{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9661700","patent":{"patent_number":"US-9661700","title":"Primary control LED driver with additional power output and control method thereof","assignee":null,"inventors":[],"filing_date":"2015-11-10T00:00:00.000Z","publication_date":"2017-05-23T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":17,"abstract":"A primary control LED driver includes: a switching converter having a main switch and a first winding, and configured to provide an LED driving current; a second winding magnetically coupled to the first winding and configured to provide a power supply voltage at a first terminal; a first sensing resistor with a first terminal coupled to the main switch; a second sensing resistor with a first terminal coupled to the second terminals of the first sensing resistor and the second winding; an output current calculator calculating an equivalent value of the LED driving current based on the voltage at the first terminal of the first sensing resistor; an error amplifier configured to generate a compensation signal based on the equivalent value and a reference voltage; and a control circuit generating a control signal to control the main switch based on the compensation signal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Primary control LED driver with additional power output and control method thereof","description":"A primary control LED driver includes: a switching converter having a main switch and a first winding, and configured to provide an LED driving current; a second winding magnetically coupled to the fi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9661700","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-9661700","citation_suggestion":"Patentable. \"Primary control LED driver with additional power output and control method thereof\" (US-9661700). https://patentable.app/patents/US-9661700","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9661700","json":"https://patentable.app/api/llm-context/US-9661700","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T12:04:16.897Z"}