{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9837887","patent":{"patent_number":"US-9837887","title":"IGBT gate drive with active turnoff to reduce switching loss","assignee":null,"inventors":[],"filing_date":"2016-08-01T00:00:00.000Z","publication_date":"2017-12-05T00:00:00.000Z","cpc_codes":["H02M"],"num_claims":20,"abstract":"A vehicle powertrain includes an IGBT, having a Kelvin emitter and a mirror current sense, configured to energize an inductance, a first switch configured to draw a current from a gate of the IGBT at a rate based on a resistance engaged by the first switch while a current of the inductance exceeds a threshold, and a second switch configured to increase the rate in response to the current being less than the threshold. In one embodiment, the current is based on a filtered voltage across a resistor connected between the mirror current sense and chassis ground while the Kelvin emitter is connected to chassis ground. In another embodiment, the current is based on a filtered voltage across a resistor connected between the mirror current sense and the Kelvin emitter."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"IGBT gate drive with active turnoff to reduce switching loss","description":"A vehicle powertrain includes an IGBT, having a Kelvin emitter and a mirror current sense, configured to energize an inductance, a first switch configured to draw a current from a gate of the IGBT at ","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9837887","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-9837887","citation_suggestion":"Patentable. \"IGBT gate drive with active turnoff to reduce switching loss\" (US-9837887). https://patentable.app/patents/US-9837887","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9837887","json":"https://patentable.app/api/llm-context/US-9837887","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T07:05:01.255Z"}