公开(公告)号：US06707339B1

公开(公告)日：2004-03-16

申请号：US10301992

申请日：2002-11-22

申请人： Kiyoshi Kase ,  Joseph Y. Chan ,  Chunhe Zhao

发明人： Kiyoshi Kase ,  Joseph Y. Chan ,  Chunhe Zhao

IPC分类号： H03F345

CPC分类号： H03F3/3023 ,  H03F3/45183 ,  H03F2203/45454 ,  H03F2203/45584 ,  H03F2203/45658

摘要： An operational amplifier circuit (10) uses a first operational amplifier (16) to selectively provide a boosted drive current in response to an input signal voltage transitioning. The boosted driver current is used by a second operational amplifier (22) having a single high gain stage (76). The output drive current of the operational amplifier circuit (10) is increased to a predetermined maximum value for a predetermined time after an input signal transition in order to source increased current to a capacitive or inductive load only during output signal transitions. Separate current boost circuits (30, 70) in each of the first and second operational amplifiers enable early signal transition detection and ensure continuation of increased current until completion of the signal transition.

摘要翻译： 运算放大器电路（10）使用第一运算放大器（16）来响应于输入信号电压转换来选择性地提供升压的驱动电流。 升压的驱动器电流由具有单个高增益级（76）的第二运算放大器（22）使用。 运算放大器电路（10）的输出驱动电流在输入信号转换之后的预定时间内增加到预定的最大值，以便仅在输出信号转换期间将电流增加到电容或电感性负载。 第一和第二运算放大器中的每一个中的独立电流升压电路（30,70）可以实现早期的信号转换检测，并确保持续增加的电流，直到完成信号转换。

公开(公告)号：US08575989B1

公开(公告)日：2013-11-05

申请号：US13545774

申请日：2012-07-10

申请人： Douglas A. Garrity ,  Chunhe Zhao

发明人： Douglas A. Garrity ,  Chunhe Zhao

IPC分类号： H03K17/00

CPC分类号： H03K17/06 ,  G11C27/02 ,  H03K2017/066

摘要： A switch is provided. The circuit includes a plurality of transistors configured to electrically isolate the input of the switch from the output of the switch. In one embodiment, for example, the plurality of transistors may be configured to provide at least one path between the input and the output of the switch, and to provide at least three layers of electrical isolation between the input and the output of the switch when the switch is open.

摘要翻译： 提供开关。 电路包括多个晶体管，其被配置为将开关的输入与开关的输出电隔离。 在一个实施例中，例如，多个晶体管可以被配置为在开关的输入和输出之间提供至少一个路径，并且在开关的输入和输出之间提供至少三层电隔离层 开关打开。