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P. Cantillon-Murphy, T.C. Neugebauer, C. Brasca, and D.J. Perreault, “An Active Ripple Filtering Technique for Improving Common-Mode Inductor Performance,” IEEE Power Electronics Letters , Vol. 2, No. 2, June 2004, pp. 45-50.
P. Cantillon-Murphy, T.C. Neugebauer, C. Brasca, and D.J. Perreault, “An Active Ripple Filtering Technique for Improving Common-Mode Inductor Performance,” IEEE Power Electronics Letters , Vol. 2, No. 2, June 2004, pp. 45-50.

... The choke should be capable of carrying a dc current of 20 A with a ripple voltage whose amplitude does not exceed 50 mV. It should present a common-mode impedance of greater than 1 to the windshield antenna over the entire AM range. This requires a minimum common-mode inductance of 1 mH, in order t ...
High-efficiency, high step-up DC-DC converters
High-efficiency, high step-up DC-DC converters

... the output rectifier due to the high output voltage. The boost and buck–boost converters are the simplest nonisolation topologies. Unfortunately, the switch sustaining the high output voltage has a high - . Furthermore, the short pulse current with high amplitude that flows through the output rectif ...
1. conversion of ammeter into voltmeter
1. conversion of ammeter into voltmeter

... triangular and square wave shapes. The typical frequency range may be 20 Hz to 20 kHz. The signal generator is provided with frequency control network. The frequency control voltage regulates two current sources. For the generation of a triangular waveshape, an integrator circuit is used as shown. T ...
Ind. Catalog_0730_r1.indd - Electro Rent Corporation
Ind. Catalog_0730_r1.indd - Electro Rent Corporation

LT3825 - Isolated No-Opto Synchronous Flyback Controller with
LT3825 - Isolated No-Opto Synchronous Flyback Controller with

... applications. Short this pin to GND in less demanding applications that don’t require load compensation. RCMP (Pin 14): Pin for optional external load compensation resistor. Use of this pin allows for nominal compensation of parasitic resistances in the feedback sensing path. In less demanding appli ...
PROFESSIONAL MATHEMATICS
PROFESSIONAL MATHEMATICS

Specific symptoms of single-phase inverters faults that are required for an expert system design Sergiu Valentin Popescu, Constantin Ghiţă, Anca-Simona Deaconu, Aurel-Ionuţ Chirilă, Ioan-Dragoş Deaconu
Specific symptoms of single-phase inverters faults that are required for an expert system design Sergiu Valentin Popescu, Constantin Ghiţă, Anca-Simona Deaconu, Aurel-Ionuţ Chirilă, Ioan-Dragoş Deaconu

... equipment’s life time. The presented power inverters are the key component of alternative voltage uninterruptable power supplying systems for vital consumers. The diagnosing operations are performed mostly in an on-line fashion based on a setup controlled by the process computer that receives signal ...
US 6545450 - Santangelo Law Offices
US 6545450 - Santangelo Law Offices

... may be considered fixed (at a given voltage), as the speed is may use up to 50 amperes, and future designs may use as increased, that energy, which may be dissipated in the much as 150 amperes or more. switches, may be dumped into the switch that many more As the speed of the processors increase, th ...
performance of three phase induction motor using modified stator
performance of three phase induction motor using modified stator

... electric power system includes an opposing current in the secondary winding, when the latter is short circuited or closed through external impedance. Relative motion between the primary and secondary structure is produced by electromagnetic forces corresponding to the power transferred across the ai ...
LNK520GN Datasheet - Mouser Electronics
LNK520GN Datasheet - Mouser Electronics

... This configuration is ideal for very low cost charger and adapter applications where output CC tolerance is loose or unspecified. Typical applications include low cost chargers and adapters where direct replacement for a linear transformer is required. In applications with a high voltage DC input vo ...
GE 0106 Basic Engineering II
GE 0106 Basic Engineering II

... south is called a MAGNET. Magnet attracts iron fillings. It is also called as permanent magnet. A current passing though a conductor (or a coil) also can produce magnetic effect and it is called as Electromagnet. A permanent magnet has one north pole and one south pole. The imaginary lines which tra ...
A30 or A130 This is Yellow Phase differential
A30 or A130 This is Yellow Phase differential

... (a) Core to Screen Test For core to screen test, connect HV probe into negative output of test set. Connect HV prove to core under test, and earth to screen of cable. Turn on key switch, then HV switch. HV light should be on. With voltage control knob wound back fully anticlockwise, a micro switch s ...
Electrical Energy Systems (Power Applications of Electricity)
Electrical Energy Systems (Power Applications of Electricity)

and 2 - Faculty of Engineering
and 2 - Faculty of Engineering

... by a magnetic circuit. When an alternating voltage is applied to one of these windings, an induced magnetic field is generated in the core, which then induces a voltage on the second winding. The winding at which the source is applied is called the primary winding, while the other winding is called ...
NCP1230GEVB NCP1230 90 Watt, Universal Input Adapter Power Supply Evaluation Board User's
NCP1230GEVB NCP1230 90 Watt, Universal Input Adapter Power Supply Evaluation Board User's

... mode with a duty cycle greater than 50% requires slope compensation. In this application the power supply will always be operating in the discontinuous mode, so no slope compensation is required. The resistor R21 and capacitor C24 form a low pass filter suppressing the leading edge of the current si ...
Starting arrangements for a prime mover which is not for emergency
Starting arrangements for a prime mover which is not for emergency

... Ducts are to have similar wall thickness corresponding to the equivalent internal cross-section of the duct. Two concentric pipes should be used through tanks containing combustible liquids and in cargo holds containing combustible loads. (NEK 410/IEC 60092.401.40) Cables behind panels or deck-plati ...
c-14-dbme-1st-year
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... network- its applications Star/Delta transformation- Problems. ...
Induction Motor and Self-Excited Induction Generator
Induction Motor and Self-Excited Induction Generator

... Summary ...
Protection of Busbars and Lines
Protection of Busbars and Lines

... currents in both sets of CTs are equal. Consequently, the currents flowing in the relay primary winding 11 and 11 a will be equal and they will induce equal voltages in the secondary windings 12 and 12a. Since these windings are connected in opposition, no current flows in them or in the operating w ...
Regulators for High
Regulators for High

Turkey Point Units 6 & 7 COL Application Part 2 — FSAR
Turkey Point Units 6 & 7 COL Application Part 2 — FSAR

... Part 2 — FSAR energized under normal operation. The 500 kV switchyard is rated for a continuous current of 4000A and a fault duty rating of 50 kiloamperes. The 230 kV section of the plant switchyard is configured in a breaker-and-a-half bus arrangement. The switchyard provides the separate electrica ...
Final Report - Senior Design
Final Report - Senior Design

... portion of the light is produced by radiation of metal halide and mercury vapor in the arc tube. Micro-controller – A micro processor on a single integrated circuit intended to operate as an embedded system. Typically includes a small amount of RAM, PROM, timers, and I/O ports. Microwave - A high-fr ...
Turkey Point Units 6 & 7 COL Application Part 2 — FSAR
Turkey Point Units 6 & 7 COL Application Part 2 — FSAR

... Part 2 — FSAR energized under normal operation. The 500 kV switchyard is rated for a continuous current of 4000A and a fault duty rating of 50 kiloamperes. The 230 kV section of the plant switchyard is configured in a breaker-and-a-half bus arrangement. The switchyard provides the separate electrica ...
national Journal of Engineering Research and Applications (IJERA
national Journal of Engineering Research and Applications (IJERA

A wide input voltage and load output variations fixed
A wide input voltage and load output variations fixed

... energy, which reduces the efficiency, and requires highpower-rating devices. In addition, for high-input-voltage applications, the necessity of high-voltage-rating devices makes the problem even worse. It has been shown that three-level structures can alleviate this problem by reducing the voltage s ...
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Transformer



A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. Commonly, transformers are used to increase or decrease the voltages of alternating current in electric power applications.A varying current in the transformer's primary winding creates a varying magnetic flux in the transformer core and a varying magnetic field impinging on the transformer's secondary winding. This varying magnetic field at the secondary winding induces a varying electromotive force (EMF) or voltage in the secondary winding. Making use of Faraday's Law in conjunction with high magnetic permeability core properties, transformers can thus be designed to efficiently change AC voltages from one voltage level to another within power networks.Since the invention of the first constant potential transformer in 1885, transformers have become essential for the transmission, distribution, and utilization of alternating current electrical energy. A wide range of transformer designs are encountered in electronic and electric power applications. Transformers range in size from RF transformers less than a cubic centimeter in volume to units interconnecting the power grid weighing hundreds of tons.
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