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On the Cause and Control of Residual Voltage Generated by
On the Cause and Control of Residual Voltage Generated by

... commercial NPN and PNP bipolar transistors that were used in the circuit. The drift in voltage due to charge build-up by the DC bias was slower than the rate of stimulation. A switch ...
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... As a rule, EPCOS is either unfamiliar with individual customer applications or less familiar with them than the customers themselves. For these reasons, it is always ultimately incumbent on the customer to check and decide whether an EPCOS product with the properties described in the product specifi ...
GOLDMUND MIMESIS 18.4 POWER AMPLIFIER
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Triple II Demand Instruments
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... input studs. These provide an added measure of protection against heavy switching transients occasionally experienced in the field. The MOV's are designed to clamp applied power voltages above 170V ac RMS (270 V ac RMS for 230V instruments). To avoid damaging the MOV protectors, maintain continuousl ...
Oh No! I Have to Design a PA
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... FETs – the requirements on the FET depends on how it is used. For bias circuit, FET above Emitter is okay. For higher frequency/power switching, the FET must be under the HBT. Diodes (can be BE, BC, or Schottky) are also used for different purposes and should be scalable. The use is from bias circui ...
A TORQUE TRACKING CONTROL ALGORITHM FOR DOUBLY
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... A doubly-fed induction generator is an electrical asynchronous three-phase machine with open rotor windings which can be fed by external voltages. The typical connection scheme of this generator is reported in Fig. 1. The stator windings are directly connected to the line grid, while the rotor windi ...
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... an output high-voltage MOSFET (M1), programmable current-sense resistors (R1 to R5), an error amplifier and a reference voltage (VREF). The error amplifier, designed with high DC gain, compares the current signal (VCS) on the current-sense resistors and the VREF to generate an amplified error signal ...
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... input signal through high-frequency switching of the output stage. This allows the TPA032D04 to be configured as a bridge-tied load (BTL) amplifier capable of delivering up to 10 W of continuous average power into a 4-Ω load at 0.5% THD+N from a 12-V power supply in the high-fidelity audio frequency ...
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TPS53311 数据资料 dataSheet 下载

... In both DE and HEF mode, the switching frequency is reduced in discontinuous conduction mode (DCM). When the load current is 0 A, the minimum switching frequency is reached. The difference between VVBST and VSW must be maintained at a value higher than 2.4 V. ...
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passive techniques for reducing input current

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... The LCM100 also offers the option of a set-point shift depending on the outside temperature (control by atmospheric condition). A digital 24V input can be used to switch between 2 flexible set-points. The LCM100 also contains the LSB interface and the voltage supply for the following LSB module. ...
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... The TDA7110F is a single chip ASK/FSK transmitter for operation in the frequency band 433 ... 435 MHz. The IC offers a high level of integration and needs only a few external components. The device contains a fully integrated PLL synthesizer and a high efficiency power amplifier to drive a loop ante ...
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ReactiVar - Schneider Electric
ReactiVar - Schneider Electric

... BT6000) Systems and filtering system (A/BT7000) are ideally suited for use on electrical systems where connected equipment is extremely sensitive to variations in the supply voltage. The problem: Capacitor systems featuring electromechanical contactors generate Voltage transients on the electrical n ...
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ZHT431 Description Pin Assignments Features Applications Typical

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... materials goes to zero. Below this temperature, such materials are called superconductors. Since these materials have zero resistivity below the critical temperature, they offer no resistance to electric current. Once a current is established in a superconducting material below its critical temperat ...
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... MAX5986C operates at a fixed 430kHz switching frequency. The DC-DC converter operates at a fixed switching frequency, with an efficiency-boosting frequency foldback that reduces the switching frequency by half at light loads. The devices feature an input undervoltage-lockout (UVLO) with wide hystere ...
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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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