NEW MACROMODELS AND MEASUREMENTS FOR THE ANALYSIS OF EMI EFFECTS IN 741 OP-AMP CIRCUITS

被引：31

作者：

GRAFFI, S ^{[1
]}

MASETTI, G ^{[1
]}

GOLZIO, D ^{[1
]}

机构：

[1] AERITALIA,SISTEMI AVIONICI GRP,ELECTROMAGNET COMPATIBIL LAB,TURIN,ITALY

来源：

IEEE TRANSACTIONS ON ELECTROMAGNETIC COMPATIBILITY | 1991年 / 33卷 / 01期

关键词：

D O I：

10.1109/15.68258

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This paper presents the design of two macromodels for the 741 op-amp that proves trustworthy in simulating the consequences of high-frequency, large-amplitude sinusoidal voltages, representing EMI effects, applied to the input of inverting and noninverting amplifiers. One of the macromodels is more elaborate, accounts for power supply voltage change, reproduces correct voltage waveforms at the main nodes of the full circuit, and gives rise to computer time saving factors of 5 or more in comparison with full device-level simulations. The other one is made up with the minimum number of components necessary to estimate the dc output voltage only and shrinks the simulation time by a further factor of about 5. Extensive experimental results were obtained from laboratory measurements and are 'compared with the numerical simulations.

引用

页码：25 / 34

页数：10

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