STDA040
August 2026
BQ76907-Q1
1
Abstract
Trademarks
1
Introduction
2
E-latch System Architecture
3
Typical Design
3.1
Motor Drivers
3.2
Network Connection
3.3
Microcontroller
3.4
Backup Power
3.4.1
Discussion of Energy Requirements
3.4.1.1
Energy Needed By A Single Motor
3.4.1.2
Requirements for Multiple Motors
3.4.1.3
Usable energy stored
3.4.1.4
Derating the Capacitance
3.4.2
Charging Circuit
3.4.3
Discharging Circuit
3.4.4
Bidirectional Charge and Discharge Circuits
3.4.5
Cell Balancing Circuit
3.5
Position Sensors
4
Future Trends and Innovations
5
Conclusion
6
References
Technical White Paper
E-latch Design Overview