{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9819275","patent":{"patent_number":"US-9819275","title":"Power supply device","assignee":null,"inventors":[],"filing_date":"2015-05-18T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M","H02M","H02M","H02M","H02M","H02M","H02M"],"num_claims":7,"abstract":"A power supply device has resonance-type DC-DC converters of three phases connected in parallel, said converters respectively having operation phases shifted from each other by 120°. The converters include switching circuits, series resonant circuits, and rectifying smoothing circuits, respectively. The series resonant circuits include first transformers, second transformers and resonance capacitors, respectively. Each of primary winding wires of the first transformers, each of primary winding wires of the second transformers, and respective resonance capacitors are connected in series. Each of secondary winding wires of the second transformers is connected to each of the rectifying smoothing circuits. The first transformers are provided with different cores, respectively, the primary winding wires and the secondary winding wires are insulated from each other by means of dividing bobbins, and the secondary winding wires of respective phases are connected in parallel."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power supply device","description":"A power supply device has resonance-type DC-DC converters of three phases connected in parallel, said converters respectively having operation phases shifted from each other by 120°. The converters in","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9819275","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-9819275","citation_suggestion":"Patentable. \"Power supply device\" (US-9819275). https://patentable.app/patents/US-9819275","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9819275","json":"https://patentable.app/api/llm-context/US-9819275","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:04:43.277Z"}