公开(公告)号：US20230324245A1

公开(公告)日：2023-10-12

申请号：US18022382

申请日：2022-03-25

Applicant: Honor Device Co., Ltd.

Inventor： Yabin AN ,  Haiming HE ,  Mingyuan ZHAO

IPC: G01L9/06 ,  G01L9/00

CPC classification number: G01L9/065 ,  G01L9/0054

Abstract: A pressure sensor includes a Wheatstone bridge and a heat emitting diode. The Wheatstone bridge includes a first resistor, a second resistor, a third resistor, and a fourth resistor. The first resistor, the second resistor, the third resistor, and the fourth resistor are coupled to form a loop, the first resistor, the second resistor, and the third resistor are fixed resistors, and the fourth resistor is a varistor. A first output terminal of the Wheatstone bridge is coupled to a first terminal of the heat emitting diode, and a second output terminal of the Wheatstone bridge and a second terminal of the heat emitting diode are configured to output an electrical signal.