Small signal AC analysis of controller circuits with distributed PCB effects
In this paper, the ac small-signal relations of commonly used DC-DC controllers such as buck, boost and buck-boost are extended to include distributed PCB effects. The critical parameters of these controllers including input-to-output, control-to-output transfer functions and the output impedance impacting power and EMC designs are derived. Using the newly developed broadband model, the effect of PCB parasitics are investigated and compared to the conventional relations.
|Keywords||DC-DC converter, EMI, Power Integrity, Small-Signal Analysis|
|Conference||7th Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2016|
Erdin, I. (Ihsan), & Achar, R. (2016). Small signal AC analysis of controller circuits with distributed PCB effects. Presented at the 7th Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2016. doi:10.1109/APEMC.2016.7522970