Abstract: A control system of multi-shaft servo motor comprises a position loop module (400) for receiving a position loop given value and a position feedback value of respective shelves and figuring out a velocity loop given value; a velocity loop module (500) for receiving the velocity loop given value and a velocity feedback value of respective shelves and figuring out a current loop given value; a current loop module (200) for receiving the current loop given value and a current feedback value of respective shelves and outputting a current loop output value; a PWM signal generation module (300) for receiving the current loop output value from the current loop module (200) and generating a PWM signal for controlling respective shelves of the servo motor; and a multi-shaft time sequence control module (700).

Abstract: A hall rotary transformer comprises a rotary transformer stator (1), linear Hall components (3), a PCB (4) and a permanent magnet magnetic ring (5). A ring shape soft iron core (2) is installed on the PCB (4). Plural grooves (8) are uniformly distributed inside the peripheral surface of the ring shape soft iron core (2) and have the same number as the linear Hall components (3). Every linear Hall component (3) is installed in its corresponding groove (8) and soldered on the PCB (4). The magnetic sensitive surface of each linear Hall component (3) is aligned with the magnetic pole surface of the permanent magnet magnetic ring (5) each other. A Hall rotation angle encoder is made of the Hall rotary transformer.

Abstract: A hall rotary transformer comprises a rotary transformer stator (1), linear Hall components (3), a PCB (4) and a permanent magnet magnetic ring (5). A ring shape soft iron core (2) is installed on the PCB (4). Plural grooves (8) are uniformly distributed inside the peripheral surface of the ring shape soft iron core (2) and have the same number as the linear Hall components (3). Every linear Hall component (3) is installed in its corresponding groove (8) and soldered on the PCB (4). The magnetic sensitive surface of each linear Hall component (3) is aligned with the magnetic pole surface of the permanent magnet magnetic ring (5) each other. A Hall rotation angle encoder is made of the Hall rotary transformer.

Abstract: The present invention relates to a control system of multi-shaft servo motor, wherein, comprises a position loop module (400) for receiving a position loop given value and a position feedback value of respective shelves and figuring out a velocity loop given value; a velocity loop module (500) for receiving the velocity loop given value and a velocity feedback value of respective shelves and figuring out a current loop given value; a current loop module (200) for receiving the current loop given value and a current feedback value of respective shelves and outputting a current loop output value; a PWM signal generation module (300) for receiving the current loop output value from the current loop module (200) and generating a PWM signal for controlling respective shelves of the servo motor; and a multi-shaft time sequence control module (700) for controlling the position loop module (400), the velocity loop module (500), the current loop module (200) and the PWM signal generation module to receive and process