公开(公告)号：US12074577B2

公开(公告)日：2024-08-27

申请号：US17850359

申请日：2022-06-27

申请人： Renesas Design Technology Inc.

发明人： Vladyslav Kozlov ,  Dmytro Mymrikov

IPC分类号： H03H11/12 ,  H03G5/24

CPC分类号： H03H11/126 ,  H03G5/24 ,  H03H11/1291 ,  H03H2210/021

摘要： An active filter comprising an operational amplifier, and a controller configured to control the bandwidth of the operational amplifier based on a filter cutoff frequency setting and/or a noise performance setting.

公开(公告)号：US11929609B2

公开(公告)日：2024-03-12

申请号：US17736306

申请日：2022-05-04

申请人： Silego Technology Inc.

发明人： Der-Ju Hung ,  Yuan Wen Hsiao

IPC分类号： H02H9/02

CPC分类号： H02H9/02

摘要： A surge protection circuit is presented. The surge protection circuit includes an input port for receiving an input voltage; an energy release cell having a first terminal coupled to the input port, a second terminal coupled to ground, and a control terminal coupled to the input port via a first switch device and to the ground via a second switch device. The surge protection circuit is adapted to close the first switch device to enable a current to flow from the input port to ground through the release cell upon occurrence of a positive voltage surge and to close the second switch device to enable a current to flow from ground to the input port through the release cell upon occurrence of a negative voltage surge.