Abstract: A power circuit common mode filter includes: a U-shaped soft magnetic core and two cylindrical soft magnetic cores, wherein recessed grooves are provided at tops of two side walls of the U-shaped soft magnetic core, and the two cylindrical soft magnetic cores are movably installed in the U-shaped soft magnetic core; two ends of each of the cylindrical soft magnetic cores are embedded in the corresponding recessed grooves, and a coil is set on each of the two cylindrical soft magnetic cores in the U-shaped soft magnetic core; the U-shaped soft magnetic core and the cylindrical soft magnetic cores are both covered with a high-voltage-resist insulating material to form insulating layers; surfaces of the insulating layers at the recessed grooves are provided with electrode layers, and ends of the coil is fixedly connected to the electrode layers through soldering tin.

Abstract: A method for preparing a metallic magnetic powder core integrated chip inductor, includes steps of: winding a spiral coil, compression molding, chamfering, curing, insulation coating, grinding, electrode copper plating. The integrated chip inductor of the present invention iterates the current industry's technology of paste-terminated electroplating integrated inductors, copper chip terminal electrode integrated inductors, and built-in T-shaped magnetic core pendulum winding electrode products, thereby reducing the installation size of the product on the circuit board increases the installation space of the integrated circuit PCB board. The present invention can realize intelligent manufacturing, achieve resource saving and environmental friendliness, and can create unique value for the development of the world's electronic industry.

Abstract: A power circuit common mode filter includes: a U-shaped soft magnetic core and two cylindrical soft magnetic cores, wherein recessed grooves are provided at tops of two side walls of the U-shaped soft magnetic core, and the two cylindrical soft magnetic cores are movably installed in the U-shaped soft magnetic core; two ends of each of the cylindrical soft magnetic cores are embedded in the corresponding recessed grooves, and a coil is set on each of the two cylindrical soft magnetic cores in the U-shaped soft magnetic core; the U-shaped soft magnetic core and the cylindrical soft magnetic cores are both covered with a high-voltage-resist insulating material to form insulating layers; surfaces of the insulating layers at the recessed grooves are provided with electrode layers, and ends of the coil is fixedly connected to the electrode layers through soldering tin.

Abstract: The present disclosure relates to accessing data stored in a secure manner in an unsecure memory, based on signatures forming an integrity check tree comprising a root signature stored in a secure storage space, and lower-level signatures stored in the unsecure memory. One embodiment calculates a first-level signature from the data in a group comprising a changed datum, and temporarily stores the signature calculated in a secure memory. The embodiment calculates a signature to check the integrity of a lower-level signature by using the signature to be checked and a second signature belonging to a same group as the signature to be checked, read as a priority in the secure memory and in the unsecure memory if it has different values in the secure and unsecure memories.

Abstract: A composite sheet has confined flexibility and is used in a safety pneumatic tire which is self-supporting under zero inflation pressure. The composite sheet comprises a matrix of high modulus solid objects, low modulus material, and optionally a matrix of cords, the high modulus solid objects being assembled to form a mechanism which allows the composite sheet to bend easily within predetermined ranges and confines the composite sheet from further bending when the limits of the predetermined ranges are reached. The safety pneumatic tire comprises a pair of the composite sheets disposed at sidewall regions under a carcass and/or a layer of the composite sheet disposed above a belt package. A method of making the composite sheet includes forming a chain of the high modulus solid objects having a desired locking position.

Abstract: This invention discloses a composite sheet with confined flexibility, a method of making it and a safety tire in which said composite sheet of present invention is used. Said composite sheet comprises a mechanism embedding in rubber. Said mechanism allows the composite sheet bend easily within predetermined ranges and confines the composite sheet from further bending when the limits of said predetermined ranges are reached. Said safety tire comprises a pair of said composite sheets disposing at sidewall regions and a layer of said composite sheet disposing above belt package. Said safety tire has high puncture-resistance and comparable riding comfortness over conventional tire. Said safety tire is self-supporting and still provides good maneuverability to vehicle under zero inflation pressure.