{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11296625","patent":{"patent_number":"US-11296625","title":"Control device and control method for synchronous electric motor","assignee":null,"inventors":[],"filing_date":"2018-05-14T00:00:00.000Z","publication_date":"2022-04-05T00:00:00.000Z","cpc_codes":["H02M","H02M"],"num_claims":6,"abstract":"A control device 1 for a synchronous electric motor that switches a drive control of the synchronous electric motor to a PWM drive control and a rectangular wave drive control includes a PWM signal generator 14 configured to generate a PWM signal, a rectangular wave signal generator 22 configured to generate a rectangular wave signal, a rotation speed detector 40 configured to detect a rotation speed of the motor 2, a signal switching determination part 50 configured to determine, according to at least the rotation speed, whether the PWM signal or the rectangular wave signal is used as a control signal when controlling the drive of the motor 2, and a drive controller 30 configured to control the drive of the motor 2 using a signal determined by the signal switching determination part 50 to be used as the control signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Control device and control method for synchronous electric motor","description":"A control device 1 for a synchronous electric motor that switches a drive control of the synchronous electric motor to a PWM drive control and a rectangular wave drive control includes a PWM signal ge","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11296625","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-11296625","citation_suggestion":"Patentable. \"Control device and control method for synchronous electric motor\" (US-11296625). https://patentable.app/patents/US-11296625","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11296625","json":"https://patentable.app/api/llm-context/US-11296625","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T13:28:31.853Z"}