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Lead-free BiFeO3 thin films for tactile sensor using microcantilevers have been prepared on Pt and SrRuO3/Pt thin films on a SiO2/Si substrate by RF sputtering, and the electrical characteristics have been optimized by controlling the substrate temperature, gas pressure, and oxygen partial pressure in deposition process. The BiFeO3 thin film (thickness: 300 nm) deposited on SrRuO3 (thickness: 80 nm)...
This research aims to examine the possibility of Switched Reluctance Motor (SRM) for the application to servo system. This paper proposes a position control at the arbitrary rotor position using measured torque curves. This proposed method is able to compensate the magnetic nonlinearity and manufacturing flaw, and realizes precision torque and position control. This paper verifies our proposed method...
Recently development of the new concept motor for EV/HEV becomes very active. Due to the demands of expanding the high efficiency and controllable torque area, we proposed a novel Claw Pole Type Half-Wave Rectified Variable Field Flux Motor (CP-HVFM). This motor is simple and robust brushless structure and has variable field flux performance. This paper introduces the principle of variable field flux...
To decrease the switching loss and to reduce the surge voltage and current of a Matrix Converter (MC) using a high carrier frequency, the auxiliary resonant commutated pole (ARCP), a soft switching technique, is applied to a MC (ARCPMC). The ARCPMC system has an auxiliary switch linked to each output phase. The auxiliary switch generates the switching and conduction losses. This paper aims to examine...
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