| 基于电阻平衡条件的同相求和运算电路设计 |
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| 引用本文： | 马敬敏.基于电阻平衡条件的同相求和运算电路设计[J].辽宁师范大学学报(自然科学版),2011,34(1). |
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| 作者姓名： | 马敬敏 |
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| 作者单位： | 渤海大学,物理系,辽宁,锦州121000 |
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| 基金项目： | 辽宁省高等教育教学改革A类研究项目 |
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| 摘 要： | 从运放输入端电阻平衡条件出发,分析了一些文献给出的一般形式同相求和运算电路的运算关系式及各输入信号比例系数之和与平衡电阻、反馈电阻的关系,目的是探索同相求和运算电路运算关系的简化表达形式及电路的简化形式.结论是在输入端电阻平衡时,各输入信号比例系数之和在大于1、小于1及等于1情况下,同相求和运算电路还可简化.所述方法的创新点是将运放输入端电阻的平衡条件转化为各输入信号比例系数之和的关系,从而可直观确定简化电路形式,解决了"同相求和电路的应用不如反相求和电路应用广泛"的问题.
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| 关 键 词： | 同相求和运算电路 比例系数 平衡条件 |
The methods of designing noninverting input and operational circuits based on resistance balance condition |
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| MA Jing-min.The methods of designing noninverting input and operational circuits based on resistance balance condition[J].Journal of Liaoning Normal University(Natural Science Edition),2011,34(1). |
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| Authors: | MA Jing-min |
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| Institution: | MA Jing-min(Department of Physics,Bohai University,Jinzhou 121000,China) |
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| Abstract: | Starting from inputing balance resistance in integrated operation amplifier and analysing the common operational form of noninverting input summing circuits and the relationship between input signal scaling coefficient and balance resistance,feedback resistance in some essays,the aim is to know the simplified form of the relationship between noninverting input summing and operational circuits.Conlusion: when the input resistance is balance the sum of every input siganl scaling coefficient is greater than 1.... |
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| Keywords: | noninverting summing operational circuits scaling coefficient balance condition |
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