Patent ID: 7323860

Claim:
A Hall IC type current sensor of a vehicle-mounted power converter comprising: a bus bar which is connected with a power source and supplies electricity to a vehicle-mounted power converter; a Hall IC which measures a magnetic flux which is generated when electricity is supplied to the bus bar, outputs an electric signal in response to the density of the magnetic flux and detects a current supplied to the bus bar; and a control board on which a control circuit which controls the vehicle-mounted power converter in response to an output of the Hall IC is mounted, wherein the current sensor further includes a Hall IC holder which holds the Hall IC on which a lead frame is formed by insert molding and which allows a lead terminal to be connected to the lead frame, and is also fixed to the bus bar or the control board; and a through hole which is formed in the control board and which allows an extension portion of the lead frame to pass therethrough, and the extension portion of the lead frame which passes through the through hole is connected with the control circuit by solder bonding.