{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9621101","patent":{"patent_number":"US-9621101","title":"Electromagnetic compatibility filter","assignee":null,"inventors":[],"filing_date":"2015-12-08T00:00:00.000Z","publication_date":"2017-04-11T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M","H02M"],"num_claims":11,"abstract":"The variable speed drive system is arranged to receive input power at fixed input voltage magnitude and frequency and provide power at a variable voltage and variable frequency. The variable speed drive includes a converter connected to an AC source to convert the input voltage to a boosted DC voltage. A DC link connected to the converter filters the DC voltage from the converter stage. An inverter converts the DC link voltage into variable voltage and the variable frequency AC power. An electromagnetic compatibility (EMC) filter includes a series RC circuit from phase-to-ground circuit for each input phase of the converter. The RC circuit includes a resistor connected in series with a capacitor between the converter phase and ground. The EMC filter is connected to the line side of the converter. An inductor is connected between the input source and the EMC filter."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Electromagnetic compatibility filter","description":"The variable speed drive system is arranged to receive input power at fixed input voltage magnitude and frequency and provide power at a variable voltage and variable frequency. The variable speed dri","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9621101","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-9621101","citation_suggestion":"Patentable. \"Electromagnetic compatibility filter\" (US-9621101). https://patentable.app/patents/US-9621101","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9621101","json":"https://patentable.app/api/llm-context/US-9621101","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T08:19:25.090Z"}