The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 05, 2023
Filed:
Mar. 19, 2021
Applicant:
Danfoss Power Electronics A/s, Gråsten, DK;
Inventors:
Assignee:
DANFOSS POWER ELECTRONICS A/S, Gråsten, DK;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 23/14 (2006.01); H02P 27/08 (2006.01); H02H 7/08 (2006.01);
U.S. Cl.
CPC ...
H02H 7/0844 (2013.01); H02P 23/14 (2013.01); H02P 27/085 (2013.01);
Abstract
The present invention relates to a motor controller providing a dual-channel func-tional-safety (FS) safe-torque-off (STO) function when controlling a motor. The motor controller includes an inverter with low-side switches and high-side switches, a low-side gate drive connected to the low-side switches, a high-side gate drive connected to the high-side switches, a first functional-safety safe-torque-off circuit connected to the high-side gate drive and a second functional-safety safe-torque-off circuit connected to the low-side gate drive, and a non-reinforced high-voltage isolation barrier.