{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621028","patent":{"patent_number":"US-9621028","title":"Digitally controlled PFC converter with multiple discontinuous modes","assignee":null,"inventors":[],"filing_date":"2015-04-21T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":20,"abstract":"A PFC circuit having a switching circuit and a control circuit, the control circuit controls an operation mode of the switching circuit based on an input current and a switching frequency of the switching circuit, when the switching circuit works under a continuous current mode, the switching circuit is turned ON when the input current is less than an OFF current reference signal, and when the switching circuit works under a first discontinuous mode or a second discontinuous mode, the switching circuit is turned ON after a turn ON delay time period when the input current is less than the OFF current reference signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Digitally controlled PFC converter with multiple discontinuous modes","description":"A PFC circuit having a switching circuit and a control circuit, the control circuit controls an operation mode of the switching circuit based on an input current and a switching frequency of the switc","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621028","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-9621028","citation_suggestion":"Patentable. \"Digitally controlled PFC converter with multiple discontinuous modes\" (US-9621028). https://patentable.app/patents/US-9621028","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621028","json":"https://patentable.app/api/llm-context/US-9621028","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:39:36.550Z"}