{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9647617","patent":{"patent_number":"US-9647617","title":"Method for delivering a duty cycle limited signal to a speaker using a class D amplifier","assignee":null,"inventors":[],"filing_date":"2016-11-08T00:00:00.000Z","publication_date":"2017-05-09T00:00:00.000Z","cpc_codes":["H04R","H04R"],"num_claims":7,"abstract":"A multi-channel Class D audio amplifier is provided to substantially reduce channel-to-channel crosstalk by employing in each channel a local triangle ramp generator controlled by a single global digital timing signal. The noise critical timing/integrating capacitor for the triangle ramp generator resides locally in each channel and adjacent to the PWM comparator of that channel and referenced to the local ground of that channel. The amplifier can also include a duty cycle limitation circuit to limit output power availability depending on the impedance of any attached loads (speakers)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method for delivering a duty cycle limited signal to a speaker using a class D amplifier","description":"A multi-channel Class D audio amplifier is provided to substantially reduce channel-to-channel crosstalk by employing in each channel a local triangle ramp generator controlled by a single global digi","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9647617","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-9647617","citation_suggestion":"Patentable. \"Method for delivering a duty cycle limited signal to a speaker using a class D amplifier\" (US-9647617). https://patentable.app/patents/US-9647617","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9647617","json":"https://patentable.app/api/llm-context/US-9647617","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:29:16.965Z"}