BX26501512
... and two line currents (voltage model) One desirable feature of direct torque control, or any control method based on stator flux control is to consider usually the stator flux as an estimated quantity using terminal measurements [6]. At first, simple flux estimator is obtained from equation (1) in i ...
... and two line currents (voltage model) One desirable feature of direct torque control, or any control method based on stator flux control is to consider usually the stator flux as an estimated quantity using terminal measurements [6]. At first, simple flux estimator is obtained from equation (1) in i ...
EE 1281721
... drives are being used widely. One of the most popular approaches is a generalized harmonic injection [1]. In high speed applications like traction, the primary concern of drives is to obtain a low frequency and ripple free torque and even flux control. For such applications, a great deal of study ha ...
... drives are being used widely. One of the most popular approaches is a generalized harmonic injection [1]. In high speed applications like traction, the primary concern of drives is to obtain a low frequency and ripple free torque and even flux control. For such applications, a great deal of study ha ...
Chapter 4
... respectively. Assume this winding to be carrying current ia. a) Write an expression for the space-fundamental mmf produced by the two coils whose sides are in the slots at θa=112.50 and -67.50. b) Write an expression for the space-fundamental mmf produced by the two coils whose sides are in the slot ...
... respectively. Assume this winding to be carrying current ia. a) Write an expression for the space-fundamental mmf produced by the two coils whose sides are in the slots at θa=112.50 and -67.50. b) Write an expression for the space-fundamental mmf produced by the two coils whose sides are in the slot ...
AN3105
... The circuit is composed of two stages; a front-end PFC using the L6562AT and an LLC resonant converter based on the L6599AT. The peculiarities of this design are; very high efficiency, extended European input mains range (177-277 VAC) operation, and long term reliability. Because reliability (MTBF - ...
... The circuit is composed of two stages; a front-end PFC using the L6562AT and an LLC resonant converter based on the L6599AT. The peculiarities of this design are; very high efficiency, extended European input mains range (177-277 VAC) operation, and long term reliability. Because reliability (MTBF - ...
Document
... The dc power supply converts the standard 220 V,50 Hz into a constant dc voltage They consist of three parts : Rectifier, Filter, and Regulator The dc voltage produced by a power supply is used to power all types of electronic circuits, such as television receivers, stereo systems, ...
... The dc power supply converts the standard 220 V,50 Hz into a constant dc voltage They consist of three parts : Rectifier, Filter, and Regulator The dc voltage produced by a power supply is used to power all types of electronic circuits, such as television receivers, stereo systems, ...
doctor - Shodhganga
... 1975 S.N.Talukdar (1) has suggested an algorithm for converting saturation magnetic characteristics expressed in R.M.S.to instantaneous values. In 1980 S.Prusty and M.V.S.Rao(21.22.23) and again in the year 1982 S.N.Bhadra(25) have given various important direct methods to predict and predetermine m ...
... 1975 S.N.Talukdar (1) has suggested an algorithm for converting saturation magnetic characteristics expressed in R.M.S.to instantaneous values. In 1980 S.Prusty and M.V.S.Rao(21.22.23) and again in the year 1982 S.N.Bhadra(25) have given various important direct methods to predict and predetermine m ...
Coto Technology - MEMS-Based Magnetic Reed Switch Technology
... at Bell Labs, who were looking for an improvement to the clunky electromechanical relays then used in telephone exchanges.[1] However, in those 70 years its design has scarcely changed, at least until now. Traditional reed switches still consist of two springy ferrous metal blades sealed in a glass ...
... at Bell Labs, who were looking for an improvement to the clunky electromechanical relays then used in telephone exchanges.[1] However, in those 70 years its design has scarcely changed, at least until now. Traditional reed switches still consist of two springy ferrous metal blades sealed in a glass ...
Practice Work #1
... the amount of current going through it, but that this change is fairly small over a wide range of currents. This is why many textbooks simply say the voltage drop across a conducting, semiconductor diode remains constant at 0.7 volts for silicon and 0.3 volts for germanium. However, some circuits in ...
... the amount of current going through it, but that this change is fairly small over a wide range of currents. This is why many textbooks simply say the voltage drop across a conducting, semiconductor diode remains constant at 0.7 volts for silicon and 0.3 volts for germanium. However, some circuits in ...
Sebuah Kajian Pustaka:
... Since a few years ago the wind power generation has been commercialized because of high fuel efficiency and low air pollution. The generator technology used for variable-speed constant-frequency (VSCF) generating has gone a long way. Nowadays, the most popular motors used for wind power system are: ...
... Since a few years ago the wind power generation has been commercialized because of high fuel efficiency and low air pollution. The generator technology used for variable-speed constant-frequency (VSCF) generating has gone a long way. Nowadays, the most popular motors used for wind power system are: ...
Gordon R
... productivity, and energy efficiency. However, until recently, the provision of continuously variable speed has been considered too expensive for all but special applications for which constant speed was not acceptable. Examples of such drives are elevators, paper and steel mill drives, machine tools ...
... productivity, and energy efficiency. However, until recently, the provision of continuously variable speed has been considered too expensive for all but special applications for which constant speed was not acceptable. Examples of such drives are elevators, paper and steel mill drives, machine tools ...
The Tracker Solenoid Conductor
... higher field MRI magnets have magnet conductors with df < 50 microns for magnet stability. • A magnet with conductor with a smaller filament diameter has lower AC losses. This is important for magnet charging and discharging while on a cooler. • A conductor with a smaller filament diameter is more s ...
... higher field MRI magnets have magnet conductors with df < 50 microns for magnet stability. • A magnet with conductor with a smaller filament diameter has lower AC losses. This is important for magnet charging and discharging while on a cooler. • A conductor with a smaller filament diameter is more s ...
AP3154A
... The AP3154A is designed for white LED applications. An internal comparator circuit compares the voltage at each constant current sink input against a reference voltage. To ensure maximum power efficiency, the most appropriate switching mode (x1, x1.5, x2) is automatically selected. In applications, ...
... The AP3154A is designed for white LED applications. An internal comparator circuit compares the voltage at each constant current sink input against a reference voltage. To ensure maximum power efficiency, the most appropriate switching mode (x1, x1.5, x2) is automatically selected. In applications, ...
Fitting instructions for digital ignition ZDG3 for YAMAHA XS650
... - light-barrier printed circuit board - light disk , driver and the cam shaft - adjustment shaft connector - the ignition box and replaces the original breaker points plate and centrifugal governor. Function: per revolution of the crankshaft starting from TDC, the momentary peripheral speed is deter ...
... - light-barrier printed circuit board - light disk , driver and the cam shaft - adjustment shaft connector - the ignition box and replaces the original breaker points plate and centrifugal governor. Function: per revolution of the crankshaft starting from TDC, the momentary peripheral speed is deter ...
AC_Magnets_1
... Coils for up to c 100 Hz. Coil designed to avoid excessive eddy currents. Solutions: a) Small cross section copper per turn; this give large number of turns - high alternating voltage unless multiple conductors are connected in parallel; they must then be ‘transposed’: ...
... Coils for up to c 100 Hz. Coil designed to avoid excessive eddy currents. Solutions: a) Small cross section copper per turn; this give large number of turns - high alternating voltage unless multiple conductors are connected in parallel; they must then be ‘transposed’: ...
Coilgun
A coilgun (or Gauss rifle, in reference to Carl Friedrich Gauss, who formulated mathematical descriptions of the magnetic effect used by magnetic accelerators) is a type of projectile accelerator consisting of one or more coils used as electromagnets in the configuration of a linear motor that accelerate a ferromagnetic or conducting projectile to high velocity. In almost all coilgun configurations, the coils and the gun barrel are arranged on a common axis.Coilguns generally consist of one or more coils arranged along a barrel, so the path of the accelerating projectile lies along the central axis of the coils. The coils are switched on and off in a precisely timed sequence, causing the projectile to be accelerated quickly along the barrel via magnetic forces. Coilguns are distinct from railguns, as the direction of acceleration in a railgun is at right angles to the central axis of the current loop formed by the conducting rails. In addition, railguns usually require the use of sliding contacts to pass a large current through the projectile or sabot but coilguns do not necessarily require sliding contacts. Whilst some simple coilgun concepts can use ferromagnetic projectiles or even permanent magnet projectiles, most designs for high velocities actually incorporate a coupled coil as part of the projectile.