An electrical current detection device is provided with a shunt resistor that includes a first conducting part, a second conducting part, a center conducting part disposed between the first conducting part and the second conducting part, a first resistor disposed between the first conducting part and the center conducting part, and a second resistor disposed between the second conducting part and the center conducting part, the second resistor having a greater resistance value than the first resistor. The electrical current detection device is further provided with: a signal output unit; an estimation unit that estimates a first estimated current value from the first detection signal, and estimates a second estimated current value from the second detection signal; and an determination unit that compares the first estimated current value and the second estimated current value, and determines the abnormality of the shunt resistor.
ELECTRICAL CURRENT DETECTION DEVICE EQUIPPED WITH SHUNT RESISTOR, AND POWER SUPPLY DEVICE
30.03.2017
Patent
Elektronische Ressource
Englisch
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