{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9667137","patent":{"patent_number":"US-9667137","title":"System to increase the in-line power factor of a three-phase brushless DC motor","assignee":null,"inventors":[],"filing_date":"2015-08-11T00:00:00.000Z","publication_date":"2017-05-30T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M"],"num_claims":14,"abstract":"The present invention relates to a control system and a method for raising the mains-side power factor λ of three-phase fed EC motors having a dc voltage intermediate circuit (2) with an intermediate center tap (DCM) for generating a positive and a negative intermediate circuit potential (DC+, DC−), comprising three active bridge arms (Ia, IIa, IIIa), each of which are connected to a subordinate two-point current control (ZPR1, ZPR2, ZPR3) and, in each case, via said current control to a superimposed intermediate circuit voltage control (3), which controls the potential difference between the middle circuit potentials (DC+, DC−) via set point settings for the subordinate two-point current controllers (ZPR1, ZPR2, ZPR3)."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System to increase the in-line power factor of a three-phase brushless DC motor","description":"The present invention relates to a control system and a method for raising the mains-side power factor λ of three-phase fed EC motors having a dc voltage intermediate circuit (2) with an intermediate ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9667137","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-9667137","citation_suggestion":"Patentable. \"System to increase the in-line power factor of a three-phase brushless DC motor\" (US-9667137). https://patentable.app/patents/US-9667137","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9667137","json":"https://patentable.app/api/llm-context/US-9667137","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T03:54:49.393Z"}