30results about How to "Reduce winding length" patented technology

The invention relates to a ring coil motor (1, 20) with a primary part (3, 21) and a secondary part (2, 22), wherein the primary part (3, 21) has a ring coil (6, 25) and permanent magnets (9, 27).

The present invention relates to an elliptical unit block for preparing a core using a soft magnetic metal powder, and a core with excellent high current DC bias characteristics using the same, and more specifically, to an elliptical unit block for preparing a core using a soft magnetic metal powder used in an inductor for an automotive electronic sub-assembly using a high current buck or boost inductor or a three phase line reactor or fuel cell system for power factor correction (PFC), and a powdered magnetic core prepared using the same.

The invention discloses a built-in self-test designing method of multiple embedded memories on single chip. In the method, reasonable memory built-in self-test scheme and structure are determined according to the working frequency, size, port type, number and layout of memories on a chip; in design, multiple memory built-in self-test logics are inserted, a test way of multiple combinations of serial and parallel tests is realized, the test time, test cost, test power consumption and area increase of test logics of the memories are optimized, the test efficiency is improved, and the layout wiring and timing closure in layout design are facilitated; a clock selection logic circuit is added to realize high-speed test and low-speed test; and moreover, with additional bypass logic of the memory, the loss of test coverage in a digital logic scanning test caused by the memory shadow logic can be eliminated, and the test coverage is increased.

The invention discloses a touch display driving circuit, an arithmetic circuit, a display device and an operation method thereof. The touch display device includes a touch display driving circuit, a touch computing circuit and a processor. In the normal mode, the touch computing circuit obtains the control right, so as to obtain touch sensing data about the touch display panel from the touch display driving circuit. In the burning mode, the processor provides the program code to the touch display driving circuit, and controls the touch display driving circuit to obtain the control right, and the touch display driving circuit burns the program code into the touch computing circuit.

The invention relates to a direction changing type yarn textile working guide tensioning device and method. A bottom plate, direction changing pulley rods, an annular sliding groove, a connecting column, a connecting disc, anti-loosening devices and a rotating disc are included; the bottom plate is provided with the annular sliding groove, the annular sliding groove is connected with the directionchanging pulley rods in a sliding fit manner, the connecting column is installed in the middle portion of the bottom plate, the connecting column is located between the two direction changing pulleyrods, the upper end of the connecting column is provided with the connecting disc, the anti-loosening devices are evenly formed in the connecting disc in the circumferential direction, and the upper end of the connecting disc is provided with the rotating disc. According to the direction changing type yarn textile working guide tensioning device and method, yarns are synchronously supported to beopen through the anti-loosening devices, the winding length of the yarns is changed, and the yarns are wholly in the tightening state; and the conveying direction of the yarns is changed by position adjustment of the two direction changing pulley rods, friction generated when the yarns are subjected to direction-changing conveying, and the abrasion degree of the yarns is reduced.

The invention discloses a design method for optimizing the metal wiring of a herringbone clock tree, which comprises the following steps: 1) before placing the logic units in the chip, the overall module is divided into squares with a side length of 30 microns, and each In a square, the density of logic units is placed so that the logic units are evenly distributed. 2) Take out the vertical coordinates of adjacent fishbone tree branches, calculate the distance between adjacent fishbone tree branches, and record it as a, and create a horizontal line block at the center point of each adjacent branch. 3) Starting from the main trunk of the fishbone tree and taking a as the interval, create vertical routing blockages to the left and right respectively. 4) Grab the line names of the drive of the fishbone clock tree connected to its load, give priority to metal routing for these connections, delete the metal routing obstructions after the routing is completed, and then perform global routing. The invention saves interconnection line resources, optimizes clock structure and improves clock quality.