{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621029","patent":{"patent_number":"US-9621029","title":"Method and device for high-power-factor flyback converter","assignee":null,"inventors":[],"filing_date":"2015-03-18T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H02M","H02M"],"num_claims":25,"abstract":"The present disclosure is directed to a switching power converter having a power transistor controlled by a controller. The controller includes a multiplier that produces a voltage reference signal. A subtraction circuit subtracts a capacitor signal, which is based on the voltage reference signal, from a sensing signal that is representative of the current flowing through the power transistor. A comparator compares the voltage reference signal to the output of the subtraction circuit, and a driving circuit drives the power transistor based on the comparison resulting in a high power factor and low total harmonic distortion for the converter."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and device for high-power-factor flyback converter","description":"The present disclosure is directed to a switching power converter having a power transistor controlled by a controller. The controller includes a multiplier that produces a voltage reference signal. A","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621029","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-9621029","citation_suggestion":"Patentable. \"Method and device for high-power-factor flyback converter\" (US-9621029). https://patentable.app/patents/US-9621029","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621029","json":"https://patentable.app/api/llm-context/US-9621029","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:52:56.843Z"}