{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11289934","patent":{"patent_number":"US-11289934","title":"Charger and method for controlling charger","assignee":null,"inventors":[],"filing_date":"2020-02-25T00:00:00.000Z","publication_date":"2022-03-29T00:00:00.000Z","cpc_codes":["H02J","H02J","H02J","H02J","H02J"],"num_claims":9,"abstract":"A charger includes: a relay provided between an input line and a conversion circuit; a voltage sensor that detects AC voltage input to the input line; and a controller that calculates effective value and frequency of the AC voltage based on a waveform of the AC voltage for a predetermined period. When the calculated effective value of the AC voltage is smaller than a voltage threshold during execution of external charging, the controller brings the relay into an open state. When the calculated effective value of the AC voltage is larger than the voltage threshold and the calculated frequency of the AC voltage is larger than a frequency threshold value after the external charging is halted, the controller brings the relay into a close state."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Charger and method for controlling charger","description":"A charger includes: a relay provided between an input line and a conversion circuit; a voltage sensor that detects AC voltage input to the input line; and a controller that calculates effective value ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11289934","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-11289934","citation_suggestion":"Patentable. \"Charger and method for controlling charger\" (US-11289934). https://patentable.app/patents/US-11289934","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11289934","json":"https://patentable.app/api/llm-context/US-11289934","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T14:07:38.529Z"}