{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9766292","patent":{"patent_number":"US-9766292","title":"Abnormality diagnostic device and abnormality diagnostic method for MOSFET switch element","assignee":null,"inventors":[],"filing_date":"2014-06-30T00:00:00.000Z","publication_date":"2017-09-19T00:00:00.000Z","cpc_codes":["H02J","H02J"],"num_claims":4,"abstract":"An abnormality diagnostic for a MOSFET switch element in a rechargeable battery pack for determining a short circuit abnormality (fusion) in a MOSFET switch element that causes a charge current to flow in. An on/off controller turns off a MOSFET causing a charge current to flow into a battery module, a start-of-charge instruction unit transmits to a charger an instruction signal to start a charging operation, and a short circuit abnormality diagnostic unit determines, based on a current sensor output, whether current is flowing through the MOSFET due to the charging operation to diagnose a short circuit abnormality in the MOSFET. After diagnosis of the MOSFET, a diagnosis of a short circuit abnormality in a MOSFET that causes a discharge current to flow out of the battery module is performed, and then a diagnosis of a short circuit abnormality in a charge relay is performed."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Abnormality diagnostic device and abnormality diagnostic method for MOSFET switch element","description":"An abnormality diagnostic for a MOSFET switch element in a rechargeable battery pack for determining a short circuit abnormality (fusion) in a MOSFET switch element that causes a charge current to flo","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9766292","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9766292","citation_suggestion":"Patentable. \"Abnormality diagnostic device and abnormality diagnostic method for MOSFET switch element\" (US-9766292). https://patentable.app/patents/US-9766292","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9766292","json":"https://patentable.app/api/llm-context/US-9766292","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T05:39:37.953Z"}