Digital Output Module

Abstract: A digital output (DO) module (2) to be applied for control purposes in a vehicle, such as a railway vehicle, and comprising two galvanically isolated inputs, configured to receive a DO power control signal (4) and a DO control signal (8), respectively, and one galvanically isolated feedback signal output, configured to provide a DO feedback signal (6). The DO module (2) further comprises a driver stage unit (10) to provide electrical state control to a DO switch (12) being configured to be in a conductive state or a non- conductive state. the driver stage unit (10) is configured to receive said DO power control signal (4) and said DO control signal (8), and to generate an active driver signal (14) to be supplied to the DO switch (12) that is adapted to control the conductive state of a DO output (16) upon receipt of said active driver signal (14), wherein said galvanically isolated feedback signal output is connected to said DO output (16). The DO module (2) also comprises a control unit (18). The driver stage unit (10) is configured to generate an active driver signal (14) only if both the DO power control signal (4) and the DO control signal (8) are in their active states "1" at the same time, and wherein said DO feedback signal (6) indicates the state of the DO switch (12).

Patent Information

Applicants

Inventors

Specification

Documents

Application Documents