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3.0A, 150kHz, Step-Down Switching Regulator LM2596
3.0A, 150kHz, Step-Down Switching Regulator LM2596

... 3.0A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5.0V,12V, and an adjustable output version. These regulators were designed to minimize the number of external components to simplify the power supply design. Standard series of inductors ...
Class B, PA - Huji cse Moodle 2014/15
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... single frequency. At all other frequencies, the matching becomes progressively worse, and eventually non-existent. For broad-band applications, the match bandwidth must be increased. ...
intelligent control scheme for mitigating voltage sag and
intelligent control scheme for mitigating voltage sag and

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... The regulator is only suitable for the following chargeable 12V or 24V battery types: -Lead storage batteries with liquid electrolytes -Sealed lead storage batteries; AGM, GEL Important!The regulator is not suited for nickel Cadmium, nickel metal hydride, lithium ions or other rechargeable or non-re ...
Enhanced Output Short Circuit Protection
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... resistors R1 and R2 limit the peak charging current and should be rated to withstand maximum bulk voltage. Two resistors are used due to the maximum operating voltage of the half bridge. See the schematic in Figure 2. The signal across zener diode D1 is coupled to a resistor-capacitor filter R4−C2 v ...
performance analysis of modular multilevel dc-dc converter
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... Due to increase in demand of electrical power supply in human life, it is necessary to meet the demand. On the other hand due to exhaust of conventional resources the main focus of power developing industries is opting for renewable energy resources. The most commonly is solar energy. The photo volt ...
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... In an electrical Power systems, a load with a low power factor draws more current than a load with a high power factor for the th same amount of useful power transferred. Linear loads with low power factor (induction motor) can be corrected with a passive network of capacitors or inductors. The hyst ...
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International Electrical Engineering Journal (IEEJ) Vol. 5 (2014) No.12, pp. 1680-1687
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... known for its efficiency, and even the best one (the Mk.III) takes a whopping 18 amps from a 12V battery. Note also in Fig.1 the rather rare accessories required: the special set-to-PSU lead, the battery connector, the Aerial Tuning Inductance No.1 and the aerial isolation capacitor. In practice the ...
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... pulse width enhances performance and may be more suitable for operation at high input line voltages. An added benefit is reverse recovery current in output rectifier D5 is reduced. This ...
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... General Specifications:- True RMS Input/Output Measurements. - Micro Controlled System. - 80v/Sec Dynamic Regulations Speed. - 1% Static Regulation. - Electronic Overload and Over Voltage Protection. - Load Level, Output Voltage, Input Voltage LCD Display. - Programmable Low and High Level Voltage P ...
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... reach the goal of high efficiency, reduced current harmonics and improved EMC. Furthermore, it should be noted that the parallel structures are forming a redundant system which can be used to increase the systems reliability by building a fault tolerant arrangement. All these advantages can simply b ...
BA65-2683 Electrical Facilities for Railways
BA65-2683 Electrical Facilities for Railways



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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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