公开(公告)号：US20250073450A1

公开(公告)日：2025-03-06

申请号：US18818054

申请日：2024-08-28

Applicant: IMEC VZW

Inventor： Chutham Sawigun ,  Carolina Mora Lopez ,  Xiaolin Yang ,  Joan Aymerich

IPC: A61N1/02 ,  A61N1/36 ,  H03F3/45

Abstract: The present disclosure provides a neuromodulation device that comprises at least one amplifier circuit that suppresses a common mode (CM) voltage signal in the input voltage signal. The amplifier circuit comprises an input stage to receive the input voltage signal, and a differential transconductor to provide an output current signal based on a DM voltage signal in the input voltage signal. The transconductor is provides a first CM voltage signal tapped after a non-inverting input, and a second CM voltage signal tapped after am inverting input, to CM amplifier of the amplifier circuit. The CM amplifier combines the first CM voltage signal with the second CM voltage signal, amplifies the combined CM voltage signal with an inverting gain, and provides the inverted CM voltage signal back to the non-inverting input and the inverting input of the transconductor for enabling the CM suppression.