Minimum Resolution Adjustment by PIC16F877 Pulse Width Controlling

Fu Yang; Wen Ming Zhang; Wan Cai Jiao

doi:10.4028/www.scientific.net/AMM.644-650.230

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 644-650Minimum Resolution Adjustment by PIC16F877 Pulse...

Minimum Resolution Adjustment by PIC16F877 Pulse Width Controlling

Abstract:

A method of minimum resolution adjustment based on the control of PWM is proposed. In the first part, the principle of PIC16F877 is analyzed and the signal period and the pulse width is calculated. the Two buttons on PIC16F877 are used to precise control the increment and decrement of output of PWM. The procedure of control of PWM is introduced at the last part. Using the method, the speed of rotation of the direct current motor can be precise controlled.

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Periodical:

Applied Mechanics and Materials (Volumes 644-650)

Pages:

230-233

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.644-650.230

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Online since:

September 2014

Authors:

Fu Yang*, Wen Ming Zhang, Wan Cai Jiao

Keywords:

Pulse Width, Resolution, Signal Period

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* - Corresponding Author

References

[1] Hongjuan Zhang, Wei Li. DC-motor PWM Speed Control System Based on PIC [J]. Mechanical and Electrical Engineering, 2005, 22(2). In Chinese.

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[2] Rongzheng Li, Qizhong Liu, Xuejun Chen. Principle and Application of PIC MCU [M]. Second Edition. Beijing: Beihang University Press, 2005. In Chinese.

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