Abstract: A driving circuit comprises three switch groups, each comprising a first switch, a second switch, a third switch and a fourth switch. The first and the second switches are coupled in series. The third switch is serially coupled to the fourth switch and coupled between the first and the second switches. An ith inductor of a first driving device is coupled between the third and the fourth switches, wherein i ranges between 1˜3. In high speed mode, the first and the third switches of one of the switch groups are turned on, the second and the fourth switches are turned off, the first and the third switches of another of the switch groups are turned off, the second switch is turned on, and the fourth switch is turned on or off to raise voltage of the a driving device.

Abstract: A non-contact measurement signal transmission system for a wheeler device includes a detection device, a magnetic coupling device, and a pressure sensing device. The detection device is disposed on a body of the wheeler device, and is used for generating an alternating current (AC) signal. The magnetic coupling device includes a first primary side and a first secondary side. The magnetic coupling device receives the AC signal at the first secondary side and emits a magnetic coupling signal from the first primary side. The pressure sensing device disposed on a rotator receives the magnetic coupling signal, and includes a forced portion and a base. The pressure sensing device responds a feedback signal according to a relative displacement between the forced portion and the base after receiving a press of a user. The detection device outputs a forced signal according to the feedback signal.

Abstract: A driving circuit comprises three switch groups, each comprising a first switch, a second switch, a third switch and a fourth switch. The first and the second switches are coupled in series. The third switch is serially coupled to the fourth switch and coupled between the first and the second switches. An ith inductor of a first driving device is coupled between the third and the fourth switches, wherein i ranges between 1˜3. In high speed mode, the first and the third switches of one of the switch groups are turned on, the second and the fourth switches are turned off, the first and the third switches of another of the switch groups are turned off, the second switch is turned on, and the fourth switch is turned on or off to raise voltage of the a driving device.

Abstract: A permanent magnet (PM) motor and a rotor core thereof are provided. The PM motor includes a rotor core and a stator. The stator is disposed around the rotor core, and the rotor core is disposed along a rotation axis. The rotor core includes a magnetic core and multiple groups of PMs. The rotation axis passes through the magnetic core, and the PMs are disposed in the magnetic core around the rotation axis and in pairs. Each group of PMs includes a first PM and a second PM, which are symmetrically disposed at two opposite sides of a corresponding radial plane. Each group of PMs includes a common perpendicular line perpendicularly intersecting magnetic pole lines of the group of PMs, and a first angle exists between the common perpendicular line and the rotation axis.

Abstract: A semiconductor structure and a method for manufacturing the same are provided. The semiconductor structure includes a substrate, a die and a medium. The substrate has an upper substrate surface. The substrate has a trench extended downward from the upper substrate surface. The trench has a side trench surface. The die is in the trench. The die has a lower die surface and a side die surface. The lower die surface is below the upper substrate surface. A part of the trench between the side trench surface and the side die surface is filled with the medium.

Abstract: A power conversion circuit for decentralizing input current includes a capacitor, a first inductor, a first switching circuit, a first discharging circuit, a second inductor, a second switching circuit, a second discharging circuit, and a control circuit. Under control of the control circuit, the first switching circuit and the second switching circuit are alternately conducted, and the second switching circuit is successively conducted when the first switching circuit is shut off.

Abstract: A non-contact measurement signal transmission system for a wheeler device includes a detection device, a magnetic coupling device, and a pressure sensing device. The detection device is disposed on a body of the wheeler device, and is used for generating an alternating current (AC) signal. The magnetic coupling device includes a first primary side and a first secondary side. The magnetic coupling device receives the AC signal at the first secondary side and emits a magnetic coupling signal from the first primary side. The pressure sensing device disposed on a rotator receives the magnetic coupling signal, and includes a forced portion and a base. The pressure sensing device responds a feedback signal according to a relative displacement between the forced portion and the base after receiving a press of a user. The detection device outputs a forced signal according to the feedback signal.

Abstract: A power conversion circuit for decentralizing input current includes a capacitor, a first inductor, a first switching circuit, a first discharging circuit, a second inductor, a second switching circuit, a second discharging circuit, and a control circuit. Under control of the control circuit, the first switching circuit and the second switching circuit are alternately conducted, and the second switching circuit is successively conducted when the first switching circuit is shut off.