FSP Technology EP450 series - Active Clamp

Page 15 of 26 Rev. A
7 Active Clamp
The purpose of Clamp is to pull down the output voltage while two sets of Inverter MOSFET
are OFF. The Clamp effect is active during the period of 0Vac at battery mode. CLAMP
principle is shown in the last paragraph of Chapter 6 Inverter Operation.