Abstract: A system-on-chip includes: an embedded memory module and its peripheral digital module, the embedded memory module includes at least one embedded memory cell, and the digital module includes at least one first MOS transistor and at least one standard cell; the standard cell includes at least one second MOS transistor, and the embedded memory cell includes at least one third MOS transistor, each of the first, second, and third MOS transistors includes a gate and a gate oxide layer underlying the gate, and the gate oxide layers of the second and third MOS transistors have the same thickness and are both thinner than the gate oxide layer of the first MOS transistor.

Abstract: The disclosure provides a variable aperture drive motor, a camera apparatus, and an electronic device. A variable aperture drive motor, includes: a base assembly, the base assembly being provided with an accommodating cavity; a lens support body, at least a part of the lens support body being movably provided inside the accommodating cavity; driving magnets, wherein there are a plurality of driving magnets; driving coils, wherein there are a plurality of driving coils, the driving coils are provided on a side wall of the base assembly corresponding to the driving magnets, and the driving magnets and the driving coils are relatively induced so that the lens support body rotates relative to the base assembly; and first magnetic attraction plates, wherein there are a plurality of first magnetic attraction plates, and the first magnetic attraction plates are provided on a bottom end of the base assembly corresponding to the driving magnets.

Abstract: The disclosure provides an aperture adjusting apparatus, a camera module, and a mobile terminal. The aperture adjusting apparatus includes a cover plate assembly and a base assembly. The cover plate assembly covers the base assembly and forms an accommodating space with the base assembly. The aperture adjusting apparatus further includes a rotating support, a driving magnet, a driving coil, a first magnetic piece, and a blade assembly arranged in the accommodating space. The rotating support is rotatably arranged inside the accommodating space. The driving magnet is arranged on a circumferential side wall of the rotating support, and the driving magnet is formed by combining at least two single-pole magnetic strips or is directly formed by a multi-stage magnet that is integrally formed; the first magnetic piece is arranged on the cover plate assembly corresponding to the driving magnet.

Abstract: The present disclosure discloses a rail vehicle. The rail vehicle includes: a plurality of bogies, where the bogie has a straddle recess suitable for straddling a rail; and a vehicle body, where the vehicle body is connected to the plurality of bogies and pulled by the plurality of bogies to travel along the rail, and the vehicle body includes a plurality of compartments hinged sequentially along a length direction of the rail; the plurality of compartments forms at least one compartment group, the compartment group includes three compartments hinged sequentially, and the bottom of each of only compartments that are located at two ends of the compartment group and that are of the three compartments is connected to the bogie; and in the length direction of the rail, a surface that is of a compartment at at least one end of the vehicle body and that faces away from an adjacent compartment is provided with an escape door that can be opened and closed.

Abstract: The present disclosure discloses a rail vehicle. The rail vehicle includes: a plurality of bogies, where the bogie has a straddle recess suitable for straddling a rail; and a vehicle body, where the vehicle body is connected to the plurality of bogies and pulled by the plurality of bogies to travel along the rail, and the vehicle body includes a plurality of compartments hinged sequentially along a length direction of the rail; the plurality of compartments forms at least one compartment group, the compartment group includes three compartments hinged sequentially, and the bottom of each of only compartments that are located at two ends of the compartment group and that are of the three compartments is connected to the bogie; and in the length direction of the rail, a surface that is of a compartment at at least one end of the vehicle body and that faces away from an adjacent compartment is provided with an escape door that can be opened and closed.

Abstract: A pre-amplifier comprises at least two PMOS transistors operated as source followers and two NMOS transistors operated as amplifiers, or, two NMOS transistors operated as source followers and two PMOS transistors operated as amplifiers to raise or reduce the voltage of input signals and at least four current sources with the same current value which can be adjusted according to the output load of the pre-amplifier. The MOS transistors have the same transconductance so that the minimum differential voltage can be attained. Since the differential signals change alternately, MOS transistors will switch among the three working status: cut-off, saturation and linear region. Because of the cut-off and linear region, the present invention can achieve the very low power consumption less than one third of the conventional one.

Abstract: A pre-amplifier comprises at least two PMOS transistors operated as source followers and two NMOS transistors operated as amplifiers, or, two NMOS transistors operated as source followers and two PMOS transistors operated as amplifiers to raise or reduce the voltage of input signals and at least four current sources with the same current value which can be adjusted according to the output load of the pre-amplifier. The MOS transistors have the same transconductance so that the minimum differential voltage can be attained. Since the differential signals change alternately, MOS transistors will switch among the three working status: cut-off, saturation and linear region. Because of the cut-off and linear region, the present invention can achieve the very low power consumption less than one third of the conventional one.