SLUAB06
January 2025
AMC131M02
,
AMC3330
,
ISO7731
1
Abstract
Trademarks
1
Introduction
2
Topologies for Insulation Monitoring in ESS
2.1
Single Switch Topology
2.1.1
Test Steps
2.2
Dual Switch Floating Sampling Topology
2.2.1
Test Steps
2.3
Dual Switch Sampling in High Voltage Side Topology
2.4
AC Injection Topology
3
Comparison of Designs
3.1
Injection Resistance Influence on Accuracy
4
Capacitor Influence on Sampling Time
4.1
How to Choose Y Capacitor
4.2
Sampling Time
5
Key Devices
5.1
BQ79731-Q1
5.2
UCC33421-Q1
5.3
AMC131M02
5.4
AMC3330
5.5
ISO773x
6
Topos Simulation Result and Conclusion
7
Summary
8
References
Application Note
Insulation Resistance Detection Designs in GESS-BMS