SDAA262
January 2026
TMS320F28P659DK-Q1
1
Abstract
Trademarks
1
Introduction
1.1
Voltage Stress on Synchronous Rectifier
1.2
Snubber Circuit Overview
1.2.1
RC Snubber
1.2.2
RCD Snubber
1.2.3
Diode Clamping
1.2.4
Active Clamping
2
Active Clamping Circuit
2.1
Different Types of ACL Circuits
2.1.1
Difference Placement of ACL
2.1.2
PMOS Type and NMOS Type
2.2
Hardware Design of ACL Circuit
2.2.1
Clamping Capacitor
2.2.2
Power Switches
2.2.3
Gate Driver
2.3
Software Design of ACL Circuit
2.3.1
Turn-on Delay
2.3.2
Turn-on Duration
3
Summary
4
References
Application Note
Design Considerations of Active Clamping Circuit in Full Bridge Converter