{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621027","patent":{"patent_number":"US-9621027","title":"Power supplies and control methods capable of improving power factor during light load","assignee":null,"inventors":[],"filing_date":"2014-09-05T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M"],"num_claims":20,"abstract":"An apparatus is capable of improving the power factor of a power supply powered by a high power line and a ground power line. The apparatus comprises a line voltage detector and an ON time controller. The line voltage detector provides a scaled voltage to represent a line voltage of the high power line. The ON time controller has a valley voltage detector, which provides, in response to the scaled voltage, a valley representative representing a valley voltage of the line voltage. The ON time controller controls an ON time of a power switch in the power supply in response to the valley representative."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power supplies and control methods capable of improving power factor during light load","description":"An apparatus is capable of improving the power factor of a power supply powered by a high power line and a ground power line. The apparatus comprises a line voltage detector and an ON time controller.","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621027","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-9621027","citation_suggestion":"Patentable. \"Power supplies and control methods capable of improving power factor during light load\" (US-9621027). https://patentable.app/patents/US-9621027","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621027","json":"https://patentable.app/api/llm-context/US-9621027","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T17:28:18.773Z"}