Measuring shunt

A measuring shunt, comprising:

• a resistance element including a first main contact, a second main contact, and a middle section extending between the first and second main contacts for conducting an electric current between the first and second main contacts through the middle section, said middle section having a U-shaped configuration defining two limbs and a central section extending between the two limbs;
• a magnetic core extending in an annular manner around the middle section of the resistance element, said magnetic core having a first side facing the first main contact and a second side facing the second main contact;
• and
• a first auxiliary contact and a second auxiliary contact for tapping a measurement voltage which drops between a first measurement point and a second measurement point of the resistance element, the first and second measurement points being located on different ones of the first and second sides of the magnetic core, with the second measurement point being located on the second side of the magnetic core, said second auxiliary contact extending from the second measurement point through the magnetic core to the first side of the magnetic core, said first and second auxiliary contacts being generated by two slots in the resistance element, with each of the slots extending through a subsection of the central section and one of the two limbs of the middle section to an end of the resistance element in a region of the first main contact.

A circuit arrangement, comprising:

• at least two half-bridges connected in parallel, each of the at least two half-bridges having bridge arms;
• an electronic switch arranged in each of the bridge arms of the at least two half-bridges;
• and
• a measuring shunt arranged in the bridge arms of the at least two half-bridges, said measuring shunt comprising a resistance element including a first rain contact, a second main contact, and a middle section extending between the first and second main contacts for conducting an electric current between the first and second main contacts through the middle section, said middle section having a U-shaped configuration defining two limbs and a central section extending between the two limbs, a magnetic core extending in an annular manner around the middle section of the resistance element, said magnetic core having a first side facing the first main contact and a second side facing the second main contact, and a first auxiliary contact and a second auxiliary contact for tapping a measurement voltage which drops between a first measurement point and a second measurement point of the resistance element, the first and second measurement points being located on different ones of the first and second sides of the magnetic core, with the second measurement point being located on the second side of the magnetic core, said second auxiliary contact extending from the second measurement point through the magnetic core to the first side of the magnetic core, said first and second auxiliary contacts being generated by two slots in the resistance element, with each of the slots extending through a subsection of the central section and one of the two limbs of the middle section to an end of the resistance element in a region of the first main contact.

A power converter, comprising a circuit arrangement, said circuit arrangement comprising at least two half-bridges connected in parallel, each of the at least two half-bridges having bridge arms, an electronic switch arranged in each of the bridge arms of the at least two half-bridges, and a measuring shunt arranged in the bridge arms of the at least two half-bridges, said measuring shunt comprising a resistance element including a first main contact, a second main contact, and a middle section extending between the first and second main contacts for conducting an electric current between the first and second main contacts through the middle section, said middle section having a U-shaped configuration defining two limbs and a central section extending between the two limbs, a magnetic core extending in an annular manner around the middle section of the resistance element, said magnetic core having a first side facing the first main contact and a second side facing the second main contact, and a first auxiliary contact and a second auxiliary contact for tapping a measurement voltage which drops between a first measurement point and a second measurement point of the resistance element, the first and second measurement points being located on different ones of the first and second sides of the magnetic core, with the second measurement point being located on the second side of the magnetic core, said second auxiliary contact extending from the second measurement point through the magnetic core to the first side of the magnetic core, said first and second auxiliary contacts being generated by two slots in the resistance element, with each of the slots extending through a subsection of the central section and one of the two limbs of the middle section to an end of the resistance element in a region of the first main contact.