{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8537574","patent":{"patent_number":"US-8537574","title":"Power source controlling semiconductor integrated circuit and insulated direct-current power source device","assignee":null,"inventors":[],"filing_date":"2011-02-15T00:00:00.000Z","publication_date":"2013-09-17T00:00:00.000Z","cpc_codes":["H02M","H02M"],"num_claims":10,"abstract":"A power source controlling IC controlling a current flown through the primary side winding of a transformer is provided with an external terminal to which a detected voltage from the secondary side is fed back through a photocoupler; a control circuit generating and outputting a control signal of a switching element controlling the current according to an input voltage; a voltage generating circuit generating an internal reference voltage based on the input voltage; a pull-up section connected to the terminal to pull up the potential of the terminal to the internal reference voltage to give a bias voltage to a light receiving element of the photocoupler; and a voltage comparing circuit comparing the voltage of the external terminal and a predetermined reference voltage, wherein the control circuit stops outputting the control signal based on the output of the first voltage comparing circuit when detecting an abnormality."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Power source controlling semiconductor integrated circuit and insulated direct-current power source device","description":"A power source controlling IC controlling a current flown through the primary side winding of a transformer is provided with an external terminal to which a detected voltage from the secondary side is","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8537574","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-8537574","citation_suggestion":"Patentable. \"Power source controlling semiconductor integrated circuit and insulated direct-current power source device\" (US-8537574). https://patentable.app/patents/US-8537574","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8537574","json":"https://patentable.app/api/llm-context/US-8537574","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T15:37:00.153Z"}