Abstract: A high-rate signal connector module is disposed on a circuit board and includes a metal housing, an electrical coupling component, and a carrier, where the metal housing has an accommodating space for accommodating the electrical coupling component and the carrier, at least one electrical protection element is disposed on the carrier, and a part of the metal housing is located between the carrier and the circuit board. By means of configurations of various elements of the present invention, attenuation of high-rate signals and radio wave signals can be effectively reduced.

Abstract: A control system of a three phase induction motor driver and a field weakening control method. The control system includes a driver control module, a field weakening control module, an AC power source, a power loop module, a current sensing module, and an AC motor module. A switching period of an inverter PWM control is used for the AC motor and an inverter control thereof to analyze and obtain the difference value of the sum of effective switching times. The field weakening control module generates an adaptive magnetizing current command in real time to achieve a maximum utilization of a DC link voltage so as to let the AC motor module achieve maximum output torque under different field weakening regions of different speeds when a rated speed is exceeded.

Abstract: A control system of a three phase induction motor driver and a field weakening control method. The control system includes a driver control module, a field weakening control module, an AC power source, a power loop module, a current sensing module, and an AC motor module. A switching period of an inverter PWM control is used for the AC motor and an inverter control thereof to analyze and obtain the difference value of the sum of effective switching times. The field weakening control module generates an adaptive magnetizing current command in real time to achieve a maximum utilization of a DC link voltage so as to let the AC motor module achieve maximum output torque under different field weakening regions of different speeds when a rated speed is exceeded.