Invention Grant
US07671574B1 Ground voltage drop reduction circuit for a buck DC-DC converter
有权
降压DC-DC转换器的接地电压降降低电路
- Patent Title: Ground voltage drop reduction circuit for a buck DC-DC converter
- Patent Title (中): 降压DC-DC转换器的接地电压降降低电路
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Application No.: US11755623Application Date: 2007-05-30
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Publication No.: US07671574B1Publication Date: 2010-03-02
- Inventor: Alexander Burinskiy , Frank De Stasi
- Applicant: Alexander Burinskiy , Frank De Stasi
- Applicant Address: US CA Santa Clara
- Assignee: National Semiconductor Corporation
- Current Assignee: National Semiconductor Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Darby & Darby P.C.
- Agent Matthew M. Gaffney
- Main IPC: G05F1/00
- IPC: G05F1/00
Abstract:
A buck DC to DC converter is arranged to more accurately regulate an output voltage by substantially eliminating a ground voltage error caused at least in part by parasitic resistance during low side conversion/regulation. During high side conduction of the high side switch, the converter employs the output voltage for error correction. And during low side conduction of the low side switch, the converter employs a sampled and held version of the output voltage for error correction which enables the converter to eliminate the ground voltage error caused by parasitic resistance.
Information query
IPC分类:
