{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-10530239","patent":{"patent_number":"US-10530239","title":"Filter systems for reducing bearing current in high-frequency motor control systems","assignee":null,"inventors":[],"filing_date":"2018-03-05T00:00:00.000Z","publication_date":"2020-01-07T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M"],"num_claims":18,"abstract":"A motor controller and methods for operating a motor are described herein. The motor controller includes a high-frequency (HF) inverter having a direct current (DC) input stage and an alternating current (AC) output stage, the HF inverter operable at a switching frequency to generate a three-phase output having a fundamental frequency. The motor controller also includes a differential mode (DM) filter coupled in series with the output stage of the HF inverter and having a resonant frequency less than 10% of the switching frequency, the DM filter configured to reduce harmonic components of the three-phase output and generate a first filtered output. The motor controller further includes a common mode (CM) filter coupled in series with the DM filter, the CM filter configured to filter the first filtered output to generate a second filtered output having a reduced CM voltage to operate the electric motor with a reduced bearing current."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Filter systems for reducing bearing current in high-frequency motor control systems","description":"A motor controller and methods for operating a motor are described herein. The motor controller includes a high-frequency (HF) inverter having a direct current (DC) input stage and an alternating curr","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-10530239","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-10530239","citation_suggestion":"Patentable. \"Filter systems for reducing bearing current in high-frequency motor control systems\" (US-10530239). https://patentable.app/patents/US-10530239","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-10530239","json":"https://patentable.app/api/llm-context/US-10530239","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T23:57:01.108Z"}