Abstract: Disclosed are a method and system for redundancy switch between two controllers for supplementary damping of a governor, relating to the technical field of control methods. The method includes acquiring a participation condition according to an output result, listing the participation condition in a truth value table and supplementing correlation logic; outputting the correlation logic as an image language, and simplifying the image language; and acquiring switch logic by a simplified image language, and transforming the switch logic into a programming language of the controller. A complex control relation can be decomposed in the disclosure, so that the difficulty can be reduced, and a correct and comprehensive control purpose can be achieved. Moreover, the method has universality.

Abstract: Described herein is a multi-level power convertor and a method for a multi-level power convertor. The multi-level power convertor includes a DC port; an AC port; a first power converting unit, a second power converting unit, a coupling inductor, and an inductive filtering unit. The first power converting unit is coupled to the DC port and includes a first AC terminal adapted to provide a first plurality of voltage levels. The second power converting unit is coupled to the DC port and includes a second AC terminal adapted to provide a second plurality of voltage levels, where the second plurality of voltage levels are phase-shifted by 90 degrees with respect to the first plurality of voltage levels. The coupling inductor includes first and second windings with a same number of turns. The inductive filtering unit is arranged between the AC port and ends of the first and second windings.

Abstract: A multi-level power convertor is provided. The multi-level power convertor includes a DC port, an AC port, a first power converting unit coupled to the DC port and including a first AC terminal adapted to provide a first plurality of voltage levels, a second power converting unit coupled to the DC port and including a second AC terminal adapted to provide a second plurality of voltage levels of the same number as the first plurality of voltage levels, a coupling inductor including first and second windings with the same number of turns, and an inductive filtering unit arranged between the AC port and the second and fourth ends of the first and second windings.

Abstract: A method for preparing carbon black from pyrolysis char of waste tires by a molten salt thermal treatment and a product thereof are provided. The method includes heating one or two groups of a metal chloride salt group and a metal sulfate group to obtain a molten salt; adding pyrolysis char of waste tires into the molten salt and subjecting same to a molten salt thermal treatment under a preset reaction atmosphere; after the reaction is complete, separating the reaction product to obtain a secondary molten salt and treated pyrolysis char, washing the treated pyrolysis char with hot water and then drying same so as to obtain carbon black, and at the same time, recycling the secondary molten salt.

Abstract: Described herein is a multi-level power convertor and a method for a multi-level power convertor. The multi-level power convertor includes a DC port; an AC port; a first power converting unit, a second power converting unit, a coupling inductor, and an inductive filtering unit. The first power converting unit is coupled to the DC port and includes a first AC terminal adapted to provide a first plurality of voltage levels. The second power converting unit is coupled to the DC port and includes a second AC terminal adapted to provide a second plurality of voltage levels, where the second plurality of voltage levels are phase-shifted by 90 degrees with respect to the first plurality of voltage levels. The coupling inductor includes first and second windings with a same number of turns. The inductive filtering unit is arranged between the AC port and ends of the first and second windings.

Abstract: A method for preparing carbon black from pyrolysis char of waste tires by a molten salt thermal treatment and a product thereof are provided. The method includes heating one or two groups of a metal chloride salt group and a metal sulfate group to obtain a molten salt; adding pyrolysis char of waste tires into the molten salt and subjecting same to a molten salt thermal treatment under a preset reaction atmosphere; after the reaction is complete, separating the reaction product to obtain a secondary molten salt and treated pyrolysis char, washing the treated pyrolysis char with hot water and then drying same so as to obtain carbon black, and at the same time, recycling the secondary molten salt.

Abstract: A system and method is disclosed for implementing a new bipolar-based silicon controlled rectifier (SCR) circuit for an electrostatic discharge (ESD) protection. The SCR circuit comprises a bipolar device to be formed on a semiconductor substrate. The bipolar device comprises at least an N-well for providing a high resistance and a P+ material to be used as a collector thereof for further providing a high resistance. At least an Nmoat guard ring and a Pmoat guard ring surround the bipolar device, wherein when an ESD event occurs, the high resistance provided by the N-well and the P+ material of the bipolar device increases a turn-on speed.

Abstract: A semiconductor structure for electrostatic discharge protection is presented. The semiconductor structure comprises a grounded gate nMOS (GGNMOS) having a substrate, a gate electrode, a source region and a drain region. A plurality of contact plugs is formed on the source and drain side. A plurality of first level vias is electrically coupled to the GGNMOS and has a substantially asymmetrical layout in the source and drain regions. A second level via(s) re-routes the ESD current to the desired first level vias. The uniformity of the current flow in the GGNMOS is improved.

Abstract: The present invention discloses an apparatus for measuring spectrum and image with high spatial resolution and spectral resolution. The apparatus comprises an imaging side telecentric lens for collecting light from an object, an optical slit positioned behind the imaging side telecentric lens, an aspheric lens for collimating lights from the optical slits, a dispersing device for separating the lights of different wavelengths into a plurality of sub-rays of different entrance angle, an achromatic lens for focusing the sub-rays, and an optical sensor for detecting the optical intensity of the sub-rays. The dispersing device can be a transmission or reflection diffraction grating, and the optical sensor may consist of a plurality of photo-detectors positioned in a two dimensional array.

Abstract: An ultra thin MOSFET device structure located on an insulator layer, and a method of forming the ultra thin MOSFET device structure featuring a strained silicon channel located on the underlying insulator layer, has been developed. After epitaxial growth of a semiconductor alloy layer such as silicon-germanium (SiGe), on a first semiconductor substrate, a strained silicon channel layer, under biaxial tensile strain, is epitaxially grown on the underlying semiconductor alloy layer. Bonding of the strained silicon channel layer of the first semiconductor substrate, to a silicon oxide layer located on the surface of a second semiconductor substrate, is followed by a cleaving procedure performed at the interface of the strained silicon channel layer and the underlying semiconductor alloy layer, resulting in the desired configuration comprised of strained silicon channel layer-underlying insulator layer-second semiconductor substrate.