Atsuo Kawamura

TL;DR: In this paper, a contactless decentralized power supply with communication capability through only one transformer is proposed, and a prototype of a wireless transmission system of power and information (WTPI) was built, and the two-axis position controls of servo motors were achieved by transferring the power and signal through one rotatable high-frequency transformer.

TL;DR: In this article, a new control technique based on dead beat control theory to obtain a nearly sinusoidal PWM inverter output voltage is described, which inherently provides very good voltage regulation, phase positioning, and compensation for load disturbances and nonlinear loads.

TL;DR: In this article, a technique based on deadbeat control theory is proposed to obtain a nearly sinusoidal PWM (pulsewidth-modulated) inverter output voltage using only a voltage sensor.

TL;DR: In this article, the authors highlighted the effectiveness of the proposed closed-loop charging through the WTPI coupling, and the charging condition is optimized, according to the estimated estimation of the residual battery capacity.

TL;DR: By generalizing the relationship between the sampling period of plant output and the controlperiod of plant input, the proposed method can be applied to various systems with hardware restrictions of these periods, which leads to higher performance.