TIDUEZ8C
december 2022 – june 2023
1
Description
Resources
Features
Applications
6
1
System Description
1.1
Insulation Monitoring
1.2
Impact of Parasitic Isolation Capacitance
1.3
IEC 61557-8 Standard for Industrial Low-Voltage Distribution Systems
1.4
Key System Specifications
2
System Overview
2.1
Block Diagram
2.2
Highlighted Products
2.2.1
TPSI2140
2.2.2
AMC3330
2.2.3
TPS7A24
2.2.4
REF2033
2.2.5
TLV6001
2.3
Design Considerations
2.3.1
Resistive Bridge
2.3.2
Isolated Analog Signal Chain
2.3.2.1
Differential to Single-Ended Conversion
2.3.2.2
High-Voltage Measurement
2.3.2.3
Signal Chain Error Analysis
2.3.3
Loss of PE Detection
2.3.4
Insulation Monitoring on AC Lines
2.3.5
PCB Layout Recommendations
3
Hardware, Software, Testing Requirements, and Test Results
3.1
Hardware Requirements
3.1.1
Connectors
3.1.2
Default Jumper Configuration
3.1.3
Prerequisites
3.2
Software Requirements
3.3
Software
3.4
Test Setup
3.5
Test Results
4
Design and Documentation Support
4.1
Design Files
4.1.1
Schematics
4.1.2
BOM
4.2
Documentation Support
4.3
Support Resources
4.4
Trademarks
5
About the Author
6
Revision History
Design Guide
AFE for Insulation Monitoring in High-Voltage EV Charging and Solar Energy Reference Design