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Practical feedback loop analysis for boost converter

Posted: 28 Oct 2014 ?? ?Print Version ?Bookmark and Share

Keywords:boost converter? compensator? continuous conduction mode? loop compensation?

The boost converter offers a new set of complications in analysis and characteristics and can be a challenging converter to stabilise when operating with voltage-mode control. A Type III compensator is needed to design the loop for a voltage-mode boost converter operating in continuous conduction mode (CCM). Right-half-plane (RHP) zero has additional constraints on the design of loop compensation and crossover frequency, but they can be managed well as long as the RHP zero frequency is understood and placed properly by appropriate power stage component selection. This application report describes how to select the placement of poles and zeros with several rules.

View the PDF document for more information.

Originally published by Texas Instruments Inc. at www.ti.com as "Practical Feedback Loop Analysis for Voltage-Mode Boost Converter".





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