{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9628064","patent":{"patent_number":"US-9628064","title":"Multiphase pulse width modulator for class D audio amplifiers","assignee":null,"inventors":[],"filing_date":"2014-09-01T00:00:00.000Z","publication_date":"2017-04-18T00:00:00.000Z","cpc_codes":["H04R","H02M"],"num_claims":20,"abstract":"A multiphase pulse width modulator (PWM) producing N mutually phase shifted PWM signals, which is well-suited for class D audio amplifier applications. The multiphase PWM includes (a) N+1 (N ≧2) analog triangular waveform generators producing N+1 mutually phase shifted triangular waveforms, and (b) N+1 comparators each having a first input coupled to each of the N+1 triangular waveforms and a second input coupled to an audio signal to generate N+1 mutually phase shifted PWM phase signals. A crosspoint switch includes N+1 inputs coupled to the N+1 PWM phase signals, and N outputs to supply the N PWM signals. A crosspoint switch controller selectively connects each of the N+1 inputs to each of the N outputs for a duration of a cycle time in a time sequence to simultaneously generate the N PWM signals such that each signal has interleaved time segments of the N+1 PWM phase signals."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Multiphase pulse width modulator for class D audio amplifiers","description":"A multiphase pulse width modulator (PWM) producing N mutually phase shifted PWM signals, which is well-suited for class D audio amplifier applications. The multiphase PWM includes (a) N+1 (N ≧2) analo","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9628064","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-9628064","citation_suggestion":"Patentable. \"Multiphase pulse width modulator for class D audio amplifiers\" (US-9628064). https://patentable.app/patents/US-9628064","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9628064","json":"https://patentable.app/api/llm-context/US-9628064","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T09:27:51.316Z"}