Advantech ADAMLink

The latest analog output cards from Advantech have a solution for the old problem of power glitches. Power glitches are a concern for sensitive electronics as they may damage circuits with their sudden high-voltage impulses. The figure below is an example of a power glitch.

Normally, analog output cards will produce a power glitch when they are powered on. In order to solve this problem, a relay can be placed on the channel between the analog output card and the receiving device. When the startup analog signals are sent, a short power glitch will be imposed in the signals. However, there will be a delay before the relay closes the loop. As a result, the signals that have a power glitch imposed on them will not be transferred to the designating device, as they will be stopped by the open loop at the relay. Once the signals are more stable, the delay will close the loop that allows the signals to pass on to the designating device.