Patent ID: 11881861
Assignee: INFINEON TECHNOLOGIES AG
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. An integrated circuit comprising:
a pulse modulation circuit having a pulse modulation (PM) output that is configured to provide a pulse width modulated (PWM) or pulse frequency modulated (PFM) signal;
an I/O pad including an I/O pad input and an I/O pad output, the I/O pad input coupled to the PM output and the I/O pad output configured to provide a modified PWM or PFM signal to a load circuit, the modified PWM or PFM signal based on the PWM or PFM signal; and
an asymmetry detection circuit having a first asymmetry detection (AD) input coupled to the PM output via a first feedback path, a second AD input coupled to I/O pad output via a second feedback path, and an AD output coupled to the pulse modulation circuit via a control path on which a control signal is provided to the pulse modulation circuit, the control signal being based on a difference between the first AD input and the second AD input and being operative to adjust the modified PWM or PFM signal.