{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9590540","patent":{"patent_number":"US-9590540","title":"Hybrid pulse width modulation method for variable speed drive","assignee":null,"inventors":[],"filing_date":"2014-01-28T00:00:00.000Z","publication_date":"2017-03-07T00:00:00.000Z","cpc_codes":["H02M"],"num_claims":18,"abstract":"A system or method controlling a variable speed drive based on PWM techniques, wherein a first PWM method is used when the input current is less than a predetermined threshold value, for higher efficiency and lower total harmonic distortion (THD); and a second PWM method comprising a discontinuous modulation signal is used when the input current is greater than the predetermined threshold value for higher efficiency. By doing so, the maximum efficiency of VSD within the whole operation range can be achieved."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Hybrid pulse width modulation method for variable speed drive","description":"A system or method controlling a variable speed drive based on PWM techniques, wherein a first PWM method is used when the input current is less than a predetermined threshold value, for higher effici","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9590540","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-9590540","citation_suggestion":"Patentable. \"Hybrid pulse width modulation method for variable speed drive\" (US-9590540). https://patentable.app/patents/US-9590540","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9590540","json":"https://patentable.app/api/llm-context/US-9590540","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:04:59.642Z"}