4results about How to "Short trace" patented technology

The embodiment of the present application discloses a packaging module and an electronic device, in which the first side and the second side of the PCB in the packaging module are respectively covered with a plastic layer, the conductive pins are electrically connected to the PCB, the conductive pins are arranged in the plastic layer along the stacking direction of the PCB and the plastic layer, and the conductive pins are partially exposed on the outer surface of the plastic layer. When the packaging module interacts electrically with other components, the PCB outputs or inputs electricity through the conductive pins. Therefore, there is no need to reserve through holes on the packaging side of the packaging module, the packaging module can be arranged at a position close to the chip, and the wiring between the packaging module and the chip is short. In addition, the size of the electronic device is reduced, and the power distribution loss of the electronic device is reduced.

The present invention provides a method for balancing timing, providing a design layout, the design layout includes multiple design modules, each design module includes multiple ports; defining the design modules that need to be timing balanced; formulating design rules for timing balance, including placing the defined design modules relatively parallel at a set distance, so that when the ports between the defined design modules are connected, the bus length of the connection is the shortest; resetting the positions of multiple design modules according to the design rules, and connecting the ports between the design modules. The method of the present invention finds out the modules related to the address and data, places the units related to the timing balance close to each other, ensures that the bus connection is balanced and the routing is short, and in the redesigned layout, the data register corresponds to the memory port, and the bus connection is balanced and short.

The invention discloses a voltage conversion device and a power supply system. The device comprises at least three-phase first voltage conversion units; each phase of first voltage conversion unit corresponds to a first bus capacitor and a second bus capacitor; a first end of the first voltage conversion unit is connected with the first bus, a second end of the first voltage conversion unit is connected with the second bus, and a third end of the first voltage conversion unit is an input end or an output end of the first voltage conversion unit; the first bus capacitor and the second bus capacitor are connected in series between the first bus and the second bus, the first bus capacitor and the second bus capacitor are connected in parallel with the first voltage conversion unit after being connected in series, and the first voltage conversion unit is used for conversion between direct current voltage and alternating current voltage. According to the technical scheme, the reliability of the three-level topological structure is improved.

The application discloses a power board, a motor driver and a brushless direct current motor driving system, and relates to the technical field of motor drivers, and aims at solving the problem that the motor driver is large in size and weight and cannot meet the requirements of the fields of aviation and spaceflight. The power board comprises a negative electrode connecting terminal, a three-phase inverter assembly and a current sensor assembly which are uniformly surrounded by the negative electrode connecting terminal. The motor driver comprises the power board provided in the technical scheme. The power board, the motor driver and the brushless direct current motor driving system are used for driving a brushless direct current motor.