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altmann
altmann

... The signal reconditioning procedure generates a brand new signal with optimal shape, duty factor and timing out of a corrupted input signal that may contain several kinds of distortion. The ALTMANN UPCI is directly plugged into the digital input of a DA converter, respectively the clock input of an ...
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No Slide Title

Power system considerations for cell tower applications
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... is size. They need to know the total steady-state requirements of all the equipment on the cell tower that will be powered by the generator set, and then match it with the right alternator to supply the locked rotor amp (LRA) requirements for starting the air conditioning units in the BTS room (for ...
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... then inverted to the ac supply at ωS , the angular frequency of the 50 or 60 Hz standard. Before long, the diode bridge was replaced by the thyristor rectifier which has phase-control. Fig. 1 shows the modern version of the rotor controls based on two IGBT Voltage-source converters (VSCs) connected ...
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AD8465 数据手册DataSheet 下载

... It is also important to adequately bypass the input and output supplies. Place multiple high quality 0.01 μF bypass capacitors as close as possible to each of the VCCI and VCCO supply pins and connect the capacitors to the GND plane with redundant vias. Place at least one capacitor to provide a phys ...
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Power electronics



Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)
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