H桥功率模块控制方法、系统和存储介质
By combining current closed-loop control and SPWM modulation technology with three-dimensional lookup table feedforward and phase synchronization adjustment, the problems of current fluctuation and uneven loss in H-bridge control are solved, thereby improving the dynamic response and test accuracy of the motor drive system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHENZHEN YUANLICHUANG TECH CO LTD
- Filing Date
- 2026-04-01
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional H-bridge control technology results in a large fluctuation range of load current and significant deviation of the effective value of current, which affects the testing accuracy of motor drive system. In addition, the uneven switching losses of IGBTs in the upper and lower bridge arms limit the application value of H-bridge in the field of precision control.
By employing current closed-loop control and SPWM modulation technology, combined with three-dimensional lookup table feedforward and phase synchronization adjustment, the effective value of the feedback current is calculated in real time and PI closed-loop adjustment is performed. Voltage feedforward compensation and center-aligned PWM wave generation strategy are introduced to improve current control accuracy and power transistor utilization.
It significantly improves the dynamic response accuracy and power transistor utilization of the H-bridge drive system, alleviates the problems of current control lag and uneven switching losses, and enhances the testing accuracy and efficiency of the motor drive system.
Smart Images
Figure CN121966223B_ABST