{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9660521","patent":{"patent_number":"US-9660521","title":"Power conversion circuit","assignee":null,"inventors":[],"filing_date":"2015-04-22T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["H02M","B60W","H02M","H02M"],"num_claims":4,"abstract":"A power conversion circuit includes first to fourth switching elements connected in series between ground and high voltage electrical paths, a first reactor, a main battery, a second reactor, a sub battery, a high voltage sensor for detecting a high voltage VH between the ground and high voltage electrical paths, and a controller. Upon issuance of an instruction for turning off all of the first to fourth switching elements, the controller determines that the third switching element is experiencing an ON failure when the high voltage VH is equal to the sum of a battery voltage VB1 of the main battery and a battery voltage VB2 of the sub battery, to thereby allow electrical power to be transferred between the batteries and a load even in the event of occurrence of the ON failure in the switching element."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power conversion circuit","description":"A power conversion circuit includes first to fourth switching elements connected in series between ground and high voltage electrical paths, a first reactor, a main battery, a second reactor, a sub ba","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9660521","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-9660521","citation_suggestion":"Patentable. \"Power conversion circuit\" (US-9660521). https://patentable.app/patents/US-9660521","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9660521","json":"https://patentable.app/api/llm-context/US-9660521","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:34:20.252Z"}