Patent ID: 11899043
Assignee: SUMITOMO ELECTRIC INDUSTRIES, LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A current detection apparatus for detecting current flowing through a power supply path of a power supply control apparatus,
wherein the power supply path includes a flat plate-shaped first conductor, second conductor, and third conductor that are arranged on a substrate,
the current detection apparatus further comprises:
a first semiconductor switching element and a second semiconductor switching element that are connected in parallel between the first conductor and the third conductor arranged on the substrate,
a first shunt resistor and a second shunt resistor that are connected in parallel between the first conductor and the second conductor arranged on the substrate;
a current detection circuit that is arranged on the substrate and is configured to detect current flowing through the first shunt resistor; and
an arithmetic circuit arranged on the substrate, and

the arithmetic circuit calculates current flowing through the power supply path based on a correlation between current flowing from the first conductor to the second conductor via both the first shunt resistor and the second shunt resistor and current flowing through the first shunt resistor, and the current detected by the current detection circuit.