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HW 2
HW 2

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... amount of harmonic current [1], [2]. Voltage distortion or harmonics resulting from current harmonics produced by power electronic equipment has become a serious problem to be solved in many countries. Power system harmonics are not a new problem. Due to the widespread proliferation of nonlinear dis ...
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... less coupling to coilform. Subsequently, we developed another conductive coilform that completely enclosed coil 2. A Teflon heat-shrink sleeve 0.4 mm thick was placed over the entire length of the coilform. An acrylic tube was then placed over the coilform (3.1 mm wall thickness) and held in place w ...
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Opto-isolator



In electronics, an opto-isolator, also called an optocoupler, photocoupler, or optical isolator, is a component that transfers electrical signals between two isolated circuits by using light. Opto-isolators prevent high voltages from affecting the system receiving the signal. Commercially available opto-isolators withstand input-to-output voltages up to 10 kV and voltage transients with speeds up to 10 kV/μs.A common type of opto-isolator consists of an LED and a phototransistor in the same opaque package. Other types of source-sensor combinations include LED-photodiode, LED-LASCR, and lamp-photoresistor pairs. Usually opto-isolators transfer digital (on-off) signals, but some techniques allow them to be used with analog signals.
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