{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9601983","patent":{"patent_number":"US-9601983","title":"Flyback power converter with weighted frequency and quasi-resonance","assignee":null,"inventors":[],"filing_date":"2015-04-20T00:00:00.000Z","publication_date":"2017-03-21T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":20,"abstract":"The present invention provides a flyback power converter and a control circuit and a control method thereof. The flyback power converter includes: a power stage circuit, a voltage sense circuit, a current sense circuit, and a control circuit. When the flyback power converter operates in a quasi-resonant mode, the control circuit determines a time point of turning OFF a power switch in the power stage circuit according to a current sense signal, a pulse width modulation (PWM) frequency of a PWM signal, and a predetermined threshold, wherein the control circuit adaptively adjusts an ON period of the power switch, or adaptively adjusts an operation bandwidth or an amplifier gain of an error amplifier circuit in a feedback control loop according to the PWM frequency to mitigate an output voltage ripple."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Flyback power converter with weighted frequency and quasi-resonance","description":"The present invention provides a flyback power converter and a control circuit and a control method thereof. The flyback power converter includes: a power stage circuit, a voltage sense circuit, a cur","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9601983","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-9601983","citation_suggestion":"Patentable. \"Flyback power converter with weighted frequency and quasi-resonance\" (US-9601983). https://patentable.app/patents/US-9601983","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9601983","json":"https://patentable.app/api/llm-context/US-9601983","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:26:04.881Z"}