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DCR Current Sensing. DCR Current Sensing can be used to remove the additional conduction loss introduced by current sense resistor. The voltage across DCR can be extracted using a R-C network. Matching R1C time constant with L/DCR time constant. Then
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DCR Current Sensing • DCR Current Sensing can be used to remove the additional conduction loss introduced by current sense resistor. • The voltage across DCR can be extracted using a R-C network. Matching R1C time constant with L/DCR time constant Then Equivalent Current Sense Resistance will be
DCR Current Sensing (DCR is higher than desired current sense resistance) Matching the time constants Equivalent Current Sense Resistance