{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11271469","patent":{"patent_number":"US-11271469","title":"Device and method for suppressing harmonic distortions at the output of variable frequency drive","assignee":null,"inventors":[],"filing_date":"2019-12-27T00:00:00.000Z","publication_date":"2022-03-08T00:00:00.000Z","cpc_codes":["H02M","H02J","H02M"],"num_claims":9,"abstract":"A device for suppressing harmonic distortions at the output of variable frequency drive (VFD) comprising at least one passive harmonic filter (PHF) which has a set of storage elements and a set of inductive elements. The set of inductive elements are mounted on a magnetic core. The PHF comprising at least two lines connected in parallel (parallel lines) with similar sets of elements. The described technical solution expands the possibility of operating the VFD/VSD with different supply voltage frequencies, and maintains the THD/TDD values within 5% regardless of active power fluctuations."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Device and method for suppressing harmonic distortions at the output of variable frequency drive","description":"A device for suppressing harmonic distortions at the output of variable frequency drive (VFD) comprising at least one passive harmonic filter (PHF) which has a set of storage elements and a set of ind","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11271469","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-11271469","citation_suggestion":"Patentable. \"Device and method for suppressing harmonic distortions at the output of variable frequency drive\" (US-11271469). https://patentable.app/patents/US-11271469","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11271469","json":"https://patentable.app/api/llm-context/US-11271469","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:43:43.901Z"}