graph LR
subgraph "三相PFC升壓級"
A[三相380VAC輸入] --> B[EMI濾波器]
B --> C[三相整流橋]
C --> D[PFC電感]
D --> E[PFC開關節點]
E --> F["VBP16R20SFD \n 600V/20A"]
F --> G[400VDC母線]
H[PFC控制器] --> I[柵極驅動器]
I --> F
G -->|電壓回饋| H
end
subgraph "LLC諧振變換級"
G --> J[LLC諧振腔]
J --> K[高頻變壓器初級]
K --> L[LLC開關節點]
L --> M["VBP16R20SFD \n 600V/20A"]
M --> N[初級地]
O[LLC控制器] --> P[柵極驅動器]
P --> M
K -->|電流回饋| O
end
subgraph "輸出與保護"
LLC_TRANS["LLC變壓器次級"] --> R[同步整流]
R --> S[輸出濾波]
S --> T[12V直流輸出]
U[過壓保護] --> V[關斷電路]
V --> I
V --> P
W[過溫檢測] --> V
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style M fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
CPU/GPU VRM拓撲詳圖
graph TB
subgraph "多相降壓VRM架構"
A[12V輸入母線] --> B[相位1]
A --> C[相位2]
A --> D[相位3]
A --> E[相位4]
subgraph "每相功率級"
direction LR
F[上橋MOSFET]
G["VBMB1302A \n 下橋MOSFET"]
H[輸出電感]
F --> H
G --> H
end
B --> F1[上橋]
B --> G1["VBMB1302A"]
C --> F2[上橋]
C --> G2["VBMB1302A"]
D --> F3[上橋]
D --> G3["VBMB1302A"]
E --> F4[上橋]
E --> G4["VBMB1302A"]
G1 --> I[輸出並聯點]
G2 --> I
G3 --> I
G4 --> I
I --> J[輸出電容組]
J --> K[CPU/GPU供電]
L[多相控制器] --> M[驅動器陣列]
M --> F1
M --> G1
M --> F2
M --> G2
M --> F3
M --> G3
M --> F4
M --> G4
K -->|電壓回饋| L
end
subgraph "動態負載管理"
N[DVFS控制] --> L
O[負載電流檢測] --> L
P[溫度補償] --> L
end
style G1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G2 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
板級電源管理拓撲詳圖
graph LR
subgraph "智能負載開關通道"
A[BMC控制信號] --> B[電平轉換]
B --> C["VBBD8338控制"]
subgraph D ["VBBD8338 P-MOSFET"]
direction LR
IN[柵極]
S[源極]
DRAIN[漏極]
end
POWER_IN["12V輔助電源"] --> S
DRAIN --> E[負載輸出]
E --> F[負載設備]
G[過流檢測] --> H[比較器]
H --> I[故障信號]
I --> A
end
subgraph "熱插拔控制電路"
J["VBBD8338"] --> K[熱插拔槽位]
L[插入檢測] --> M[時序控制器]
M --> N[軟啟動控制]
N --> J
O[TVS保護] --> P[負載端]
P --> K
end
subgraph "電源時序管理"
Q[上電時序控制器] --> R[VBBD8338陣列]
R --> S1[CPU供電]
R --> S2[記憶體供電]
R --> S3[晶片組供電]
R --> S4[外設供電]
T[故障隔離] --> U[關斷信號]
U --> R
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style J fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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