Title:
PWM GENERATION METHOD AND CIRCUIT, DRIVER CONTROL METHOD, ELECTRIC MOTOR AND ELECTRIC MOTOR SYSTEM
Document Type and Number:
WIPO Patent Application WO/2024/066470
Kind Code:
A1
Abstract:
Disclosed in the present invention are a PWM generation method and circuit, a driver control method, an electric motor and an electric motor system. The PWM generation method comprises: on the basis of the polarity of a command current of each phase of an electric motor, obtaining a command signal used for representing the polarity of the command current; on the basis of the polarity of the difference between the command current of each phase of the electric motor and an actual current, obtaining a comparison signal used for representing the polarity of the difference between the command current of each phase of the electric motor and the actual current; and obtaining an upper tube driving signal and a lower tube driving signal on the basis of the command signal and the comparison signal. According to the PWM generation method in the present invention, a corresponding command signal is obtained on the basis of the polarity of a command current of each phase of an electric motor, a corresponding comparison signal is obtained on the basis of the polarity of the difference between the command current of each phase of the electric motor and an actual current, and a PWM signal consisting of an upper tube driving signal and a lower tube driving signal is rapidly obtained on the basis of the command signal and the comparison signal, thereby increasing switching control speeds of switching tubes of a driver.
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Inventors:
XI LEFEI (CN)
YUAN ZAISONG (CN)
YAO DAN (CN)
YUAN ZAISONG (CN)
YAO DAN (CN)
Application Number:
PCT/CN2023/099339
Publication Date:
April 04, 2024
Filing Date:
June 09, 2023
Export Citation:
Assignee:
SHANGHAI LYNUC CNC TECH CO LTD (CN)
International Classes:
H02M1/088; H02P27/08
Attorney, Agent or Firm:
SUZHOU 3IN INTELLECTUAL PROPERTY AGENT CO., LTD. (CN)
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