Abstract: A system power supply including an input power supply, a working power supply unit, a plurality of control modules, and a wiring harness is provided. The wiring harness includes a working power supply line and an input power supply line. An input power supply port of each control module is connected to the input power supply line, and a working power supply port is connected to the working power supply line. The input power supply is connected to the input power supply line, and an output of the working power supply unit is connected to the working power supply line. The present invention uses a working power supply line to provide working power supply to a plurality of control modules, eliminating the traditional operation of configuring an independent working power supply for each control module.

Abstract: The invention discloses a power distribution system, including a system power supply, a main control unit, a power line and a number of subsidiary control units. The main control unit comprises a main controller and a main power circuit protection device connected to the main controller. The input end of the main power circuit protection device is connected to the power output end of the system power supply, and the output end of the main power circuit protection device is connected to an end of the power line. Each subsidiary control unit comprises a subsidiary controller and a subsidiary power circuit protection device connected to the subsidiary controller. The input end of the subsidiary power circuit protection device is connected in parallel to the power line, and the output end of the subsidiary power circuit protection device is connected to the electrical device.

Abstract: The present invention provides a high-side current acquisition and safety protection circuit of a power electronic switch, including a power electronic switch for driving a load, a power supply for providing power energy for the power electronic switch, a control module for sensing the current source signal contained in the power electronic switch and converting the sensed current source signal into a control signal for safety protection of the power electronic switch, and an isolated power source that provides working power for the control module, wherein the negative pole of the isolated power source is connected to the positive pole of the power supply. The invention has simple structure, reliable control, and low cost.

Abstract: A vehicle-mounted local network system, comprising a main control unit, a hybrid cable, and several intelligent electrical terminals. The hybrid cable has a built-in power line for power transmission and a signal line for signal transmission; several intelligent electrical terminals are all connected to the hybrid cable, and are connected to the main control unit through the hybrid cable; the vehicle-mounted local network system can quickly connect the main control unit and several intelligent electrical terminals through one integrated hybrid cable, thereby forming a simple, high-performance and low-cost local vehicle-mounted network system.

Abstract: A continuously variable speed power bearing includes a bearing driving inner ring, a bearing driven outer ring, and a movable tooth assembly. A circle of movable tooth grooves are arranged on a periphery of the bearing driving inner ring, the movable tooth assembly is embedded into corresponding movable tooth grooves in a one-to-one mode. The bottoms of the movable tooth grooves are connected to a high-pressure oil inlet. An inner peripheral surface of the bearing driven outer ring is a variable diameter surface, and the variable diameter surface is evenly divided into a plurality of equal parts. Each corresponding equal part has an equal variable diameter and the same direction, and an outer end part of the movable tooth assembly fits the variable diameter surface.

Abstract: A continuously variable speed power bearing includes a bearing driving inner ring, a bearing driven outer ring, and a movable tooth assembly. A circle of movable tooth grooves are arranged on a periphery of the bearing driving inner ring, the movable tooth assembly is embedded into corresponding movable tooth grooves in a one-to-one mode. The bottoms of the movable tooth grooves are connected to a high-pressure oil inlet. An inner peripheral surface of the bearing driven outer ring is a variable diameter surface, and the variable diameter surface is evenly divided into a plurality of equal parts. Each corresponding equal part has an equal variable diameter and the same direction, and an outer end part of the movable tooth assembly fits the variable diameter surface.