Design Considerations for Small Signal Modeling of DC-DC Converters Using Inductor DCR Current Sensing Under Time Constants Mismatch Conditions

Abstract

This paper compares advantages and disadvantages of several commonly used current sensing methods such as dedicated sense resistor sensing, MOSFET Rds(on) current sensing, and inductor DC resistance (DCR) current sensing. Among these current sense methods, inductor DCR current sense that shows more advantages over other current sensing methods is chosen for… (More)

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