{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9851680","patent":{"patent_number":"US-9851680","title":"Power supply device and image forming apparatus including power supply device","assignee":null,"inventors":[],"filing_date":"2016-06-15T00:00:00.000Z","publication_date":"2017-12-26T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M"],"num_claims":10,"abstract":"A power supply device includes first and second transformers, a first power source configured to output a first DC voltage from the first transformer, a second power source configured to output a second DC voltage from the second transformer, a first winding on a primary side of the first transformer, an auxiliary winding which is wound in the same winding direction as the first winding, and a voltage generator configured to be connected to the auxiliary winding and to generate a power supply voltage for driving a first controller of the first power source and a second controller of the second power source. When an AC voltage drops, control is performed such that the second controller stops prior to the first controller."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power supply device and image forming apparatus including power supply device","description":"A power supply device includes first and second transformers, a first power source configured to output a first DC voltage from the first transformer, a second power source configured to output a seco","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9851680","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-9851680","citation_suggestion":"Patentable. \"Power supply device and image forming apparatus including power supply device\" (US-9851680). https://patentable.app/patents/US-9851680","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9851680","json":"https://patentable.app/api/llm-context/US-9851680","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:36:02.668Z"}