{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11482920","patent":{"patent_number":"US-11482920","title":"Single stage, two level pulse width modulation strategies for active harmonic filters","assignee":null,"inventors":[],"filing_date":"2019-10-30T00:00:00.000Z","publication_date":"2022-10-25T00:00:00.000Z","cpc_codes":["H02M","H02M"],"num_claims":13,"abstract":"A system (110) and method of controlling a three-phase active harmonic filter (160) with a three-phase converter having inputs for connection to a three-phase AC source (112), the three-phase converter having three phase legs, each phase leg of the three phase legs of the three-phase converter includes a first switching device operably connected to a first power supply rail and a second switching device operably connected to a second supply rail, the three-phase converter operably connected to a controller. The controller is configured to determine an operating characteristic of the AHF and operable to control the first and second switching devices of each phase leg of the three phase legs with a first PWM strategy, compare the operational characteristic of the AHF to a selected threshold, and employ a second PWM strategy if the operational characteristic exceeds a selected threshold."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Single stage, two level pulse width modulation strategies for active harmonic filters","description":"A system (110) and method of controlling a three-phase active harmonic filter (160) with a three-phase converter having inputs for connection to a three-phase AC source (112), the three-phase converte","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11482920","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-11482920","citation_suggestion":"Patentable. \"Single stage, two level pulse width modulation strategies for active harmonic filters\" (US-11482920). https://patentable.app/patents/US-11482920","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11482920","json":"https://patentable.app/api/llm-context/US-11482920","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T07:59:51.635Z"}