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Chapter 9: Transmission Lines
Chapter 9: Transmission Lines

... y = 3.3 × 10-6 S/km What is per phase series impedance and shunt admittance of this transmission line? Should it be modeled as a short, medium, or long transmission line? Calculate the ABCD constants of this transmission line. Sketch the phasor diagram of this transmission line when the line is supp ...
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January, 2002

... the CPU (For more about moments when you want to TRAICs, see Slot Tech Maga- take a step back and invite zine, May, 2001). I replaced your magically enlightened the TRIAC and verified that co-workers to repair the the CPU again worked in the game. tester. I checked the technical manual and found tha ...
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... when a force is applied to them. The force moving the electrons is called voltage. When you hear someone mention the voltage of an electric source, they are talking about the amount of push available to move current through a circuit. ...
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ADR291 数据手册DataSheet 下载

... voltage references that use an XFET® reference circuit. The new XFET architecture offers significant performance improvements over traditional band gap and buried Zener-based references. Improvements include one quarter the voltage noise output of band gap references operating at the same current, v ...
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MAX9647/MAX9648 General-Purpose, Low-Voltage, Tiny Pack Comparators EVALUATION KIT AVAILABLE

... one for the rising input voltage and one for the falling input voltage (Figure 1). The difference between the trip points is the hysteresis. When the comparator’s input voltages are equal, the hysteresis effectively causes one comparator input to move quickly past the other, thus taking the input ou ...
MAX9986EVKIT.pdf
MAX9986EVKIT.pdf

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Measuring Power regulated by Zero Crossing SCR

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AD9754 数据手册DataSheet 下载

... The AD9754 is a 14-bit resolution, wideband, second generation member of the TxDAC series of high performance, low power CMOS digital-to-analog-converters (DACs). The TxDAC family, which consists of pin compatible 8-, 10-, 12and 14-bit DACs, is specifically optimized for the transmit signal path of ...
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... first-order systems, the sinusoidal response depends on both the DC gain, K, and the time constant,. Both, K and  are functions of system parameters. The objective of this experiment is to investigate the effect of system parameters on system response to a sinusoidal input. We will experiment with ...
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MAX13330/MAX13331 Automotive DirectDrive Headphone Amplifiers with Output Protection and Diagnostics General Description

... their outputs biased about a nominal DC voltage (typically half the supply) for maximum dynamic range. Large coupling capacitors are needed to block this DC bias from the headphone. Without these capacitors, a significant amount of DC current flows to the headphone, resulting in unnecessary power di ...
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... 1. Life support devices or systems are devices or systems which, (a) are 2. A critical component in any component of a life support, device, or system whose failure to perform can be reasonably expected to intended for surgical implant into the body or (b) support or sustain life, and (c) whose fail ...
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... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
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... same active and reactive power of the arrangement of fig. 5.3 but with reduced losses in the lines. To do this, consider figure 5.4. The voltages between wires at the source terminals can be determined using the common rule for vector differences (figure 5.4 a); the voltages between the correspondin ...
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300V PT IGBT Technology

... and VCE(on) both. It is a recent improvement in technology that enables 300V Power MOS 7  IGBTs to replace 200 to 300V MOSFETs in power supplies. Previously IGBTs mostly replaced MOSFETs with a blocking voltage of 400V and higher because of the lower drift region resistance of lower voltage MOSFETs ...
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Layout Optimization Using Arbitrarily High Degree Posynomial Models

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- Vertex Standard

... Regardless of the above choice, it is of paramount importance that the antenna(s) be mounted as high and in the clear as possible, preferably within line-of-sight to all repeater users. Furthermore, losses in the feedline(s) must be minimized, so the feedline(s) should be high quality, and as short ...
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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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