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Design of Ladder Based Switched Current Circuits - A Novel Approach

机译:基于阶梯的开关电流电路设计-一种新方法

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摘要

A novel approach for the design of Switched Current (SI) ladder circuits is discussed. Starting from the specifications of the filter in z-domain, continued fraction expansions (CFE) of the transfer function are obtained. Then Signal Flow Graphs (SFG) of each row of the expansion so derived are directly transformed into Switched Current structures (integrators and amplifiers). These SI blocks are connected in ladder form to generate the required SI circuit. Two examples have been used to demonstrate the utility of the approach. The circuits have been designed and simulated using OrCAD PSPICE.
机译:讨论了一种设计开关电流(SI)梯形电路的新颖方法。从z域滤波器的规格开始,可以获得传递函数的连续分数展开(CFE)。然后,将如此获得的扩展的每一行的信号流图(SFG)直接转换为开关电流结构(积分器和放大器)。这些SI模块以梯形形式连接以生成所需的SI电路。已使用两个示例来证明该方法的实用性。电路是使用OrCAD PSPICE设计和仿真的。

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