公开(公告)号：US07804350B1

公开(公告)日：2010-09-28

申请号：US12428285

申请日：2009-04-22

申请人： Charles A. Edmondson ,  Joseph J. Walsh

发明人： Charles A. Edmondson ,  Joseph J. Walsh

IPC分类号： H03L5/00

CPC分类号： H03K3/356113

摘要： A level-shifter circuit capable of operating at low voltages. Two complementary current paths are provided between each of two intermediate nodes (at least one of which being an output node) and one of the supply voltages. A network of field-effect transistors are coupled between the other voltage supply and the intermediate nodes. The transistors include a pull-up (or pull-down as the case may be) transistor pair coupled to the high (or low as the case may be) voltage supply. There are two cascode transistor pairs coupled between the pull-up (or down) transistors and the corresponding intermediate node. One cascode pair couples the respective intermediate node to the drain terminal of the respective pull-up (or down) transistor. The other cascoded pair cross-couples the intermediate node to the gate terminal of the opposite pull-up (or down) transistor.

摘要翻译： 能够在低电压下工作的电平转换电路。 在两个中间节点（其中至少一个是输出节点）和电源电压之一之间的每一个之间提供两个互补电流路径。 场效应晶体管的网络耦合在另一电压源和中间节点之间。 晶体管包括耦合到高电压（或尽可能低的情况）的电压供应的上拉（或下拉，视情况而定）晶体管对。 耦合在上拉（或下降）晶体管和相应的中间节点之间的两个共源共栅晶体管对。 一个共源共栅对将相应的中间节点耦合到相应的上拉（或向下）晶体管的漏极端子。 另一个串联对将中间节点交叉耦合到相反上拉（或下降）晶体管的栅极端子。