronous machines (PMSM) is of great importance as high temperature could cause partial or even irreversible demagnetisation of the permanent magnets (PMs).
Shuai Xiao, Antonio Griffo
doaj +1 more source
This paper suggests a technique to reduce noise in DC current measurements within an integrated power conversion system, which includes a three-phase inverter and a full-bridge converter both utilizing single shunt resistors as current sensors. Typically,
Ju-An Kim, Yong-Gyu Cho, Hyeon-Gyu Choi
doaj +1 more source

