{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8471540","patent":{"patent_number":"US-8471540","title":"DC-DC converter","assignee":null,"inventors":[],"filing_date":"2007-07-24T00:00:00.000Z","publication_date":"2013-06-25T00:00:00.000Z","cpc_codes":["H02M","H02M"],"num_claims":6,"abstract":"A DC-DC converter performing pulse frequency modulation (PFM) control with a fixed ON time, having a control circuit performing PFM control of the ON time for a switch, including an error amplifier amplifying the difference between an output voltage and a target voltage, a voltage controlled oscillator increasing and decreasing in frequency and outputting an error signal, and a one-shot circuit generating the ON time based on a trigger signal output from the VCO, where ON time is linked to an input voltage and/or an output voltage. The switching frequency decreases under light loads and current consumption is reduced, and the switching frequency is made to be approximately constant under heavy loads."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"DC-DC converter","description":"A DC-DC converter performing pulse frequency modulation (PFM) control with a fixed ON time, having a control circuit performing PFM control of the ON time for a switch, including an error amplifier am","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8471540","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-8471540","citation_suggestion":"Patentable. \"DC-DC converter\" (US-8471540). https://patentable.app/patents/US-8471540","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8471540","json":"https://patentable.app/api/llm-context/US-8471540","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T15:08:20.443Z"}