The present invention discloses a phase lead compensation network, power converters, and closed-loop control system, the phase lead compensation network is provided in the power converter closed-loop control system, the closed loop control system further comprises: power converter and control module.....
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An ultrasonic transducer driver has a giant magnetostrictive element, a fastener for holding the giant magnetostrictive element under mechanical pressure, a first field generator for providing a magnetic bias field, a second field generator for providing a magnetic drive field and a magnetic circuit.....
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The present invention relates to a method for connecting the auxiliary and joint operation of appendages worn device, system, and method. The attachment means comprises: means for generating a linear motion of linear motion unit, said unit having a linear motion of the appendage portion operatively .....
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A method for processing odorous compounds polluted air system, which is including plants, microorganisms agglutinative plant body and the packed bed - microbial symbiosis system, wherein the microorganism polymer living body, including bacteria, photosynthetic and heterotrophic algae and yeast ferme.....
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A method for testing a sample of the infrared fabric attributes, the apparatus comprising: a frame, including setting on both sides of the two slide rods and provided at the lower portion of a base; bionic skin model, which is provided in the frame base; infrared radiation source disposed on the top.....
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