公开(公告)号：US20200378798A1

公开(公告)日：2020-12-03

申请号：US16881624

申请日：2020-05-22

Applicant: Infineon Technologies AG

Inventor： Helmut KOECK ,  Ahsan ALI ,  Torsten ANDRE ,  Johannes JANSCHITZ

IPC: G01D5/14 ,  G01D5/16 ,  G01D18/00

Abstract: The present disclosure relates to a design for operating an angle sensor. A first sensor signal is output from a first sensor element on the basis of a magnetic field, which is dependent on an angle of rotation of a measurement object, at the location of the first sensor element. A second sensor signal is output from a second sensor element on the basis of the magnetic field that is dependent on the angle of rotation of the measurement object at the location of the second sensor element. During a calibration mode of the angle sensor, in which a rotation of the measurement object is performed, a first offset value of the first sensor signal, a second offset value of the second sensor signal and an amplitude correction value are determined on the basis of signal amplitudes of the first and second sensor signals. The first and second offset values ascertained during the calibration mode and the amplitude correction value are stored for use in an operating mode of the angle sensor.

公开(公告)号：US20250093904A1

公开(公告)日：2025-03-20

申请号：US18467955

申请日：2023-09-15

Applicant: Infineon Technologies AG

Inventor： Georg KAFFL ,  Benjamin KOLLMITZER ,  Ahsan ALI

IPC: G06F1/12 ,  G06F1/10

Abstract: An integrated circuit (IC) includes an internal clock source configured to generate an internal clock signal; a communication interface configured to receive an external clock signal from an external clock source and a communication frame signal that signals a communication frame during which data communication between the IC and the external clock source is enabled, wherein the external clock signal and the communication frame signal are received in parallel; and a clock monitoring circuit configured to monitor the internal clock signal based on the external clock signal. The clock monitoring circuit is configured to compare the internal clock signal and the external clock signal during the communication frame, and generate a timing error signal if a frequency of the internal clock signal does not satisfy a predetermined threshold relative to a frequency of the external clock signal.