national unit specification: general information
... This Unit has been designed to initially take a systems approach to electrical motor drive systems via a block diagram approach. Individual parts of the system (e.g. transmission arrangements, electrical protection and starting and braking) are then analysed in greater depth. The operation and perfo ...
... This Unit has been designed to initially take a systems approach to electrical motor drive systems via a block diagram approach. Individual parts of the system (e.g. transmission arrangements, electrical protection and starting and braking) are then analysed in greater depth. The operation and perfo ...
Low power analog or RF amplifier
... 1. A inductance network (Lg, Ls ) is used for are used for input matching. 2. A RLC filter network (Lout, Cout, Rout ) is used for selecting the output frequency. 3. Vg1 is biased at 0.53V; Vg2 is biased at 1.7V;Vdd is biased at 2 V. ...
... 1. A inductance network (Lg, Ls ) is used for are used for input matching. 2. A RLC filter network (Lout, Cout, Rout ) is used for selecting the output frequency. 3. Vg1 is biased at 0.53V; Vg2 is biased at 1.7V;Vdd is biased at 2 V. ...
Overview of motors and motion control
... DC motors typically consist of a rotating armature coil inside of a stationary magnetic field which is generated by either a permanent magnet or a stationary electromagnet connected in series or parallel with the armature coil (the series connection often being referred to as a Universal Motor). The ...
... DC motors typically consist of a rotating armature coil inside of a stationary magnetic field which is generated by either a permanent magnet or a stationary electromagnet connected in series or parallel with the armature coil (the series connection often being referred to as a Universal Motor). The ...
Synthesis of Double-Input DC-DC Converters using
... In order to combine the main source of power with the energy storage unit, either two independent converters or a single double-input converter can be used. The advantages of using a double-input converter are high efficiency, reduced component count, low cost, and control simplicity. In this paper ...
... In order to combine the main source of power with the energy storage unit, either two independent converters or a single double-input converter can be used. The advantages of using a double-input converter are high efficiency, reduced component count, low cost, and control simplicity. In this paper ...
2x1.2W stereo audio power amplifier with dedicated standby pins
... 2. All PSRR data limits are guaranteed by production sampling tests. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon ...
... 2. All PSRR data limits are guaranteed by production sampling tests. Dynamic measurements - 20*log(rms(Vout)/rms(Vripple)). Vripple is the sinusoidal signal superimposed upon ...
Versatile Unified Power Quality Conditioner
... Abstract— This paper presents the study, analysis and practical implementation of a versatile unified power quality conditioner (UPQC), which can be connected in both three-phase three-wire or three-phase four-wire distribution systems for performing the series-parallel power-line conditioning. Thus ...
... Abstract— This paper presents the study, analysis and practical implementation of a versatile unified power quality conditioner (UPQC), which can be connected in both three-phase three-wire or three-phase four-wire distribution systems for performing the series-parallel power-line conditioning. Thus ...
1C.4.1—Harmonic Distortion
... 10 Harmonic Problems—Causes and Solutions Harmonic problems are caused by one or more nonlinear loads such as adjustable speed drives, switching power supplies, electronic ballasts for fluorescent lighting, and arcing devices such as welders. These devices can cause nearby equipment, such as sensiti ...
... 10 Harmonic Problems—Causes and Solutions Harmonic problems are caused by one or more nonlinear loads such as adjustable speed drives, switching power supplies, electronic ballasts for fluorescent lighting, and arcing devices such as welders. These devices can cause nearby equipment, such as sensiti ...
Selection of Capacitance for Compensated Self Excited Induction Generator Using Meta-Heuristic Approach
... range of different parameters as voltage, speed and excitation capacitance, within which self-excitation is possible. In [16] an analysis for the performance of SEIG based on eigenvalues is proposed. The lower and upper limits of the excitation capacitance are identified. However, this approach is a ...
... range of different parameters as voltage, speed and excitation capacitance, within which self-excitation is possible. In [16] an analysis for the performance of SEIG based on eigenvalues is proposed. The lower and upper limits of the excitation capacitance are identified. However, this approach is a ...
EE20 RC_RJIT Conference
... connection of switching power devices has big problems [13], namely, non equal distribution of applied device voltage across series-connected devices that may make the applied voltage of individual devices much higher than blocking voltage of the devices during transient and steady-state switching o ...
... connection of switching power devices has big problems [13], namely, non equal distribution of applied device voltage across series-connected devices that may make the applied voltage of individual devices much higher than blocking voltage of the devices during transient and steady-state switching o ...
filament lamp ~ introduction - RS Components International
... The catalogue figures are for AC operation under ideal operating conditions. In the case of most subminiature/miniature lamps below 0.2A (200mA) current consumption, it is important to remember that the DC life will be considerably less than the AC life. This is due the effects of uni-directional cu ...
... The catalogue figures are for AC operation under ideal operating conditions. In the case of most subminiature/miniature lamps below 0.2A (200mA) current consumption, it is important to remember that the DC life will be considerably less than the AC life. This is due the effects of uni-directional cu ...
MC34653, 1.0 A Negative Voltage Hot Swap Controller
... voltage required for the internal circuitry. The Power MOSFET will stay off until the start of the charging process. After the Power-ON Reset (POR) and once the Undervoltage Lockout (UVLO) threshold is cleared, the 34653 checks for external components on two pins — ILIM and ICHG —to set the levels o ...
... voltage required for the internal circuitry. The Power MOSFET will stay off until the start of the charging process. After the Power-ON Reset (POR) and once the Undervoltage Lockout (UVLO) threshold is cleared, the 34653 checks for external components on two pins — ILIM and ICHG —to set the levels o ...
FILAMENT LAMP ~ INTRODUCTION
... The catalogue figures are for AC operation under ideal operating conditions. In the case of most subminiature/miniature lamps below 0.2A (200mA) current consumption, it is important to remember that the DC life will be considerably less than the AC life. This is due the effects of uni-directional cu ...
... The catalogue figures are for AC operation under ideal operating conditions. In the case of most subminiature/miniature lamps below 0.2A (200mA) current consumption, it is important to remember that the DC life will be considerably less than the AC life. This is due the effects of uni-directional cu ...
Modeling and Control of Three-Port DC/DC Converter Interface for
... bidirectional port to interface battery. To sum up, the multiport topologies can be classified into two categories: nonisolated topologies [1]–[9] and isolated topologies [10]–[23]. Nonisolated multiport converters usually take the form of buck, boost, buck–boost, etc., featuring compact design and ...
... bidirectional port to interface battery. To sum up, the multiport topologies can be classified into two categories: nonisolated topologies [1]–[9] and isolated topologies [10]–[23]. Nonisolated multiport converters usually take the form of buck, boost, buck–boost, etc., featuring compact design and ...
Comparative analysis of lightning overvoltages in distribution lines
... a measure of influences are induced overvoltages of high amplitude and frequency during a transient state in the circuit composed of a conductor and a thunderstorm cloud caused by electromagnetic field (generated by a lightning current). The other case is related first of all to electromagnetic fiel ...
... a measure of influences are induced overvoltages of high amplitude and frequency during a transient state in the circuit composed of a conductor and a thunderstorm cloud caused by electromagnetic field (generated by a lightning current). The other case is related first of all to electromagnetic fiel ...
CAST LED Perimeter Lighting
... “Never has so little light done so much work. We found this to be a simple, clean, efficient, energy-effective solution which could be s t - l i gused h t ionnnearly g . c every o m property. It leverages the best benefits of LED – low voltage operation, optical efficiency, small size and long life ...
... “Never has so little light done so much work. We found this to be a simple, clean, efficient, energy-effective solution which could be s t - l i gused h t ionnnearly g . c every o m property. It leverages the best benefits of LED – low voltage operation, optical efficiency, small size and long life ...
Autotransformer 120/240V - 32A and 120/240 - 100A
... The Autotransformer: for step up, step down and split phase balancing An autotransformer can be used for step up, step down and split phase output balancing purposes. While the step up and step down functions are fairly straightforward, split phase output balancing may require some more attention. C ...
... The Autotransformer: for step up, step down and split phase balancing An autotransformer can be used for step up, step down and split phase output balancing purposes. While the step up and step down functions are fairly straightforward, split phase output balancing may require some more attention. C ...
Effects of the circulating sheath currents in the magnetic field
... field generated by underground single core power cables is studied. When dealing with underground power cables, sheath circulating currents can be induced. These currents produce power losses in the sheaths and decrease the ampacity (capacity of carrying current) of the cables. The circulating sheat ...
... field generated by underground single core power cables is studied. When dealing with underground power cables, sheath circulating currents can be induced. These currents produce power losses in the sheaths and decrease the ampacity (capacity of carrying current) of the cables. The circulating sheat ...
750 MHz Power Doubler and Push-Pull CATV Hybird
... new IC. The most critical issues for this package were heat dissipation, auto insertion and low cost. A plastic package was not feasible due to the heat dissipation of the IC and a ceramic type package was too expensive. A simple leadframe with potting material placed over the active device was the ...
... new IC. The most critical issues for this package were heat dissipation, auto insertion and low cost. A plastic package was not feasible due to the heat dissipation of the IC and a ceramic type package was too expensive. A simple leadframe with potting material placed over the active device was the ...
Slow Coherency Based Cutset Determination Algorithm for Large
... is defined as the number of branches connected to that node. It could be a positive number or zero. In the graph representation of a power system, only connections and the power flows through those connections are required. All the other information, such as generators, loads, transformers, FACTS de ...
... is defined as the number of branches connected to that node. It could be a positive number or zero. In the graph representation of a power system, only connections and the power flows through those connections are required. All the other information, such as generators, loads, transformers, FACTS de ...
03_4_FPLD_connections
... domain issue by allowing for a change in domain − A greater diversity of routing paths from a net source to a destination ...
... domain issue by allowing for a change in domain − A greater diversity of routing paths from a net source to a destination ...
Electrification
Electrification is the process of powering by electricity and is usually associated with changing over from another power source. The broad meaning of the term, such as in the history of technology and economic history, usually applies to a region or national economy. Broadly speaking, electrification was the build out of the electrical generating and distribution systems which occurred in Britain, the United States, and other countries from the mid-1880s until around 1950 and is in progress in rural areas in some developing countries. This included the change over from line shaft and belt drive using steam engines and water power to electric motors.The electrification of particular sectors of the economy is called by terms such as factory electrification, household electrification, rural electrification or railway electrification. It may also apply to changing industrial processes such as smelting, melting, separating or refining from coal or coke heating or chemical processes to some type of electric process such as electric arc furnace, electric induction or resistance heating or electrolysis or electrolytic separating.Electrification was called ""the greatest engineering achievement of the 20th Century"" by the National Academy of Engineering.