Design of Controlled 16-Bit PWM Signal Based on C8051F020

Abstract:

C8051F020 MCU with rich external resources on-chip, in the electromagnetic stress test excitation signal or a power conversion circuit design, it can provide comprehensive control PWM signal and signal system, simplify the circuit hardware. This paper uses the voltage feedback signal through the C8051F020 single chip ADC0 conversion, and converts the result to send PCA0 module implements the 16-bit PWM signal output. At the same time generating a PWM signal, use ADC0 Window Detector achieved over the range of the input value alarm and protection, also, because the ADC0 is 12-bit, so, in the program for PCA0 values were trimmed, PWM signal output frequency can be set have been achieved and verified by experiment design conclusions.

• Periodical: Applied Mechanics and Materials (Volumes 530-531)
• Pages: 1089-1092
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.530-531.1089
• Online since: February 2014
• Authors: Kai Xu Liu, Yu Bo Duan*
• Keywords: C8051, Duty Cycle, PCA, PWM, SoC

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