This paper introduces the application of the 32-bit high-performance microcontroller in the design of an intelligent low-voltage circuit breaker controller based on Cotex-M3 kernel. The intelligent controller hardware adopts signal transformation, waveform transformation methods;software uses the differential method. Specifically it indirectly calculates the current changing rate with the signals after sampling transformation of the input capture mode from the PWM integrated in microcontroller, greatly reducing the overload, the response time o...
