{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8541990","patent":{"patent_number":"US-8541990","title":"Power conversion controller having a novel power factor correction mechanism using line voltage normalization","assignee":null,"inventors":[],"filing_date":"2010-11-23T00:00:00.000Z","publication_date":"2013-09-24T00:00:00.000Z","cpc_codes":["H02M"],"num_claims":4,"abstract":"A power conversion controller having a novel power factor correction mechanism, including: a normalization unit, used to generate a normalized signal according to a line voltage by multiplying the line voltage with a normalizing gain, wherein the normalizing gain is proportional to the reciprocal of the amplitude of the line voltage; a reference current generation unit, coupled to the normalization unit to generate a reference current signal by performing an arithmetic operation, wherein the arithmetic operation involves the normalized signal; and a gate drive signal generation unit, used to generate a gate drive signal, wherein the duty of the gate drive signal is determined by a voltage comparison of the reference current signal and a current sensing signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power conversion controller having a novel power factor correction mechanism using line voltage normalization","description":"A power conversion controller having a novel power factor correction mechanism, including: a normalization unit, used to generate a normalized signal according to a line voltage by multiplying the lin","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8541990","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-8541990","citation_suggestion":"Patentable. \"Power conversion controller having a novel power factor correction mechanism using line voltage normalization\" (US-8541990). https://patentable.app/patents/US-8541990","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8541990","json":"https://patentable.app/api/llm-context/US-8541990","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:27:21.773Z"}