公开(公告)号：US06617890B1

公开(公告)日：2003-09-09

申请号：US10104393

申请日：2002-03-22

申请人： Tsung-Hao Chen ,  Peter Hazucha ,  Atila Alvandpour ,  Tanay Karnik ,  Chung-Ping Chen

发明人： Tsung-Hao Chen ,  Peter Hazucha ,  Atila Alvandpour ,  Tanay Karnik ,  Chung-Ping Chen

IPC分类号： H03K5153

CPC分类号： G01R19/16538 ,  G06F1/28 ,  H03K5/08 ,  H03K5/153

摘要： A system for measuring the stability of a power signal from a power supply includes a threshold violation detector. The threshold violation detector includes a comparator and an indicator. The comparator has a power signal input, a threshold signal input, and a comparison result output, and is configured to compare the power signal on the power signal input with a threshold on the threshold signal input to present a comparison result signal on the comparison result output. The indicator has a threshold violation output and a comparison input that receives the comparison result signal from the comparator. The indicator presents a threshold violation signal on the threshold violation output when the comparison result signal indicates that the power signal has violated the threshold.

摘要翻译： 用于测量来自电源的功率信号的稳定性的系统包括阈值违规检测器。 阈值违规检测器包括比较器和指示器。 比较器具有功率信号输入，阈值信号输入和比较结果输出，并且被配置为将功率信号输入上的功率信号与阈值信号输入上的阈值进行比较，以在比较结果上呈现比较结果信号 输出。 指示器具有阈值违反输出和比较输入，其从比较器接收比较结果信号。 当比较结果信号指示电源信号已经违反阈值时，指示器在阈值违反输出上呈现阈值违反信号。

公开(公告)号：US08710869B2

公开(公告)日：2014-04-29

申请号：US10422238

申请日：2003-04-23

申请人： Peter Hazucha ,  Tsung-Hao Chen ,  Tanay Karnik ,  Chung-Ping Chen

发明人： Peter Hazucha ,  Tsung-Hao Chen ,  Tanay Karnik ,  Chung-Ping Chen

IPC分类号： H03K5/22 ,  H03K5/24

CPC分类号： H03K5/2481 ,  H03F3/45183 ,  H03F2203/45544 ,  H03F2203/45646

摘要： A comparator to provide an output voltage indicative of comparing an input voltage with a reference voltage, where the comparator has an asymmetric frequency response. With an asymmetric frequency response, the bandwidth of the input voltage may be greater than the bandwidth of the reference voltage. A comparator includes a differential pair of transistors coupled to a current mirror and biased by a current source, where in one embodiment, a capacitor shunts the sources of the differential pair. In a second embodiment, a capacitor couples the input voltage port to the gates of the current mirror transistors. In a third embodiment, the comparator utilizes both capacitors of the first and second embodiments.

摘要翻译： 比较器，用于提供指示将输入电压与参考电压进行比较的输出电压，其中比较器具有不对称的频率响应。 对于非对称频率响应，输入电压的带宽可能大于参考电压的带宽。 比较器包括耦合到电流镜并由电流源偏置的晶体管的差分对，其中在一个实施例中，电容器分流差分对的源极。 在第二实施例中，电容器将输入电压端口耦合到电流镜晶体管的栅极。 在第三实施例中，比较器利用了第一和第二实施例的两个电容器。