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ADM1176-1ARMZ-R7 Folha de dados(PDF) 23 Page - Analog Devices |
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ADM1176-1ARMZ-R7 Folha de dados(HTML) 23 Page - Analog Devices |
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23 / 24 page ![]() ADM1176 Rev. 0 | Page 23 of 24 KELVIN SENSE RESISTOR CONNECTION When using a low value sense resistor for high current measurement, the problem of parasitic series resistance may arise. The lead resistance can be a substantial fraction of the rated resistance, making the total resistance a function of lead length. This problem can be avoided by using a Kelvin sense connection. This type of connection separates the current path through the resistor and the voltage drop across the resistor. Figure 46 shows the correct way to connect the sense resistor between the VCC pin and the SENSE pin of the ADM1176. SENSE RESISTOR KELVIN SENSE TRACES VCC SENSE ADM1176 CURRENT FLOW FROM SUPPLY CURRENT FLOW TO LOAD Figure 46. Kelvin Sense Connections |
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