Switching Power Supply Types & Recommended Power MOSFETs Map

Application Example

(1) Flyback

• For low-output use (up to 150W)
• few externally-conneted parts required
• 1 MOSFET is used for switching

(2) Forward

• Usable for small~large ouput (100 to 300W)
• Several switching MOSFETs can be used in parallel
• Several switching MOSFETs can be used

(3) Half-Bridge

• For middle output (300 to 400W)
• MOSFET with a lower voltage than flyback or forward voltage can be used
• 2 switching MOSFETs are used

(4) Full-Bridge

• For high output (at least 300W)
• MOSFET with a lower voltage than flyback or forward voltage can be used
• 4 switching MOSFETs are used