US Patent No. 9,543,088

CIRCUIT ARRANGEMENT FOR SUPPRESSING AN ARC OCCURRING OVER A CONTACT GAP OF A SWITCHING MEMBER


Patent No. 9,543,088
Issue Date January 10, 2017
Title Circuit Arrangement For Suppressing An Arc Occurring Over A Contact Gap Of A Switching Member
Inventorship Christopher Merz, Kassel (DE)
Markus Hopf, Espenau (DE)
Assignee SMA SOLAR TECHNOLOGY AG, Niestetal (DE)

Claim of US Patent No. 9,543,088

1. A circuit arrangement for suppressing an arc occurring during a switching process, comprising:
a current bypass path comprising a positive temperature coefficient (PTC) resistor and a fuse connected together in series;
a switch connected in parallel with the current bypass path; and
a circuit unit configured to limit a voltage drop across the fuse when the fuse has tripped, wherein the circuit unit is arranged
in parallel with the fuse.