{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9755555","patent":{"patent_number":"US-9755555","title":"Drive circuit for a permanent magnet motor","assignee":null,"inventors":[],"filing_date":"2015-08-10T00:00:00.000Z","publication_date":"2017-09-05T00:00:00.000Z","cpc_codes":["G01D"],"num_claims":20,"abstract":"A drive circuit for an electric motor connected in series with an AC power source between a first node and a second node. The drive circuit includes a controllable bidirectional AC switch, an AC-DC conversion circuit connected in parallel with the controllable bidirectional AC switch between the first node and the second node, a position sensor configured to detect a position of a rotor of the motor, and a switch control circuit configured to control the controllable bidirectional AC switch to be conductive or non-conductive in a predetermined way, based on the position of the rotor and a polarity of the AC power source."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Drive circuit for a permanent magnet motor","description":"A drive circuit for an electric motor connected in series with an AC power source between a first node and a second node. The drive circuit includes a controllable bidirectional AC switch, an AC-DC co","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9755555","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-9755555","citation_suggestion":"Patentable. \"Drive circuit for a permanent magnet motor\" (US-9755555). https://patentable.app/patents/US-9755555","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9755555","json":"https://patentable.app/api/llm-context/US-9755555","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:51:24.933Z"}