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本帖最后由 ampper 于 2010-5-31 22:16 编辑
http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=5351169&queryText%3Dbootstrap+and+converter%26openedRefinements%3D*%26searchField%3DSearch+All
Design of novel bootstrap driver used in high power BUCK converter
Zekun Zhou; Xing Ming; Bo Zhang; Zhaoji Li;
ASIC, 2009. ASICON '09. IEEE 8th International Conference on
Digital Object Identifier: 10.1109/ASICON.2009.5351169
Publication Year: 2009 , Page(s): 1165 - 1168
IEEE Conferences
Abstract | Full Text: PDF (2350 KB)
A novel bootstrap driver suitable for high power buck converter is presented in this paper. With the help of
bootstrap driver, the P type power MOSFET used in conventional buck converter can be replaced by N type power MOSFET
in order to optimize efficiency and area. The proposed bootstrap driver, abandoning conventional level shift
circuit, can work properly in a wide power supply range with sufficient protection. The bootstrap driver has been
validated with UMC 0.6-¿m BCD process based on a monolithic voltage-mode BUCK converter capable of driving up to 3
A loads with supply voltage from 8 to 30 V. Simulation results demonstrate that the power efficiency is over 84% for
load current from 1 A to 3 A, and the buck converter can operate properly under all the application conditions. Read
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发表于 2010-5-28 20:01:46
发表于 2010-5-31 08:46:32
