公开(公告)号：US4636744A

公开(公告)日：1987-01-13

申请号：US782689

申请日：1985-10-01

申请人： Ken R. King ,  Celimo P. Hernandez

发明人： Ken R. King ,  Celimo P. Hernandez

IPC分类号： H03F3/30 ,  H03F3/45 ,  H03F3/68

CPC分类号： H03F3/4521 ,  H03F3/3066 ,  H03F3/45094 ,  H03F3/45112 ,  H03F3/45125 ,  H03F3/45224 ,  H03F2203/30048 ,  H03F2203/45258 ,  H03F2203/45366 ,  H03F2203/45392 ,  H03F2203/45656 ,  H03F2203/45674

摘要： The front end of an operational amplifier having an improved controlled slew rate and high gain current output capabilities. The amplifier includes a slew enhancement or large signal stage connected in parallel to a normal front end or small signal stage. The small signal stage supplies a transconductance output which is approximately linearly related to the input until its slew rate limit. The slew enhancement stage is designed to provide slew current when the small signal stage reaches its slew rate limit, thereby providing an increased output current response to an increasing differential input voltage beyond the slew rate of the small signal stage. Two pair of differential amplifiers are used in both a large and small signal stage as well as an improved output stage comprising of current mirrors.

摘要翻译： 具有改进的受控转换速率和高增益电流输出能力的运算放大器的前端。 放大器包括与正常前端或小信号级并联连接的转换增强或大信号级。 小信号级提供跨输出，其与输入近似线性相关，直到其转换速率限制。 该转换增益级设计为当小信号级达到其转换速率极限时提供转换电流，从而为超过小信号级转换速率的差分输入电压提供增加的输出电流响应。 在大信号级和小信号级中都使用两对差分放大器，以及包括电流镜的改进的输出级。

公开(公告)号：US5548524A

公开(公告)日：1996-08-20

申请号：US223924

申请日：1994-04-06

申请人： Celimo P. Hernandez ,  Robyn D. Coultas

发明人： Celimo P. Hernandez ,  Robyn D. Coultas

IPC分类号： G06F17/50

CPC分类号： G06F17/5022

摘要： A method for generating hierarchical netlists for gate level or transistor level circuits having instances with properties defined by algebraic expressions. The present invention avoids duplication of instance definitions using a method of expression promotion in a computer aided design system capable of simple parameter passing, whereby expressions are replaced by tokens in the netlist, and moved up the hierarchy to a level where they can be fully evaluated. The present invention also provides a specific embodiment for implementing the expression promotion method used for netlisting.

摘要翻译： 一种用于生成具有由代数表达式定义的属性的具有实例的门级或晶体管级电路的分级网表的方法。 本发明避免了在能够简单参数传递的计算机辅助设计系统中使用表达式促进方法的实例定义的重复，由此表达式被网表中的令牌替代，并且将层次结构向上移动到可以被完全评估的水平 。 本发明还提供了用于实现用于网表的表达促进方法的具体实施方式。