{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8514600","patent":{"patent_number":"US-8514600","title":"Power conversion apparatus with zero current crossing direction correction","assignee":null,"inventors":[],"filing_date":"2012-04-11T00:00:00.000Z","publication_date":"2013-08-20T00:00:00.000Z","cpc_codes":["H02M","H02M"],"num_claims":8,"abstract":"A power conversion apparatus includes a current sensor that detects a phase current flowing through a phase current line, a first phase-voltage detection unit that detects a first phase voltage in the phase current line with a potential in a P line as a reference, a second phase-voltage detection unit that detects a second phase voltage in the phase current line with a potential in an N line as a reference, an estimation unit that estimates a zero-cross point timing of the phase current based on magnitude and symbol of the first and second phase voltage, a calculation unit that obtains a correction value with respect to a detection value of the current sensor according to the detection value of the current sensor at the estimated zero-cross point timing, and a correction unit that corrects a detection value of the current sensor by using the obtained correction value."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power conversion apparatus with zero current crossing direction correction","description":"A power conversion apparatus includes a current sensor that detects a phase current flowing through a phase current line, a first phase-voltage detection unit that detects a first phase voltage in the","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8514600","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-8514600","citation_suggestion":"Patentable. \"Power conversion apparatus with zero current crossing direction correction\" (US-8514600). https://patentable.app/patents/US-8514600","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8514600","json":"https://patentable.app/api/llm-context/US-8514600","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T20:30:32.032Z"}