Sub-resolution motor driving device based on quadrature encoder and control method thereof

• Main Authors: PANG JIAN, TIAN QIANG, HE PEISHUANG
• Format: Patent
• Language: Chinese; English
• Published: 04.07.2023
• Subjects: CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION

The invention provides a subresolution motor driving device based on a quadrature encoder and a control method of the subresolution motor driving device. The subresolution motor driving device comprises the quadrature encoder, a motor driving controller, a first timing counter and a second timing counter, the input end of the quadrature encoder is connected with an external hand wheel, the output end is connected with the input end of the motor driving controller, and the output end of the motor driving controller is electrically connected with the servo motor; the quadrature encoder is used for converting a rotation signal generated by rotation of an external hand wheel into a quadrature code, and the motor driving controller generates a PWM (Pulse Width Modulation) signal according to the quadrature code output by the quadrature encoder to control the rotation of the servo motor; the first timing counter and the second timing counter are used for recording the number of orthogonally coded pulses at differen