{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9787204","patent":{"patent_number":"US-9787204","title":"Switching power supply device","assignee":null,"inventors":[],"filing_date":"2016-07-11T00:00:00.000Z","publication_date":"2017-10-10T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M","H02M","H02M","H02M"],"num_claims":10,"abstract":"A drive control circuit for a switching power supply device. The drive control circuit includes an output control circuit configured to generate an output control signal with a pulse width corresponding to an output voltage of the switching power supply device, a threshold setting circuit configured to determine a winding threshold voltage according to a direct current input voltage applied to the series resonant circuit formed of the leakage inductance of an isolation transformer and a capacitor of the switching power supply device, a winding detection circuit configured to compare a voltage generated in a tertiary winding of the isolation transformer with the winding threshold voltage and to accordingly output a winding detection signal, and a drive circuit configured to receive the winding detection signal and the output control signal, and to generate a pulse-width controlled drive signal for driving a first switching element of the switching power supply device."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Switching power supply device","description":"A drive control circuit for a switching power supply device. The drive control circuit includes an output control circuit configured to generate an output control signal with a pulse width correspondi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9787204","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-9787204","citation_suggestion":"Patentable. \"Switching power supply device\" (US-9787204). https://patentable.app/patents/US-9787204","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9787204","json":"https://patentable.app/api/llm-context/US-9787204","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:14:15.598Z"}