graph LR
subgraph "多相VRM架构"
A[12V输入] --> B[输入电容]
B --> C[多相控制器]
C --> D[栅极驱动器]
subgraph "同步Buck转换级"
direction TB
E["VBN1302 \n 上管"]
F["VBN1302 \n 下管"]
end
D --> E
D --> F
E --> G[开关节点]
G --> H[输出电感]
F --> I[下管地]
H --> J[输出电容]
J --> K[核心电压输出]
K --> L[CPU/GPU负载]
M[电压反馈] --> C
N[电流检测] --> C
end
subgraph "驱动与布局优化"
O[专用驱动器] --> P[栅极电阻]
P --> Q[开尔文连接]
R[厚铜层设计] --> S[散热过孔阵列]
T[电流采样网络] --> U[差分对布线]
end
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
多电压轨POL转换与智能配电拓扑详图
graph TB
subgraph "同步Buck POL转换器"
A[12V输入] --> B[POL控制器]
B --> C[栅极驱动]
subgraph "VB3222双N-MOSFET"
direction LR
D[上管]
E[下管]
end
C --> D
C --> E
D --> F[开关节点]
F --> G[输出电感]
E --> H[下管地]
G --> I[输出电容]
I --> J[POL输出电压]
J --> K[板载负载]
end
subgraph "智能配电与保护"
L[PMBus接口] --> M[数字控制器]
M --> N[使能控制]
M --> O[电压设定]
M --> P[电流限制]
Q[故障检测] --> R[保护逻辑]
R --> S[关断控制]
S --> B
T[温度传感器] --> U[过温保护]
end
subgraph "板级热管理"
V[PCB内层铜箔] --> W[热过孔]
X[系统风道] --> Y[对流散热]
Z[SOT23-6封装] --> AA[小型化布局]
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style E fill:#fff3e0,stroke:#ff9800,stroke-width:2px
高压输入侧保护与冗余切换拓扑详图
graph LR
subgraph "冗余电源OR-ing电路"
A[电源1输入] --> B["VBP165R38SFD \n OR-ing管1"]
C[电源2输入] --> D["VBP165R38SFD \n OR-ing管2"]
B --> E[公共输出总线]
D --> E
F[快速比较器] --> G[驱动电路]
G --> B
G --> D
H[电流检测] --> I[故障判断]
I --> J[切换控制]
J --> F
end
subgraph "PFC功率因数校正"
K[交流输入] --> L[整流桥]
L --> M[PFC电感]
M --> N[PFC控制器]
subgraph "PFC开关管"
O["VBP165R38SFD \n PFC MOSFET"]
end
N --> P[PFC驱动器]
P --> O
O --> Q[高压直流输出]
end
subgraph "保护与缓冲网络"
R[RC吸收电路] --> O
S[TVS阵列] --> T[栅极保护]
U[共模电感] --> V[EMI滤波]
W[过压锁存] --> X[快速关断]
Y[热插拔控制] --> Z[软启动]
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style O fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
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