{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9780700","patent":{"patent_number":"US-9780700","title":"Efficient energy recovery in disk drive during power loss","assignee":null,"inventors":[],"filing_date":"2013-09-27T00:00:00.000Z","publication_date":"2017-10-03T00:00:00.000Z","cpc_codes":["G06F","H02J"],"num_claims":18,"abstract":"A back electromotive force of a rotating motor is converted into a voltage for a load by driving, in accordance with a duty cycle, at least one switching circuit that couples the back electromotive force to a load through a rectifying circuit. An error signal is generated that is a difference between the load voltage and a reference voltage. The duty cycle is controlled as a function of the error signal to cause the load voltage to approach the reference voltage."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Efficient energy recovery in disk drive during power loss","description":"A back electromotive force of a rotating motor is converted into a voltage for a load by driving, in accordance with a duty cycle, at least one switching circuit that couples the back electromotive fo","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9780700","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-9780700","citation_suggestion":"Patentable. \"Efficient energy recovery in disk drive during power loss\" (US-9780700). https://patentable.app/patents/US-9780700","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9780700","json":"https://patentable.app/api/llm-context/US-9780700","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:38:00.804Z"}