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Amateur Radio Technician Class Element 2 Course
Amateur Radio Technician Class Element 2 Course

PH3134-30S Radar Pulsed Power Transistor M/A-COM Products
PH3134-30S Radar Pulsed Power Transistor M/A-COM Products

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CLWG Linear Potentiometer
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... Measurement Specialties, Inc., a TE Connectivity company. Measurement Specialties, TE Connectivity, TE Connectivity (logo) and EVERY CONNECTION COUNTS are trademarks. All other logos, products and/or company names referred to herein might be trademarks of their respective owners. The information giv ...
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... ●Consideration on permissible dissipation and heat generation As this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including lower ...
User`s Guide Mini Multimeter with Non
User`s Guide Mini Multimeter with Non

... DO NOT measure voltage if the voltage on the "COM" input jack exceeds 600V above earth ground. NEVER connect the meter leads across a voltage source while the function switch is in the current, resistance, or diode mode. Doing so can damage the meter. ALWAYS discharge filter capacitors in power supp ...
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... and illuminates the indicator light (6). The electrostatic deflection selector switch (8) controls which pairs of plates are activated (X, Y, or both—”D”) and which voltage is indicates on the electrostatic deflection LED display (23). The voltages are adjusted using the two ten-turn potentiometers ...
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TPS70402 数据资料 dataSheet 下载

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... Tiles connected by thermal resistance and capacitance Heat sources modeled as time-variant current sources Transient temperature can be obtained by directly solving a timevariant linear equation ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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