{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9716426","patent":{"patent_number":"US-9716426","title":"Switching power supply circuit","assignee":null,"inventors":[],"filing_date":"2015-11-16T00:00:00.000Z","publication_date":"2017-07-25T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M","H02M"],"num_claims":7,"abstract":"A lamp oscillator which outputs a sawtooth wave signal to be compared with an error signal of an output voltage in order to generate a PWM signal. The oscillator includes a first charging current changing circuit, in which a current amplifier converts a differential voltage between the error signal and a reference voltage into a current and outputs the converted current. When the load of a switching power supply circuit is heavy, a capacitor is charged with a constant current and generates a sawtooth wave signal having a predetermined slope. During a light load, the first charging current changing circuit adds the current, which increases as the load becomes lighter, to the current to thereby make the slope of the sawtooth wave signal steeper."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Switching power supply circuit","description":"A lamp oscillator which outputs a sawtooth wave signal to be compared with an error signal of an output voltage in order to generate a PWM signal. The oscillator includes a first charging current chan","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9716426","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-9716426","citation_suggestion":"Patentable. \"Switching power supply circuit\" (US-9716426). https://patentable.app/patents/US-9716426","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9716426","json":"https://patentable.app/api/llm-context/US-9716426","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T06:43:20.287Z"}