Invention Grant
- Patent Title: Gate drive power supply for multilevel converter
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Application No.: US14649293Application Date: 2012-12-04
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Publication No.: US09673713B2Publication Date: 2017-06-06
- Inventor: Marinko Kovacic , Shashank Krishnamurthy
- Applicant: OTIS ELEVATOR COMPANY
- Applicant Address: US CT Farmington
- Assignee: OTIS ELEVATOR COMPANY
- Current Assignee: OTIS ELEVATOR COMPANY
- Current Assignee Address: US CT Farmington
- Agency: Cantor Colburn LLP
- International Application: PCT/US2012/067715 WO 20121204
- International Announcement: WO2014/088551 WO 20140612
- Main IPC: H02M7/5387
- IPC: H02M7/5387 ; H02M7/521 ; H02M3/335 ; H02M7/487 ; H03K17/567 ; H02M1/08 ; H02M3/07 ; H02M1/00

Abstract:
A neutral point clamped, multilevel level converter including a DC voltage link having a positive rail and a negative rail; a phase leg coupled to an AC node, the phase leg having a first switch and a second switch in series between the negative rail and the AC node, the phase leg having a third switch and a fourth switch in series between the positive rail and the AC node; and a gate drive power supply having a charge pump section, the charge pump section generating a first gate drive voltage for the first switch and a second gate drive voltage for the second switch.
Public/Granted literature
- US20150318788A1 GATE DRIVE POWER SUPPLY FOR MULTILEVEL CONVERTER Public/Granted day:2015-11-05
Information query
IPC分类: