公开(公告)号：US20230417805A1

公开(公告)日：2023-12-28

申请号：US18212156

申请日：2023-06-20

申请人： CYNTEC CO., LTD.

发明人： Tzu-Hao Hung ,  Shu-Wei Hsu

IPC分类号： G01R19/00 ,  G01R1/20 ,  G01R19/32 ,  G01R31/364

CPC分类号： G01R19/0092 ,  G01R1/203 ,  G01R19/32 ,  G01R31/364

摘要： A current sensing module includes a shunt resistor for receiving and sensing a current, a digital sensing circuit, and an analog sensing circuit. The shunt resistor includes a connecting part, a first resistive part and a second resistive part coupled in series to the first resistive part via the connecting part. The digital sensing circuit is coupled to the first resistive part for measuring a first analog voltage of the first resistive part when the current flows through the first resistive part, and providing a first digital measuring value associated with the first analog voltage. The analog sensing circuit is coupled to the second resistive part for measuring a second analog voltage of the second resistive part when the current flows through the second resistive part, and providing a second analog measuring value associated with the second analog voltage.

公开(公告)号：US11415601B2

公开(公告)日：2022-08-16

申请号：US16708349

申请日：2019-12-09

申请人： CYNTEC CO., LTD.

发明人： Tzu-Hao Hung ,  Ying-Da Luo

IPC分类号： G01R1/20 ,  G01R19/00 ,  H01C1/14 ,  H01C7/06

摘要： A resistor having low temperature coefficient of resistance includes a resistive part and two conductive parts connected to opposite sides of the resistive part. One conductive part has a through slot and a sensing portion between the through slot and the resistive part. The through slot has two inter-connected sections. Each section extends and ends with a closed end and has a parallel component, parallel to a main current direction defined on the resistor, and a perpendicular component, perpendicular to the main current direction. Another resistor having low temperature coefficient of resistance includes a resistive part and two conductive parts connected to two sides of the resistive part respectively. Each conductive part has a protrusion block, extending outward perpendicular to a main current direction defined on the resistor, and a sensing portion at the protrusion block.