公开(公告)号：US20110298439A1

公开(公告)日：2011-12-08

申请号：US12794506

申请日：2010-06-04

申请人： Wai Tung NG ,  Jing WANG ,  Kendy NG ,  Haruhiko NISHIO ,  Masahiro SASAKI ,  Tetsuya KAWASHIMA

发明人： Wai Tung NG ,  Jing WANG ,  Kendy NG ,  Haruhiko NISHIO ,  Masahiro SASAKI ,  Tetsuya KAWASHIMA

IPC分类号： G05F1/10

CPC分类号： H02M3/1584 ,  H02M2001/009

摘要： A fully integrated DC-DC converter utilizes digitally controlled dual output stages to achieve fast load transient recovery is presented. The DC-DC converter includes a main converter output stage connected in parallel with an auxiliary output stage. The main output stage is responsible for steady-state operation and is designed to achieve high conversion efficiency using large inductor and power transistors with low on-resistance. The auxiliary stage is responsible for transient suppression and is only active when a load transient occurs. The auxiliary output stage performs well with inductor and power transistors much smaller than those of the main switching stage and thus achieves well balanced power conversion efficiency and dynamic performance with a much smaller area penalty than previously described dual-output-stage converters.

摘要翻译： 一个完全集成的DC-DC转换器采用数字控制双输出级来实现快速负载瞬态恢复。 DC-DC转换器包括与辅助输出级并联连接的主转换器输出级。 主输出级负责稳态运行，并设计为使用大电感和功率晶体管实现高转换效率，具有低导通电阻。 辅助级负责瞬态抑制，仅在发生负载瞬变时有效。 辅助输出级与主开关级的电感和功率晶体管相比表现良好，从而实现了良好平衡的功率转换效率和动态性能，具有比先前描述的双输出级转换器小得多的面积损失。

公开(公告)号：US08441242B2

公开(公告)日：2013-05-14

申请号：US12794506

申请日：2010-06-04

申请人： Wai Tung Ng ,  Jing Wang ,  Kendy Ng ,  Haruhiko Nishio ,  Masahiro Sasaki ,  Tetsuya Kawashima

发明人： Wai Tung Ng ,  Jing Wang ,  Kendy Ng ,  Haruhiko Nishio ,  Masahiro Sasaki ,  Tetsuya Kawashima

IPC分类号： G05F1/00

CPC分类号： H02M3/1584 ,  H02M2001/009

摘要： A fully integrated DC-DC converter utilizes digitally controlled dual output stages to achieve fast load transient recovery is presented. The DC-DC converter includes a main converter output stage connected in parallel with an auxiliary output stage. The main output stage is responsible for steady-state operation and is designed to achieve high conversion efficiency using large inductor and power transistors with low on-resistance. The auxiliary stage is responsible for transient suppression and is only active when a load transient occurs. The auxiliary output stage performs well with inductor and power transistors much smaller than those of the main switching stage and thus achieves well balanced power conversion efficiency and dynamic performance with a much smaller area penalty than previously described dual-output-stage converters.

摘要翻译： 一个完全集成的DC-DC转换器采用数字控制双输出级来实现快速负载瞬态恢复。 DC-DC转换器包括与辅助输出级并联连接的主转换器输出级。 主输出级负责稳态运行，并设计为使用大电感和功率晶体管实现高转换效率，具有低导通电阻。 辅助级负责瞬态抑制，仅在发生负载瞬变时有效。 辅助输出级与主开关级的电感和功率晶体管相比表现良好，从而实现了良好平衡的功率转换效率和动态性能，具有比先前描述的双输出级转换器小得多的面积损失。