Abstract

The THVD8000 and THVD8010 are RS-485 Transceivers that use OOK modulation to transmit data over a power line by coupling the high frequency signal with either AC or DC power. However, the device cannot drive a power line with less than 375 ? and cannot take the direct high voltage signal on its communication pins. This proves to be a significant barrier when trying to use this device to communicate power over 110 V AC outlet. This barrier is not insurmountable and this application note will detail the process on how to use the THVD8000/THVD8010 in an application that can transfer data over a 110 V AC outlet as well as give a general guideline for higher voltage AC or DC systems.