Mitsubishi Electric

About: Mitsubishi Electric is a company organization based out in Ratingen, Germany. It is known for research contribution in the topics: Signal & Voltage. The organization has 23024 authors who have published 27591 publications receiving 255671 citations. The organization is also known as: Mitsubishi Electric Corporation & Mitsubishi Denki K.K..

Change of Pt Distribution in the Active Components of Phosphoric Acid Fuel Cell

Abstract: Analyses post-mortem de l'evolution de la distribution du catalyseur platine dans les composants de la pile a combustible a l'acide phosphorique

Adaptive Estimation of the State of Charge for Lithium-Ion Batteries: Nonlinear Geometric Observer Approach

Abstract: This paper considers the state of charge (SoC) and parameter estimation of lithium-ion batteries. Different from various prior arts, where estimation is based on local linearization of a nonlinear battery model, nonlinear geometric observer approach is followed to design adaptive observers for the SoC and parameter estimation based on nonlinear battery models. A major advantage of the proposed approach is the possibility to establish the exponential stability of the resultant error dynamics of state and parameter estimation. The proposed adaptive observers are shown to be robust with respect to unmodeled process uncertainties. Analysis also shows the design tradeoff between the convergence rate and the robustness of the estimation error dynamics with respect to the measurement noise. Simulation and experimental results validate the effectiveness and main advantages of the proposed approach. Error analysis is presented and explains the experimental results.

Method for rewriting defect management areas on optical disk according to ECMA standard

Abstract: A method for rewriting four defect management areas on an optical disk according to an ECMA standard is performed by means of deleting an old data which has been recorded on the respective defect management areas and then sequentially writing down a new data on respective defect management areas.

Image display and light-emitting device

Abstract: A liquid crystal projector having a simple optical system and operating at a high efficiency of use of light, comprises a light-emitting device (50), a parallel transforming optical system (60), an optical switch (70), and a display optical system (80). The light-emitting device (50) includes LD arrays (51, 52, 53) where semiconductor lasers (54) are arranged two-dimensionally. The output beams from the semiconductor lasers (54) are transformed into parallel beams by means of the lens arrays (61, 62, 63). Since the output beams from the semiconductor lasers (54) are linearly P- or S-polarized, no polarization transforming optical system is needed. By adequately combining semiconductor lasers (54), the shapes of the LD arrays (51, 52, 53) can be the same as those for light utilization of a red-light transmission liquid crystal panel (71), a green-light transmission liquid crystal panel (72), and a blue-light transmission liquid crystal panel (73).

Double gate static induction thyristor

Abstract: A double gate static induction thyristor comprises a semiconductor substrate, a first gate region formed at a first principal surface of the substrate, and a first semiconductor region of a first conduction type formed on the same first principal surface. A second gate region is formed at a second principal surface of the substrate, and a second semiconductor region of a second conduction type is formed on the same second principal surface. Gate electrodes are formed on the first and second gate regions, and main electrodes are formed on the first and second semiconductor regions, so that portions of the semiconductor regions surrounded by the gate regions form a current path between the main electrodes. Further, impurity is deeply diffused in portions of the first and second gate regions formed with the gate electrodes.