{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10498223","patent":{"patent_number":"US-10498223","title":"Power supply circuit with improved power factor","assignee":null,"inventors":[],"filing_date":"2019-03-31T00:00:00.000Z","publication_date":"2019-12-03T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M","H02M","H02M","H02M","H02M"],"num_claims":16,"abstract":"A power supply circuit includes: an alternating current-to-direct current (AC-to-DC) converter, a transformer, a first current switch, a switch control circuit and a power factor enhancement circuit. The AC-to-DC converter converts an AC power signal into a DC power signal. The transformer includes a primary side and a secondary side, where a first terminal of the primary side is coupled to the AC-to-DC converter, a second terminal of the secondary side is coupled to a ground voltage level, a first terminal of the first current switch is coupled to a second terminal of the primary side, and a second terminal of the first current switch is coupled to the ground voltage level through an impedance component. The power factor enhancement circuit selectively adjusts a zero current detection voltage to make the switch control circuit set the first current switch to be in a conducting state."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power supply circuit with improved power factor","description":"A power supply circuit includes: an alternating current-to-direct current (AC-to-DC) converter, a transformer, a first current switch, a switch control circuit and a power factor enhancement circuit. ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10498223","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-10498223","citation_suggestion":"Patentable. \"Power supply circuit with improved power factor\" (US-10498223). https://patentable.app/patents/US-10498223","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10498223","json":"https://patentable.app/api/llm-context/US-10498223","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:31:37.117Z"}