{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9722594","patent":{"patent_number":"US-9722594","title":"Drive device","assignee":null,"inventors":[],"filing_date":"2015-03-12T00:00:00.000Z","publication_date":"2017-08-01T00:00:00.000Z","cpc_codes":["H02M","H02M","H02M","H02M","H02M"],"num_claims":8,"abstract":"A drive device includes an off-side circuit controlling a gate current of a power switching element to perform an off operation. The off-side circuit includes: a main MOS transistor; a sense MOS transistor defining a drain current of the main MOS transistor; and a sense current control circuit controlling a drain current of the sense MOS transistor to be constant. The sense current control circuit includes: a reference power supply; a reference resistor; and an operational amplifier generating an output at the gate of the sense MOS transistor so that a potential between the reference resistor and the sense MOS transistor approaches the reference potential. The sense current control circuit flows a current, determined by a resistance value of the reference resistor and the reference potential, as the drain current of the sense MOS transistor."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Drive device","description":"A drive device includes an off-side circuit controlling a gate current of a power switching element to perform an off operation. The off-side circuit includes: a main MOS transistor; a sense MOS trans","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9722594","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-9722594","citation_suggestion":"Patentable. \"Drive device\" (US-9722594). https://patentable.app/patents/US-9722594","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9722594","json":"https://patentable.app/api/llm-context/US-9722594","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T04:32:16.288Z"}