{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9819333","patent":{"patent_number":"US-9819333","title":"Circuit for decreasing an electromagnetic interference of a PWM pulse modulation signal","assignee":null,"inventors":[],"filing_date":"2015-09-11T00:00:00.000Z","publication_date":"2017-11-14T00:00:00.000Z","cpc_codes":["H02M"],"num_claims":10,"abstract":"A circuit of decreasing an electromagnetic interference of PWM pulse modulation signal has: a load detecting circuit used to output a mode detection signal to a control circuit according to a current generated by a load when the load connected to the load detecting circuit is detected; the control circuit connected to the load detecting circuit and outputting a voltage control signal to a resistance-adjustment circuit according to the mode detection signal; the resistance-adjustment circuit connected to the control circuit, adjusting a resistance of a driving resistor of the resistance-adjustment circuit and further adjusting a driving frequency of a pulse generating circuit; and the pulse generating circuit connected to the resistance-adjustment circuit and outputting a PWM pulse modulation signal according to the adjusted driving frequency. Under the heavy loading mode, the driving frequency of the PWM pulse modulation signal is adjusted so the electromagnetic interference is decreased effectively."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Circuit for decreasing an electromagnetic interference of a PWM pulse modulation signal","description":"A circuit of decreasing an electromagnetic interference of PWM pulse modulation signal has: a load detecting circuit used to output a mode detection signal to a control circuit according to a current ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9819333","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-9819333","citation_suggestion":"Patentable. \"Circuit for decreasing an electromagnetic interference of a PWM pulse modulation signal\" (US-9819333). https://patentable.app/patents/US-9819333","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9819333","json":"https://patentable.app/api/llm-context/US-9819333","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:22:57.396Z"}