SLLA590
May 2022
THVD8000
,
THVD8010
Abstract
Trademarks
1
Introduction
2
THVD80x0 Devices Theory of Operation and Limitations of Use
2.1
Overview and Similarities between Standard RS-485 Transceivers and THVD80xo Devices
2.2
Differences between Standard RS-485 Transceivers and THVD8000/8010
2.3
Standard Approach to Using THVD80xo Devices to Communicate over Power Lines
2.4
Drawbacks to Standard Approach with Higher Voltage Systems
3
Integration of Line Driver with THVD80x0 Devices to Drive Low Impedance Loads
3.1
Overcoming Drive Strength Requirement with A Line Driver Amplifier
3.2
Modification to Typical System Signal Chain Path Through Integration of Line Driver
4
High Voltage Interface and Communication Interface Power Supply
4.1
Line Driver Output and Input RX signal Protection Circuit
4.2
High-Voltage Interface
4.3
Receive Path Optional Bandpass
5
System Level View and Relation to Higher Voltage Implementations
5.1
Powering the Powerline Communication System
5.2
System Overview with Selected Test Results
5.3
Changes to Design for Higher Voltage AC or DC Applications
6
Summary
7
References
3
Integration of Line Driver with THVD80x0 Devices to Drive Low Impedance Loads