公开(公告)号：US20170155243A1

公开(公告)日：2017-06-01

申请号：US14954164

申请日：2015-11-30

Applicant: BROADCOM CORPORATION

Inventor： Junhua TAN ,  Hui PAN ,  Evelyn WANG ,  Abhijat GOYAL ,  Kent OERTLE

IPC: H02H9/04

CPC classification number: H02H9/046

Abstract: A device for providing electrostatic discharge (ESD) protection includes circuitry configured to detect an occurrence of an ESD event at one or more voltage rails. An ESD clamp is activated via a clamp triggering path to provide a discharge path for an ESD current. A gate voltage of the ESD clamp is maintained greater than a predetermined threshold via a holding path in parallel with the clamp triggering path.

公开(公告)号：US20150303907A1

公开(公告)日：2015-10-22

申请号：US14265165

申请日：2014-04-29

Applicant: BROADCOM CORPORATION

Inventor： Hui PAN ,  Yuan Yao ,  Ahmad Chini ,  Mehmet Vakif Tazebay ,  Bruce H. Conway

IPC: H03K5/08 ,  H03H11/30 ,  H04B3/16 ,  H03K5/1252

CPC classification number: H03K5/08 ,  H03F3/45475 ,  H03F3/45941 ,  H03H7/427 ,  H03K5/1252 ,  H04B3/16 ,  H04L67/12

Abstract: A device for common mode (CM) clamping in wired communication includes a first circuit and a second circuit. The first circuit is configured to sense a voltage signal across clamp terminals and to generate an output voltage signal based on the sensed voltage signal. The second circuit is configured to compare the output voltage signal with a reference voltage, to generate a pair of current signals based on a result of the comparison, and to provide the pair of current signals to the clamp terminals. The pair of current signals includes a matched pair of CM current signals. The clamp terminals, upon coupling to nodes of a main circuit provide a desired CM impedance between the nodes of the main circuit. The device can be coupled to the main circuit in conjunction with one or more off-chip magnetic components.

Abstract translation: 用于有线通信中的共模（CM）钳位的装置包括第一电路和第二电路。 第一电路被配置为感测跨钳位端子的电压信号，并且基于感测的电压信号产生输出电压信号。 第二电路被配置为将输出电压信号与参考电压进行比较，以根据比较结果产生一对电流信号，并将该对电流信号提供给钳位端子。 该对电流信号包括一对匹配的CM电流信号。 夹紧端子在与主电路的节点耦合时，在主电路的节点之间提供期望的CM阻抗。 该装置可以与一个或多个片外磁性部件结合连接到主电路。