AN2131催功率3相辅助电源的设计基于L5991 ESBT STC08DE150的

AN2131催功率3相辅助电源的设计基于L5991 ESBT STC08DE150的

AN2131
APPLICATION NOTE
HIGH POWER 3-PHASE AUXILIARY POWER SUPPLY DESIGN
BASED ON L5991 AND ESBT STC08DE150

1. INTRODUCTION triangle which drops to zero before the next turn-
on.
This application note deals with the design of a 3- In the continuous mode, shown in figure 3, the
Phase auxiliary power supply for 150W dual primary current iT has a front-end step and the
output SMPS, using the L5991 PWM driver and characteristic appearance of a rising ramp on a
the STC08DE150 ESBT as main switch. The step. Du