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DCR Current Sensing

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

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  1. 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

  2. DCR Current Sensing (DCR is higher than desired current sense resistance) Matching the time constants Equivalent Current Sense Resistance

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