US 12,244,174 B2
Method to operate parallel bypass thyristors at low load
Jonas Sonsby Mouridsen, Odense V (DK); and Kasper Tellerup, Odense V (DK)
Assigned to SCHNEIDER ELECTRIC IT CORPORATION, Foxboro, MA (US)
Filed by SCHNEIDER ELECTRIC IT CORPORATION, Foxboro, MA (US)
Filed on Jun. 20, 2023, as Appl. No. 18/211,683.
Prior Publication US 2024/0429738 A1, Dec. 26, 2024
Int. Cl. H02J 9/06 (2006.01); H03K 17/13 (2006.01)
CPC H02J 9/068 (2020.01) [H03K 17/136 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A system comprising:
an input configured to be coupled to a power source;
an output configured to be coupled to a load;
a first branch coupled between the input and the output and including a first thyristor having a first threshold voltage;
a second branch coupled between the input and the output and coupled in parallel with the first branch, the second branch including a second thyristor having a second threshold voltage higher than the first threshold voltage; and
at least one controller configured to control the system to selectively generate a biasing voltage across the second thyristor to induce a change in a voltage across the second thyristor from a first voltage to a second voltage, the first voltage being less than the second threshold voltage and the second voltage being greater than the second threshold voltage.