单片DC-DC变换器的多层螺旋电感设计

38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003. Pub Date : 2003-10-12 DOI:10.1109/IAS.2003.1257713

S. Musunuri, Patrick L. Chapman

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引用次数: 18

摘要

本文讨论了采用标准CMOS工艺集成电感器以用于单片DC-DC变换器的思路。提出了一种单层平面螺旋电感的电路模型。描述了计算该模型中每个元素的表达式。通过对这些表达式的性能估计和使用现场求解器的仿真结果进行比较，验证了单层螺旋的电路模型。根据仿真结果，讨论了螺旋形几何参数的选择。此外，利用有效的近似，将单层电路模型推广到多层螺旋电感的模型中。讨论了多层螺旋电感的可行性。确定了单层螺旋电感的较好替代方案。

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Multi-layer spiral inductor design for monolithic DC-DC converters

This paper discusses ideas for integrating inductors using standard CMOS process to be used in monolithic DC-DC converters. A circuit model for single-layer planar, spiral inductor is presented. Expressions to compute each element in this model are described. Estimates of performance from these expressions and from the simulation results using a field solver is compared to validate the circuit model of the single-layer spiral. Selection of the geometric parameters of the spiral, based on the simulation results, is discussed. Further, the single-layer circuit model is extended to model the multilayer spiral inductor by using valid approximations. Feasibility of multi-layer spiral inductor is discussed. Better alternatives for single-layer spiral inductor are identified.

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38th IAS Annual Meeting on Conference Record of the Industry Applications Conference, 2003.

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