Abstract: A touch display device, including: a touch display substrate, provided with a display region and a non-display region provided adjacent to the display region, wherein the non-display region is provided with a display bonding region and a touch bonding region; and a flexible circuit board, provided with a touch signal line, a touch chip and a display signal line, wherein the touch signal line is connected with the touch chip, the flexible circuit board is bound with the touch display substrate in the display bonding region and the touch bonding region, the touch chip is connected to the touch bonding region through the touch signal line, and the display signal line is connected to the display bonding region; where the touch chip, the touch signal line and the touch bonding region are provided on a same side of the display signal line.

Abstract: The present disclosure is directed to a permanent magnet motor control method and system. A new structure configuration of a permanent magnet motor has a rotor with two or more permanent magnets attached thereon, a stator wound in a “Y” topology with three coils (windings) arranged at 120 degree among one another, and a neutral point of the wound stator wired in a manner that the voltage at the neutral point may be detected in substantially real time. The detected neutral point voltages are analyzed together with the associated vectors of the excitation current provided to the windings of the stator to determine a speed of the rotor. The determined speed of the rotor is used for vector control.

Abstract: The present disclosure is directed to a permanent magnet motor control method and system. A new structure configuration of a permanent magnet motor has a rotor with two or more permanent magnets attached thereon, a stator wound in a “Y” topology with three coils (windings) arranged at 120 degree among one another, and a neutral point of the wound stator wired in a manner that the voltage at the neutral point may be detected in substantially real time. The detected neutral point voltages are analyzed together with the associated vectors of the excitation current provided to the windings of the stator to determine a speed of the rotor. The determined speed of the rotor is used for vector control.