Invention Grant
- Patent Title: Synchronous rectifier and controller for inductive coupling
- Patent Title (中): 用于电感耦合的同步整流器和控制器
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Application No.: US11777710Application Date: 2007-07-13
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Publication No.: US07920396B2Publication Date: 2011-04-05
- Inventor: Jonathan Robert Knight
- Applicant: Jonathan Robert Knight
- Applicant Address: US CA Santa Clara
- Assignee: National Semiconductor Corporation
- Current Assignee: National Semiconductor Corporation
- Current Assignee Address: US CA Santa Clara
- Main IPC: H02M7/217
- IPC: H02M7/217

Abstract:
A synchronous rectifier is arranged to rectify inductively coupled power using FETs (field effect transistors) to minimize the voltage drop of the rectifier, which minimizes power loss. Power loss is an important consideration in applications where fairly significant power is coupled to a device (such as a battery charger or other energy storage device) for a fairly short time (such as less than one hour) at a fairly low voltage (such as around 2.5 to 4.5 volts). Body diodes of the FETs can be used to supply power for bootstrapping and control logic for controlling the FETs.
Public/Granted literature
- US20090016090A1 Synchronous Rectifier and Controller for Inductive Coupling Public/Granted day:2009-01-15
Information query
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