graph LR
subgraph "交错并联PFC拓扑"
A["三相380VAC输入"] --> B["EMI滤波器"]
B --> C["三相整流桥"]
C --> D["直流母线电容"]
D --> E["PFC电感L1"]
D --> F["PFC电感L2"]
E --> G["交错并联开关节点"]
F --> G
subgraph "PFC MOSFET阵列"
Q1["VBM16R32S \n 600V/32A"]
Q2["VBM16R32S \n 600V/32A"]
end
G --> Q1
G --> Q2
Q1 --> H["输出电容"]
Q2 --> H
H --> I["稳定高压输出 \n 540-600VDC"]
J["交错PFC控制器"] --> K["双通道栅极驱动器"]
K --> Q1
K --> Q2
I -->|电压反馈| J
end
subgraph "保护与吸收电路"
M["RCD缓冲电路"] --> Q1
N["RC吸收网络"] --> Q2
O["过压保护电路"] --> J
P["过流检测"] --> J
end
style Q1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q2 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
LLC谐振DC-DC变换级拓扑详图
graph TB
subgraph "LLC谐振半桥拓扑"
A["高压直流输入"] --> B["LLC谐振腔 \n Lr, Cr"]
B --> C["高频变压器初级"]
C --> D["半桥中点"]
subgraph "初级侧MOSFET对"
Q_H["VBL11515 \n 高边开关"]
Q_L["VBL11515 \n 低边开关"]
end
D --> Q_H
D --> Q_L
Q_H --> E["输入正极"]
Q_L --> F["初级地"]
G["LLC谐振控制器"] --> H["半桥栅极驱动器"]
H --> Q_H
H --> Q_L
end
subgraph "次级侧同步整流"
I["变压器次级"] --> J["同步整流MOSFET"]
K["VBL11515 \n 同步整流管"] --> L["输出滤波"]
L --> M["中间总线输出 \n 12V/48V/54V"]
N["同步整流控制器"] --> O["SR栅极驱动器"]
O --> K
M -->|输出电压反馈| G
end
subgraph "保护与监控"
P["过流检测"] --> G
Q["过温检测"] --> G
R["初级过压保护"] --> H
S["次级过压保护"] --> O
end
style Q_H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q_L fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style K fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
多相负载点(PoL)转换拓扑详图
graph LR
subgraph "四相Buck VRM拓扑"
A["中间总线输入 \n 12V"] --> B["输入电容阵列"]
B --> C["相位1电感"]
B --> D["相位2电感"]
B --> E["相位3电感"]
B --> F["相位4电感"]
subgraph "上桥MOSFET阵列"
Q_U1["上管1"]
Q_U2["上管2"]
Q_U3["上管3"]
Q_U4["上管4"]
end
subgraph "下桥MOSFET阵列"
Q_L1["VBGQA1300 \n 0.7mΩ"]
Q_L2["VBGQA1300 \n 0.7mΩ"]
Q_L3["VBGQA1300 \n 0.7mΩ"]
Q_L4["VBGQA1300 \n 0.7mΩ"]
end
C --> Q_U1
C --> Q_L1
D --> Q_U2
D --> Q_L2
E --> Q_U3
E --> Q_L3
F --> Q_U4
F --> Q_L4
Q_L1 --> G["输出电容阵列"]
Q_L2 --> G
Q_L3 --> G
Q_L4 --> G
G --> H["AI加速卡核心电源 \n 0.8-1.2V/数百A"]
I["数字多相控制器"] --> J["四相栅极驱动器"]
J --> Q_U1
J --> Q_U2
J --> Q_U3
J --> Q_U4
J --> Q_L1
J --> Q_L2
J --> Q_L3
J --> Q_L4
H -->|电压/电流/温度反馈| I
end
subgraph "热管理与布局"
K["一级液冷板"] --> Q_L1
K --> Q_L2
K --> Q_L3
K --> Q_L4
L["PCB内层大面积敷铜"] --> Q_L1
M["大量散热过孔"] --> Q_L1
N["温度传感器"] --> I
end
subgraph "栅极驱动优化"
O["开尔文连接布局"] --> Q_L1
P["低寄生电感设计"] --> J
Q["栅极保护电路"] --> Q_L1
end
style Q_L1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_L2 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_L3 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_L4 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
点击下载：VBL11515规格书
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