EVAL_800W_PSU_3P_P7 800W Server Power Supply Evaluation Board
800W server power supply evaluation board featuring CoolMOS P7, CCM PFC, and LLC stages with digital control using XMC1402 and XMC4200 microcontrollers.
Overview
This document details the design and performance of an 800W evaluation board for server power supplies (EVAL_800W_PSU_3P_P7). The architecture consists of a Continuous Conduction Mode (CCM) PFC stage followed by an LLC resonant DC/DC converter. It achieves peak efficiency over 96%, meeting Titanium standards at 230Vrms. The system employs digital control via the XMC1402 (PFC) and XMC4200 (LLC) microcontrollers. Key power components include CoolMOS P7 MOSFETs, 1EDI20N12AF and 2EDN7524F gate drivers, and BSC014N04LS for synchronous rectification. The document includes detailed control loop analysis, efficiency curves, Bode plots, and a bill of materials.
Use Cases
- High-efficiency server power supply design
- Industrial SMPS evaluation
- Telecom power system development
- Digital power control implementation using XMC microcontrollers
Topics
Referenced Parts
XMC4200-Q48K256 AB
Infineon
LLC Controller XMC4200-Q48K256 AB › Package: PG-LQFP-48
| 1EDI20N12AF | Infineon | 1x 1EDI20N12AF LLC HS Driver ... 1EDI20N12AF O-ring driver |
| 2EDN7524F | Infineon | 1x 2EDN7524F SyncRec Driver ... 1x 2EDN7524F PFC+LLC LS Driver |
| BSC009NE2LS5I | Infineon | BSC009NE2LS5I O-ring |
| BSC014N04LS | Infineon | BSC014N04LS SyncRec |
| ICE2QR2280G | Infineon | ICE2QR2280G Flyback-QR |
| XMC1402-Q040X0128AA | Infineon | PFC Controller XMC1402-Q040X0128AA › Package: PG-VQFN-40 |
| XMC4200-Q48K256 AB | Infineon | LLC Controller XMC4200-Q48K256 AB › Package: PG-LQFP-48 |