{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8482937","patent":{"patent_number":"US-8482937","title":"Switching control circuits with valley lock for power converters","assignee":null,"inventors":[],"filing_date":"2010-12-08T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":12,"abstract":"A switching control circuit for a switching power converter is provided. The switching control circuit is coupled to a switching device and an auxiliary winding of a transformer. The switching control circuit includes a valley detecting circuit, a valley lock circuit, and a PWM circuit. The valley detecting circuit is coupled to receive a reflected voltage signal from the auxiliary winding of the transformer for outputting a control signal in response to the reflected voltage signal. The valley lock circuit is coupled to receive the control signal for outputting a judging signal in response to the control signal during a first period and a second period following the first period. The PWM circuit outputs a switching signal in response to the judging signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Switching control circuits with valley lock for power converters","description":"A switching control circuit for a switching power converter is provided. The switching control circuit is coupled to a switching device and an auxiliary winding of a transformer. The switching control","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8482937","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-8482937","citation_suggestion":"Patentable. \"Switching control circuits with valley lock for power converters\" (US-8482937). https://patentable.app/patents/US-8482937","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8482937","json":"https://patentable.app/api/llm-context/US-8482937","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:29:27.887Z"}