关键词: 电动自行车控制器, 32位MCU, 失效分析

Abstract: At present, 32 bit MCU is widely used in various fields. Because of the powerful computing capabilities, it almost occupies more than 70% of the main control chips in electric bicycle controllers. Aiming at the failure phenomenon of electric bicycle controller product, from the terminal application scenario, combined with the principle of the customer controller, the failure circuit is analyzed. The reasons for the failure of the controller and the failure mechanism of the MCU are confirmed and the recurrence comparison is carried out. The defects in the design of the electric bicycle controller are improved, which effectively improves the reliability and yield of the electric bicycle controller.

Key words: electricbicyclecontroller, 32bitMCU, failureanalysis