公开(公告)号：US5631589A

公开(公告)日：1997-05-20

申请号：US324073

申请日：1994-10-14

申请人： Yachin Afek ,  Claudine Tordjman ,  Ricardo Berger

发明人： Yachin Afek ,  Claudine Tordjman ,  Ricardo Berger

IPC分类号： H03K19/003 ,  H03B1/00

CPC分类号： H03K19/00361

摘要： A transition control circuit (2) for controlling the transitions of an output signal, at an output node (8) of a driver circuit, in dependence on the logic state of an input signal at an input node (10). The output signal being switchable between a first logic state and a second logic state. The transition control circuit (2) comprises first means (16) and second means (14). The first means (16) is enabled when the output signal has the first logic state and the input signal has the second logic state, and is disabled when the output signal has the second logic state or the input signal has the first logic state. Once enabled, the first means (16) couples the output node (8) to a first supply line (GNDA) whereby the output signal switches to the second logic state. The second means (14) is enabled when the output signal has the second logic state and the input signal has the second logic state, and is disabled when the output signal has the first logic state or the input signal has the first logic state. Once enabled, the second means (14) couples the output node to a second supply line (GNDB) whereby the output signal is held in the second logic state until the next transition of the input signal.

摘要翻译： 一种用于根据输入节点（10）上的输入信号的逻辑状态，在驱动电路的输出节点（8）处控制输出信号的转变的转移控制电路（2）。 输出信号可在第一逻辑状态和第二逻辑状态之间切换。 过渡控制电路（2）包括第一装置（16）和第二装置（14）。 当输出信号具有第一逻辑状态并且输入信号具有第二逻辑状态时，第一装置（16）被使能，并且当输出信号具有第二逻辑状态或输入信号具有第一逻辑状态时被禁用。 一旦使能，第一装置（16）将输出节点（8）耦合到第一电源线（GNDA），由此输出信号切换到第二逻辑状态。 当输出信号具有第二逻辑状态并且输入信号具有第二逻辑状态时，第二装置（14）被使能，并且当输出信号具有第一逻辑状态或输入信号具有第一逻辑状态时被禁用。 一旦使能，第二装置（14）将输出节点耦合到第二电源线（GNDB），由此输出信号保持在第二逻辑状态直到输入信号的下一个转换。