Signal transmission device, electronic device, and vehicle

Abstract

A signal transmission device includes a first chip fed with an input pulse signal and a second chip that drives a switching device by generating an output pulse signal according to the input pulse signal through isolated communication with the first chip. The second chip includes a self-diagnosis circuit that checks whether individual parts of the second chip are operating properly in response to a self-diagnosis instruction transmitted from the first chip only when the output pulse signal is at a logic level corresponding to an off state.

Dependencies are inferred from the claim text.