论文部分内容阅读
ELDO是一个新的电路模拟程序,它具有两个主要特点:——对有待计算的节点排序和预测,不需要额外的计算时间,节点预测过程实现了对松弛技术的改进。——排除了模型和宏模型的微商计算,其两个主要的优点是:1.不必进行雅可比以及逆的计算,用新的“控制固定点”的算法代替Newton-Raphson方法。2.用户可以自由定义自己的模型或宏模型,如NMOS或PMOS晶体管,运算放大器,开关电容等。本文提出一个方法,它能相当有效地利用CPU时间,改进计算精度和增加灵活性,即从一个模型到另一个模型提供了方便的通路。ELDO是用PASCAL语言编写的移序,有2500条语句,在VAX/VMS780计算机上运行。
ELDO is a new circuit simulation program that has two main features: - Sorting and predicting the nodes to be calculated without additional computation time, and the node prediction process enables the relaxation technique to be improved. The two main advantages of excluding the model and macro models of the derivative are: 1. Eliminate the Jacobian and inverse computations, replacing the Newton-Raphson method with a new “control fixed-point” algorithm. 2. Users are free to define their own model or macro model, such as NMOS or PMOS transistors, operational amplifiers, switching capacitors. This paper presents a method that can make efficient use of CPU time, improve computational accuracy and increase flexibility, providing a convenient path from one model to another. ELDO is a program written in PASCAL with 2,500 statements running on a VAX / VMS780 computer.