2.1 Benefits of Phase-Shifted Full-Bridge with Current Doubler Rectification

The PSFB-CDR topology offers the following benefits:

• A constant frequency operation makes it easier to design input and output filters.
• Comparable component count to LLC.
• Wide input to output conversion range.
• Offers easier digital control loop implementation.
• Straight forward control of synchronous rectifiers.
• Easy to parallel two stages and control current sharing.
• Offers high efficiency and soft switching.
• The current doubler stage reduces current requirements for output inductors and transformer secondary side winding.