{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10488897","patent":{"patent_number":"US-10488897","title":"Methods and apparatus relating to fan and/or lighting control","assignee":null,"inventors":[],"filing_date":"2019-01-11T00:00:00.000Z","publication_date":"2019-11-26T00:00:00.000Z","cpc_codes":["G05B","G06F","G05B"],"num_claims":18,"abstract":"Apparatus for controlling fan system operation including one or more fan devices that include a DC fan motor and circuitry for powering and controlling the DC fan motor so that it provides smooth operation without being off kilter in time or speed when multiple fan devices powered from the same AC power supply line are started concurrently. An exemplary system includes one or more fan devices including a DC fan motor, an AC power interface circuit that provides AC filter power to a DC power supply circuit that provides power to the DC fan motor. The AC power interface circuit including: AC signal and ground input connections, an AC filtering circuit, and AC signal output connections. The DC fan motor may be brushless without an optical sensor and the AC filtering circuit may include: a varistor, a common mode choke, an X capacitor, and two Y capacitors."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Methods and apparatus relating to fan and/or lighting control","description":"Apparatus for controlling fan system operation including one or more fan devices that include a DC fan motor and circuitry for powering and controlling the DC fan motor so that it provides smooth oper","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10488897","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-10488897","citation_suggestion":"Patentable. \"Methods and apparatus relating to fan and/or lighting control\" (US-10488897). https://patentable.app/patents/US-10488897","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10488897","json":"https://patentable.app/api/llm-context/US-10488897","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T08:00:41.823Z"}