公开(公告)号：US20220190797A1

公开(公告)日：2022-06-16

申请号：US17644471

申请日：2021-12-15

Applicant: Infineon Technologies AG

Inventor： Mario MOTZ ,  Yongjia LI ,  Andrei-George ROMAN ,  Dragos VOCUREK

IPC: H03F3/387 ,  G01R33/07

Abstract: The present disclosure relates to chopper amplifier circuits featuring inherent chopper ripple suppression.

公开(公告)号：US20210181272A1

公开(公告)日：2021-06-17

申请号：US17117312

申请日：2020-12-10

Applicant: Infineon Technologies AG

Inventor： Yongjia LI ,  Umberto ARACRI ,  Mario MOTZ

IPC: G01R33/07 ,  H03F1/02 ,  G01R33/54

Abstract: Signal processing circuit for a Hall sensor and signal processing method. Signal processing circuits for four-phase spinning Hall magnetic field sensors, corresponding methods and corresponding magnetic field sensor apparatuses are provided. In this case, a correction signal (c) is generated on the basis of a first feedback signal (fb1) and a second feedback signal (fb2), wherein the first feedback signal (fb1) is provided with a shorter signal propagation time than the second feedback signal (fb2).