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To increase the deformation depth of a tube in an electromagnetic forming system, a triple-coil system was proposed and analyzed in this paper. The system consisted of three coils, in which one coil was placed in the middle plane, whereas the other two coils connected in series were placed at either end of the tube. The first type of coil was used for radial expansion, and the second type of coil...
A novel structure of the integrated cascode crystal oscillator is presented by analyzing the discrete oscillator circuits in this paper. A temperature-independent voltage source, which is suitable for integrated circuits, was used for biasing of the buffer amplifier, while eliminating the bypass capacitor. Both the oscillator circuits and the buffer amplifier use the common divider resistance. The...
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