| 基于C8051F020 的双路频率可设定PWM 信号实现 |
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| 引用本文： | 刘开绪,崔峰,张宏伟,成宝芝.基于C8051F020 的双路频率可设定PWM 信号实现[J].兵工自动化,2014,33(7):52-54. |
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| 作者姓名： | 刘开绪 崔峰 张宏伟 成宝芝 |
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| 作者单位： | 大庆师范学院电气信息工程学院,黑龙江 大庆,163712;大庆师范学院电气信息工程学院,黑龙江 大庆,163712;大庆师范学院电气信息工程学院,黑龙江 大庆,163712;大庆师范学院电气信息工程学院,黑龙江 大庆,163712 |
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| 基金项目： | 大庆师范学院自然科学基金（11ZRl4） |
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| 摘 要： | 针对全桥电源变换控制电路,编程设定自适应PWM信号难度大、灵活性差,提出一种基于C8051F020的双路频率可设定PWM信号实现方法。利用C8051F020单片机的多通道12位ADC转换器对各通道输入信号进行转换和比较,把ADC0各个通道转换的结果一次性成批次地送给可编程计数器阵列PCA0,利用PCA0的PWM辅助功能完成信号处理。实验验证了所设计的双路频率可设定受控PWM信号参数可设定。实验结果表明,该设计能够满足特定频率范围内PWM的自适应调节。
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| 关 键 词： | PWM PCA SOC 占空比 |
| 收稿时间： | 2014/7/28 0:00:00 |
Realization of Dual-Channel Set PWM Signal Frequency Based on C8051F020 |
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| Liu Kaixu,Cui Feng,Zhang Hongwei,Cheng Baozhi.Realization of Dual-Channel Set PWM Signal Frequency Based on C8051F020[J].Ordnance Industry Automation,2014,33(7):52-54. |
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| Authors: | Liu Kaixu Cui Feng Zhang Hongwei Cheng Baozhi |
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| Affiliation: | (Department of Electricity ＆ Information Engineering, Daqing Normal University, Daqing 163712, China) |
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| Abstract: | Full bridge power conversion control circuit programmed adaptive PWM signal is difficult, inflexible, based on C8051F020 dual frequency, proposed a method that set PWM signal can be realized. Use C8051F020 SCM multi-channel 12-bit ADC converter for each channel input signal conversion and comparison, the results for each channel ADC0 converse into a batch to give a one-time programmable counter array PCA0. Circuit uses PWM auxiliary function for PCA0 complete signal processing. Experiments designed a dual frequency PWM signal can be controlled by setting the parameter can be set. Experimental results show that the design can meet adaptive PWM within a specific frequency range. |
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| Keywords: | PWM PCA SOC duty cycle |
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