{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8471541","patent":{"patent_number":"US-8471541","title":"Switching power supply device and a semiconductor integrated circuit","assignee":null,"inventors":[],"filing_date":"2012-05-11T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H02M","H02M"],"num_claims":6,"abstract":"In a switching power source which controls a current which flows in an inductor through a switching element which performs a switching operation in response to a PWM signal, and forms an output voltage by a capacitor which is provided in series in the inductor, a booster circuit which is constituted of a bootstrap capacity and a MOSFET is provided between an output node of the switching element and a predetermined voltage terminal. The boosted voltage is used as an operational voltage of a driving circuit of the switching element, another source/drain region and a substrate gate are connected with each other, and a junction diode between one source/drain region and the substrate gate is inversely directed with respect to the boosted voltage which is formed by the bootstrap capacity."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Switching power supply device and a semiconductor integrated circuit","description":"In a switching power source which controls a current which flows in an inductor through a switching element which performs a switching operation in response to a PWM signal, and forms an output voltag","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8471541","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-8471541","citation_suggestion":"Patentable. \"Switching power supply device and a semiconductor integrated circuit\" (US-8471541). https://patentable.app/patents/US-8471541","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8471541","json":"https://patentable.app/api/llm-context/US-8471541","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T19:50:35.450Z"}