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Speakers are Important In or Out of the Circuit
Speakers are Important In or Out of the Circuit

... Devices that we call transformers are able to take one form of energy and convert it into another; i.e. they “transform” one type of electrical energy into another…That’s WHY they are called “transformers.” A power transformer converts the AC (alternating current) from the mains socket into the appr ...
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6517B Electrometer/High Resistance Meter

... Ohm’s Law (R=V/I.) While high resistance materials and devices produce very small currents that are difficult to measure accurately, Keithley electrometers and picoammeters are used successfully for such measurements. Even with high quality instrumentation, inherent background currents in the materi ...
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EBP Series Emergency Battery Packs

... - Isolated auxiliary relay with debounce technology provides compatiblity with T5 ballasts - Low-voltage disconnect protects the lamp and battery - Capacitive coupled charging circuit ...
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LMD18245 3A, 55V DMOS Full-Bridge Motor Driver

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Certification of advanced Electrical Characteristics

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... In a series circuit, in which the same current flows through all of the components, the total resistance is equal to the sum of the resistance of each of the resistors. In addition, the sum of individual voltage drops across each resistor is equal to the total voltage applied to the circuit. This is ...
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Universal Diversa Sensors Distributor Training

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Low-current sensing circuit and topology for portable gamma

... This design was also verified using simulations, where all the switches were replaced with MOSFETs and the entire circuit is split into 4 blocks. The first block is a voltage reference [6] and other external conversions required for accurate functionality of the entire circuit, which is followed by ...
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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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