Accuracy-Enhanced Ramp-Generation Design for D-CAP3 Modulation (Rev. A)

Texas Instruments

Published Date: 04/25/2016

Description

D-CAP and D-CAP2 control schemes have been widely used in TI Switched-Mode DC-DC converters due to their fast transient response and no off-chip compensation. Offset generated by current sense ramp adds an error to VFB and Vout and hence reduces DC accuracy. This paper introduces a new D-CAP3 control scheme which greatly improves DC accuracy of the converter while maintaining the same fast transie

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