Abstract: A power assisted electric bicycle includes a body, a motor, a torque sensor, and a controller. The motor is operated in an operating period. The torque sensor is configured to output a plurality of torque signals corresponding to a pedal force. The controller is coupled to the motor and the torque sensor. The controller is configured to: receive the torque signals from the torque sensor; determine a peak and a valley, which is adjacent to the peak, among the torque signals; compute and determine a pedaling period between the peak and the valley, which is adjacent to the peak, among the torque signals; and generate an error signal associated with the torque sensor if it is determined that the pedaling period and the operating period fail to meet a default ratio.

Abstract: A wristwatch and a power saving method thereof are provided herein. The wristwatch comprises: a time indicating device, configured to provide time information; a housing, defining a receiving room; a short distance communication module disposed in the receiving room, configured to implement short distance wireless communication with an external device, the communication module comprising: a security element, configured to process user security data; and a first coil, coupled to the security element and configured to transmit electromagnetic signals to communicate with the external device; the wristwatch further comprising: a second coil, coupled to the communication module, configured to sense an external magnetic field to generate a sensing signal, the sensing signal provided for controlling the communication module to be turned on or off to enable or disable transmission of the electromagnetic signals of the first coil. The wristwatch can reduce power consumption.

Abstract: A power assisted electric bicycle includes a body, a motor, a torque sensor, and a controller. The motor is operated in an operating period. The torque sensor is configured to output a plurality of torque signals corresponding to a pedal force. The controller is coupled to the motor and the torque sensor. The controller is configured to: receive the torque signals from the torque sensor; determine a peak and a valley, which is adjacent to the peak, among the torque signals; compute and determine a pedaling period between the peak and the valley, which is adjacent to the peak, among the torque signals; and generate an error signal associated with the torque sensor if it is determined that the pedaling period and the operating period fail to meet a default ratio.

Abstract: The present disclosure provides a power assisted electric bicycle, a transmission device and a control method. The power assisted electric bicycle includes a body, a wheel, a torque sensor, a motor and a controller. The torque sensor is configured to output a plurality of torque signals corresponding to a pedal force. The controller is configured to: receive the torque signals from the torque sensor; compute and determine a first period according to a speed of the power assisted electric bicycle at a first time point; obtain a first maximum value of the torque signals in the first period that ends at the first time point; and, set a first torque output of the motor according to the first maximum value corresponding to the torque signal.

Abstract: A wristwatch and a power saving method thereof are provided herein. The wristwatch comprises: a time indicating device, configured to provide time information; a housing, defining a receiving room; a short distance communication module disposed in the receiving room, configured to implement short distance wireless communication with an external device, the communication module comprising: a security element, configured to process user security data; and a first coil, coupled to the security element and configured to transmit electromagnetic signals to communicate with the external device; the wristwatch further comprising: a second coil, coupled to the communication module, configured to sense an external magnetic field to generate a sensing signal, the sensing signal provided for controlling the communication module to be turned on or off to enable or disable transmission of the electromagnetic signals of the first coil. The wristwatch can reduce power consumption.

Abstract: The regenerative braking controlling system includes an armature current sampling module, a calculating module, and an adjusting module. The calculating module includes a power calculating unit, an optimum phase angle calculating unit, an optimum regenerative current calculating unit, and a sub-optimum regenerative current calculating unit. The armature current sampling module samples current of the three phase armature windings. The power calculating unit determines a relationship between a regenerative power and a phase angle of the armature currents. The optimum phase angle calculating unit calculates an optimum phase angle, and obtain a phase regenerative path based on the optimum phase angle. The optimum regenerative current calculating unit calculates an optimum regenerative current limit point. The sub-optimum regenerative current calculating unit calculates a sub-optimum regenerative current limit point.

Abstract: A smart wristwatch structure includes a glass, a dial, a watch case, a bottom case, a movement, an antenna, a functional module, and a dedicated battery. The dial, the watch case, and the bottom case construct an accommodating space from top to bottom. The antenna is adhered to a lower surface of the glass. The functional module is disposed in the accommodating space for wirelessly communicating with a mobile terminal. The dedicated battery provides power for the functional module or the movement. In the smart wristwatch structure, signals are not shielded, and the thickness of the watch case is not increased significantly.

Abstract: A smart wristwatch structure includes a glass, a dial, a watch case, a bottom case, a movement, an antenna, a functional module, and a dedicated battery. The dial, the watch case, and the bottom case construct an accommodating space from top to bottom. The antenna is adhered a lower surface of the glass. The functional module is disposed in the accommodating space for wirelessly communicating with a mobile terminal. The dedicated battery provides power for the functional module or the movement. In the smart wristwatch structure, signals are not shielded, and the thickness of the watch case is not increased significantly.

Abstract: A control apparatus for a motor having a rotor includes a resolver, a processor, a decoder, a sensor, and a motor driver. The resolver outputs waveforms sensed from a rotation of the rotor. The decoder generates an absolute angle signal and an incremental angle signal in response to the waveforms from the resolver and provides the absolute angle signal and the incremental angle signal to the processor. The sensor estimates a positioning angle of the rotor and provides an estimated angle signal in response to the positioning angle of the rotor to the processor. When one of the absolute angle signal, the incremental angle signal, and the estimated angle signal is transmitted to the processor, the processor executes a predetermined program associated with the respective absolute angle signal, the incremental angle signal, and the estimated angle signal, to control the motor driver to rotate the rotor.

Abstract: The regenerative braking controlling system includes an armature current sampling module, a calculating module, and an adjusting module. The calculating module includes a power calculating unit, an optimum phase angle calculating unit, an optimum regenerative current calculating unit, and a sub-optimum regenerative current calculating unit. The armature current sampling module samples current of the three phase armature windings. The power calculating unit determines a relationship between a regenerative power and a phase angle of the armature currents. The optimum phase angle calculating unit calculates an optimum phase angle, and obtain a phase regenerative path based on the optimum phase angle. The optimum regenerative current calculating unit calculates an optimum regenerative current limit point. The sub-optimum regenerative current calculating unit calculates a sub-optimum regenerative current limit point.

Abstract: A control apparatus for a motor having a rotor includes a resolver, a processor, a decoder, a sensor, and a motor driver. The resolver outputs waveforms sensed from a rotation of the rotor. The decoder generates an absolute angle signal and an incremental angle signal in response to the waveforms from the resolver and provides the absolute angle signal and the incremental angle signal to the processor. The sensor estimates a positioning angle of the rotor and provides an estimated angle signal in response to the positioning angle of the rotor to the processor. When one of the absolute angle signal, the incremental angle signal, and the estimated angle signal is transmitted to the processor, the processor executes a predetermined program associated with the respective absolute angle signal, the incremental angle signal, and the estimated angle signal, to control the motor driver to rotate the rotor.

Abstract: The present invention provides an evaporation boat, comprising: a source material container configured to contain source material and provided with an opening; a cover plate disposed, with a predetermined gap, above the opening of the source material container, wherein the vertical projection of the cover plate covers the opening of the source material container, so that the scattering range of the source material vapor formed by evaporating the source material is controlled by the cover plate as the source material vapor scatters through the predetermined gap to the outside of the evaporation boat; and a supporting member connecting the source material container and the cover plate to maintain a predetermined gap therebetween.

Abstract: The invention provides a pad conditioner for conditioning a CMP pad. The pad conditioner includes a substrate, a plurality of cavities on the substrate, a bonding agent filling in the cavities, and a plurality of abrasive particles securely placed and fixed in the cavities separately. The cavities are arranged in a regular manner and each cavity is sized such that it can accommodate only one abrasive particle. The cavities may be bowl-shaped or of other shapes. A method of making such a pad conditioner is also disclosed.

Abstract: The present invention discloses a vacuum evaporation apparatus comprising a vacuum pump, an evaporation chamber and a power supply. The evaporation chamber comprises a substrate, an evaporation source and an evaporation mask. The evaporation mask exhibits a coefficient of thermal expansion substantially equal to the substrate, and the evaporation mask has a pattern of metal tracks. Thus, the apparatus of the present invention also can be applied to form solder bumps on a large sized silicon wafer. Moreover, the position pattern of the mask is formed by an anisotropic etching process; the diameter of the pattern will not be influenced by the thickness of the mask. Therefore, the tendency of the solder bumps with the smaller size and the pitch are met.