{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11973448","patent":{"patent_number":"US-11973448","title":"Drive device for rotary electric machine","assignee":null,"inventors":[],"filing_date":"2021-03-25T00:00:00.000Z","publication_date":"2024-04-30T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":5,"abstract":"A drive device for a rotary electric machine includes a first inverter that has high-potential side and low-potential side switching elements corresponding to phases of the rotary electric machine and is connected to a DC power supply, a second inverter that has high-potential side and low-potential side switching elements corresponding to the phases and is connected to the first inverter via a connection line, and a controller that controls the first and second inverters so that if a percentage modulation expressed by a fundamental wave component amplitude of a phase winding voltage and a DC voltage is a threshold value or more, percentage modulations of output phase voltages of the first and second inverters are more than 1, and so that a phase difference between a phase of the output phase voltage of the first inverter section and that of the second inverter section changes depending on the percentage modulation."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Drive device for rotary electric machine","description":"A drive device for a rotary electric machine includes a first inverter that has high-potential side and low-potential side switching elements corresponding to phases of the rotary electric machine and","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11973448","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-11973448","citation_suggestion":"Patentable. \"Drive device for rotary electric machine\" (US-11973448). https://patentable.app/patents/US-11973448","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11973448","json":"https://patentable.app/api/llm-context/US-11973448","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:44:01.667Z"}