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After preliminary tests using a small 25 mm-caliber electromagnetic launcher, a larger mid-caliber launcher has been designed and fabricated. The launcher has a rectangular bore of 40 mm $\times $ 50 mm, where the rails are separated by 50 mm from each other and are 5.6 m long. To deliver an electrical current to the launcher, a new 4.8-MJ pulsed power supply (PPS) consisting of eight 600-kJ segments...
In this paper, the control performances of the three phase SVPWM inverter according to the phase current measuring method are compared. For this comparison, the current measuring methods using a current transducer (CT) and a shunt resistor are adopted. Furthermore, in the case of three shunt resistors are connected between under the emitter of power switch and the dc-link ground for phase current...
In this paper, the control performance of permanent magnet synchronous motor (PMSM) according to phase current sensing methods is analyzed. For this analysis, the current sensing methods using a current transducer (CT) and a shunt resistor are adopted. The strengths and weaknesses of the each method are analyzed, and the comparative study according to both methods is then performed. The detail analysis...
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