Power Integrity Aware Approach to Dynamic Analysis of Buck Converters
In this paper, a novel approach is presented for an integrated analysis of power distribution networks, including dc-dc converters, power transmission lines (PTLs), and multiple loads. The effect of power interconnects is investigated on the dynamic characteristics of a pulsewidth-modulated buck converter. A closed-form relation is developed for control-to-output transfer function including the power interconnects as a transmission line model. The effect of PTLs is demonstrated on converter's open-loop transfer function and its stability. For analysis of distributed power loads on printed circuit board PTLs, a model is developed based on cascaded matrix representation of interconnects. The model is successfully tested against planar electromagnetic simulation results.
|Keywords||Integrated circuit interconnections, Integrated circuit modeling, Load modeling, Power distribution networks, power integrity, Power system dynamics, power transmission line (PTL), Pulse width modulation, pulsewidth-modulated (PWM) buck converter, small-signal analysis., Switches, Transfer functions|
|Journal||IEEE Transactions on Components, Packaging and Manufacturing Technology|
Erdin, I. (Ihsan), Achar, R, & Erdin, K. (Kaya). (2017). Power Integrity Aware Approach to Dynamic Analysis of Buck Converters. IEEE Transactions on Components, Packaging and Manufacturing Technology. doi:10.1109/TCPMT.2017.2741967