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Microwave Amplifiers
Microwave Amplifiers

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... automatically turned OFF when its current reaches a zero value. This behavior is the same for positive and negative voltage. There are only a few “turn ON” limitations along the zero crossing, when the current is not high enough (lower than the TRIAC's latching current), so the power to the load can ...
D.S. Lymar, T.C. Neugebauer, and D.J. Perreault, “Coupled-Magnetic Filters with Adaptive Inductance Cancellation,” IEEE Transactions on Power Electronics , Vol. 21, No. 6, pp. 1529-1540, Nov. 2006.
D.S. Lymar, T.C. Neugebauer, and D.J. Perreault, “Coupled-Magnetic Filters with Adaptive Inductance Cancellation,” IEEE Transactions on Power Electronics , Vol. 21, No. 6, pp. 1529-1540, Nov. 2006.

... branch) appears to have a negative of the T-network (the inductance. It must be stressed that this does not violate any physical laws since the inductance seen across any two terminals of Fig. 3 is of the T-model is clearly positive. Thus, when made slightly negative, the trimming inductor can be us ...
GM862 Family Hardware User Guide
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... shall be done according to the design rules described in this manual. In this document all the basic functions of a mobile phone will be taken into account; for each one of them a proper hardware solution will be suggested and eventually the wrong solutions and common errors to be avoided will be ev ...
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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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