The development of mobile communication computers has been nearly 40 years since now.
In response to the power-saving requirements of 5G base station applications, a new high-efficiency Totem Pole design combining the full-bridge rectifier is proposed.
Compared with the traditional PFC, the conversion efficiency can be improved by 3% to 4%, which meets the energy-saving, cost-reducing, and system capacity-increasing requirements of 5G communication.
1. The Totem Pole architecture combined with the full-bridge rectifier PFC reduces rectifier diode losses and peripheral components.
2. Zero Current Detection (ZCD) CrM PFC operation improves efficiency.
3. The operation mechanism of Light load Discontinuous Conduction Mode (DCM) with Voltage Valley Conduction increases light load efficiency.
4. Built-in digital voltage loop controller increases dynamic response and bandwidth.
5. High-grade safety standards include Over-Voltage (OV), Over-Current (OC), Under-Voltage (UV), and Built-in Over-Temperature Protection (OTP).
6. It has PFC-OK signal supply and post-stage power sequence control.
7. High-grade driving capability: -500 mA / +800 mA.
