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:
Dec. 23, 2025
Filed:
Mar. 07, 2023
Siemens Industry, Inc., Alpharetta, GA (US);
Guang Yang, Johns Creek, GA (US);
Siemens Industry, Inc., Alpharetta, GA (US);
Abstract
A DC solid-state circuit breaker is provided with a solid-state aided airgap to ensure successful interruption of current at DC conditions for providing an acceptable fail-safe mechanism in case of main power electronics failure. The DC solid-state circuit breaker comprises a sensing and control circuit configured to realize designed functions. The DC solid-state circuit breaker further comprises a power electronics section that includes a first solid-state switching component for normal operations. The DC solid-state circuit breaker further comprises an air gap section disposed in series with the power electronics section and is configured to perform fail-safe interruption and to provide isolation. The air gap section includes an isolation switch which is connected in series to a fail-safe interruption combination of a current commutation switch and a second solid-state switching component, which are connected in parallel.