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Step-Down Converter with Cable Voltage Drop
Step-Down Converter with Cable Voltage Drop

Free-Energy Devices Part 1
Free-Energy Devices Part 1

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... 1. Low input resistance. 2. Gv is positive and can be very large, though critically dependent on Rsig. 3. From (13), if Rsig  RE and RL  RC , then Gi   . 4. Potentially large output resistance (dependent on RC). One very important use of the CB amplifier is as a unity-gain current amplifier, whi ...
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... electrons flow. Throughout networking there are references to ground loop circuit, circuit versus packet switching, and virtual circuits, in addition to all the real circuits formed by networking media and networking devices. One of the fundamental electrical circuits is the series circuit. Most net ...
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... frequency harmonics that flow through the shunt capacitor branch is not enough [15]. As a result high frequency harmonic currents flow in to power network, Which in turn compensated by larger inductor. If the reactance of capacitor is too small it will provide low impedance path for harmonics but it ...
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... corresponds to the inverse of the harmonics remaining from the SHE pulse pattern, calculated as described in the previous section from the difference between the NPC pulsed voltage pattern and its sinusoidal voltage reference. This calculation provides a fast and straightforward distortion estimatio ...
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< 1 ... 1377 1378 1379 1380 1381 1382 1383 1384 1385 ... 2014 >

Alternating current



Alternating current (AC), is an electric current in which the flow of electric charge periodically reverses direction, whereas in direct current (DC, also dc), the flow of electric charge is only in one direction. The abbreviations AC and DC are often used to mean simply alternating and direct, as when they modify current or voltage.AC is the form in which electric power is delivered to businesses and residences. The usual waveform of alternating current in most electric power circuits is a sine wave. In certain applications, different waveforms are used, such as triangular or square waves. Audio and radio signals carried on electrical wires are also examples of alternating current. These types of alternating current carry information encoded (or modulated) onto the AC signal, such as sound (audio) or images (video).
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