{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9590490","patent":{"patent_number":"US-9590490","title":"Inrush current suppression circuit","assignee":null,"inventors":[],"filing_date":"2014-05-22T00:00:00.000Z","publication_date":"2017-03-07T00:00:00.000Z","cpc_codes":["H02M","H02M"],"num_claims":6,"abstract":"The present invention provides an inrush current suppression circuit that is provided in an electric power conversion apparatus and suppresses inrush current that occurs when power is turned on, the electric power conversion apparatus including an inverter circuit and a drive power circuit that generates direct voltages of two levels as drive voltages, wherein the inrush current suppression circuit includes: an inrush current prevention resistor disposed between a converter circuit that generates DC power to be supplied to the inverter circuit and a smoothing circuit; a relay connected in parallel to the inrush current prevention resistor; and a relay control circuit that applies to the relay a higher direct voltage to shift the relay to a closed state, and after the relay is set to the closed state, applies to the relay a lower direct voltage to retain the closed state."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Inrush current suppression circuit","description":"The present invention provides an inrush current suppression circuit that is provided in an electric power conversion apparatus and suppresses inrush current that occurs when power is turned on, the e","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9590490","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-9590490","citation_suggestion":"Patentable. \"Inrush current suppression circuit\" (US-9590490). https://patentable.app/patents/US-9590490","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9590490","json":"https://patentable.app/api/llm-context/US-9590490","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T13:16:41.044Z"}