{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8482942","patent":{"patent_number":"US-8482942","title":"Method and apparatus for bridgeless power factor correction","assignee":null,"inventors":[],"filing_date":"2010-08-26T00:00:00.000Z","publication_date":"2013-07-09T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M"],"num_claims":19,"abstract":"This document discusses, among other things, an improved bridgeless power factor correction (PFC) circuit. In an example, the PFC circuit can include a first switch and a control circuit, the control circuit configured to provide a switching cycle, to generate a carrier signal corresponding to the switching cycle, and to generate a control signal for the first switch during the switching cycle. In an example, the control circuit can receive a first signal indicative of current through the first switch and generate a duty cycle for the first switch using a comparison of the first signal and the carrier signal. In an example, the control circuit can initiate the carrier signal at the beginning of the switching cycle and provide a carrier signal duration corresponding to a fraction of a duration of the switching cycle of the PFC circuit (e.g., one-half, one-third, etc.)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for bridgeless power factor correction","description":"This document discusses, among other things, an improved bridgeless power factor correction (PFC) circuit. In an example, the PFC circuit can include a first switch and a control circuit, the control ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8482942","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-8482942","citation_suggestion":"Patentable. \"Method and apparatus for bridgeless power factor correction\" (US-8482942). https://patentable.app/patents/US-8482942","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8482942","json":"https://patentable.app/api/llm-context/US-8482942","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T10:35:17.256Z"}