{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9847711","patent":{"patent_number":"US-9847711","title":"Switching power supply device control circuit and switching power supply device","assignee":null,"inventors":[],"filing_date":"2016-02-08T00:00:00.000Z","publication_date":"2017-12-19T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M","H02M"],"num_claims":13,"abstract":"A switching power supply device enables measures against noise even when the conducted EMI standard is expanded to a low frequency region. A jitter control circuit, configured so as to reduce generation of conducted EMI noise by giving jitter (frequency diffusion) to a switching frequency which drives a switching element, upon receiving a feedback voltage representing the condition of a load, expands the diffusion width of the switching frequency in stages in accordance with a shift from a fixed frequency region of a maximum oscillation frequency, through a frequency reduction region, to a fixed frequency region of a minimum oscillation frequency. By so doing, it is possible to obtain the effect of sufficient reduction of EMI noise even when an EMI noise measurement frequency range is expanded to a low frequency side."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Switching power supply device control circuit and switching power supply device","description":"A switching power supply device enables measures against noise even when the conducted EMI standard is expanded to a low frequency region. A jitter control circuit, configured so as to reduce generati","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9847711","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-9847711","citation_suggestion":"Patentable. \"Switching power supply device control circuit and switching power supply device\" (US-9847711). https://patentable.app/patents/US-9847711","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9847711","json":"https://patentable.app/api/llm-context/US-9847711","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T16:29:54.657Z"}