公开(公告)号：US4912394A

公开(公告)日：1990-03-27

申请号：US355610

申请日：1989-05-23

申请人： Yasuhiro Sugimoto ,  Hiromi Mafune

发明人： Yasuhiro Sugimoto ,  Hiromi Mafune

IPC分类号： H03H7/24

CPC分类号： H03H7/24

摘要： An attenuator circuit is provided which comprises an input node, a first resistor connected at one terminal to a reference potential, a second resistor connected to the other terminal of the first resistor, a first output node which is a connection node of the first resistor and the second resistor, a third resistor connected in parallel with the series circuit of the first and second resistors and being of such a type that a resultant resistive value of the first, second and third resistors is equal to a resistive value of the first resistor, a fourth resistor connected at one terminal to a connection node of the second and third resistors and having a resistive value substantially equal to that of the second resistor, and at least one combination resistor of a ladder configuration connected between the other terminal of the fourth resistor and the input node and having a third output node as a junction of its series circuit portion.

摘要翻译： 提供了一种衰减器电路，其包括输入节点，在一个端子处连接到参考电位的第一电阻器，连接到第一电阻器的另一端子的第二电阻器，作为第一电阻器的连接节点的第一输出节点和 第二电阻器，与第一和第二电阻器的串联电路并联连接的第三电阻器，并且是第一，第二和第三电阻器的合成电阻值等于第一电阻器的电阻值的类型， 在一个端子处连接到第二和第三电阻器的连接节点并且具有基本上等于第二电阻器的电阻值的电阻值的第四电阻器，以及连接在第四电阻器的另一个端子之间的梯形配置的至少一个组合电阻器 和输入节点，并具有作为其串联电路部分的结点的第三输出节点。

公开(公告)号：US5144164A

公开(公告)日：1992-09-01

申请号：US567708

申请日：1990-08-14

申请人： Yasuhiro Sugimoto ,  Satoshi Mizoguchi ,  Hiromi Mafune

发明人： Yasuhiro Sugimoto ,  Satoshi Mizoguchi ,  Hiromi Mafune

IPC分类号： H03K17/041 ,  H03K17/687

CPC分类号： H03K17/04106 ,  H03K17/6871

摘要： A current switching circuit includes first and second FETs of the same channel type whose drain-source paths are commonly connected at one end and whose gates are connected to receive logic input signals in an inverted relation, and the other end of the drain-source path of the first FET is connected to an external circuit. The current switching circuit further includes a bipolar transistor connected to a commonly connected node between the drain-source paths of the first and second FETs.

摘要翻译： 电流切换电路包括相同通道类型的第一和第二FET，其漏源路径在一端共同连接，并且其栅极连接以反向关系接收逻辑输入信号，而漏源路径的另一端 的第一FET连接到外部电路。 电流切换电路还包括连接到第一和第二FET的漏 - 源路径之间的公共连接节点的双极晶体管。