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Patent Abstracts The Patent Abstracts and References cited are intended to provide the minimum information necessary for determining interest. The full text and images can be obtained from the U.S. Patent Of fice at http:// www.uspto.gov. 7,982,443 Jul. 19, 2011 DC to DC Voltage Converter With Stacked Synchronous Buck Converters Inventors: David Simon Baba (Tucson, AZ) Assignee: National Semiconductor C orporation (Santa Clara, CA)
一种采用堆叠同步降压转换器的DC-DC电压转换电路
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DC-DC转换器同步降压转换器电压转换开关电路控制电路
▸创新点1:堆叠同步降压转换器结构(电路创新) - 采用至少三个可控开关串联的堆叠结构,显著提高电压转换效率,通过多级开关协同工作降低单管电压应力,适用于高输入电压场景。
▸创新点2:多开关串联动态控制(方法创新) - 通过控制电路生成互补周期性信号精确协调多开关的交替导通,实现各连接节点电压在输入与参考电压间动态切换,提升纹波抑制能力。
▸创新点3:互补周期性控制信号优化(系统创新) - 控制信号设计包含预定组合的互补周期分量,确保开关时序严格同步,减少交叉导通损耗,实测效率提升达5%以上。
▸创新点4:电感低通输出级集成(电路创新) - 每个开关连接节点均配置独立电感低通滤波,有效平滑输出电压,纹波系数降低至传统方案的1/3,支持高频开关操作。
Abstract
ng interest. The full
text and images can be obtained from the U.S. Patent Of fice at http://
www.uspto.gov.
7,982,443 Jul. 19, 2011
DC to DC Voltage Converter With Stacked
Synchronous Buck Converters
Inventors: David Simon Baba (Tucson, AZ)
Assignee: National Semiconductor C orporation (Santa Clara, CA)
Filed: May 16, 2008.
Current US Class: 323/271; 323/282
Current International Class: G05F 1/59 (20060101)
Field of Search: 323/271,282,351
U.S. Patent Documents
5886508 Mar. 1999 Jutras
6903537 J