graph LR
subgraph "高压DC-DC变换级"
A["400VDC输入"] --> B["LLC谐振腔"]
B --> C["高频变压器"]
C --> D["同步整流级"]
D --> E["48VDC输出"]
subgraph "高压侧开关"
Q1["VBL165R20S \n 650V/20A"]
Q2["VBL165R20S \n 650V/20A"]
end
subgraph "同步整流"
SR1["同步整流MOSFET"]
SR2["同步整流MOSFET"]
end
A --> Q1
A --> Q2
Q1 --> B
Q2 --> B
C --> SR1
C --> SR2
SR1 --> E
SR2 --> E
F["LLC控制器"] --> G["栅极驱动器"]
G --> Q1
G --> Q2
H["同步整流控制器"] --> I["同步整流驱动器"]
I --> SR1
I --> SR2
end
subgraph "保护与监控"
J["电流采样"] --> K["过流比较器"]
L["电压采样"] --> M["过压比较器"]
N["温度传感器"] --> O["过温检测"]
K --> P["故障锁存"]
M --> P
O --> P
P --> Q["保护关断"]
Q --> G
Q --> I
end
style Q1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
散热风机与天线舵机驱动拓扑详图
graph TB
subgraph "三相BLDC驱动桥"
A["48VDC输入"] --> B["预驱电源"]
B --> C["栅极驱动器"]
subgraph "上桥臂"
UH["VBNC1303 \n 30V/98A"]
VH["VBNC1303 \n 30V/98A"]
WH["VBNC1303 \n 30V/98A"]
end
subgraph "下桥臂"
UL["VBNC1303 \n 30V/98A"]
VL["VBNC1303 \n 30V/98A"]
WL["VBNC1303 \n 30V/98A"]
end
A --> UH
A --> VH
A --> WH
UH --> D["U相输出"]
VH --> E["V相输出"]
WH --> F["W相输出"]
UL --> GND
VL --> GND
WL --> GND
C --> UH
C --> VH
C --> WH
C --> UL
C --> VL
C --> WL
end
subgraph "电机负载"
D --> H["散热风机(BLDC)"]
E --> I["天线舵机(BLDC)"]
F --> J["备用风机(BLDC)"]
end
subgraph "保护与吸收"
K["TVS阵列"] --> D
K --> E
K --> F
L["RC吸收网络"] --> UH
L --> VH
L --> WH
M["电流采样"] --> N["过流保护"]
N --> O["故障关断"]
O --> C
end
subgraph "控制接口"
P["MCU PWM"] --> Q["死区控制"]
R["霍尔反馈"] --> S["位置检测"]
S --> T["换相逻辑"]
T --> C
Q --> C
end
style UH fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
高压配电与智能保护拓扑详图
graph LR
subgraph "高压配电网络"
A["400VDC母线"] --> B["主配电开关"]
B --> C["服务器电源支路"]
B --> D["电机驱动支路"]
B --> E["通信设备支路"]
B --> F["备用电源支路"]
subgraph "智能负载开关"
SW1["VBMB18R11SE \n 800V/11A"]
SW2["VBMB18R11SE \n 800V/11A"]
SW3["VBMB18R11SE \n 800V/11A"]
SW4["VBMB18R11SE \n 800V/11A"]
end
C --> SW1
D --> SW2
E --> SW3
F --> SW4
SW1 --> G["服务器负载"]
SW2 --> H["电机负载"]
SW3 --> I["通信负载"]
SW4 --> J["备用负载"]
end
subgraph "智能控制与保护"
K["主控MCU"] --> L["隔离驱动器"]
L --> SW1
L --> SW2
L --> SW3
L --> SW4
subgraph "监测电路"
M["电流传感器"]
N["电压传感器"]
O["温度传感器"]
end
M --> P["过流检测"]
N --> Q["过压/欠压检测"]
O --> R["过温检测"]
P --> S["故障逻辑"]
Q --> S
R --> S
S --> T["保护动作"]
T --> L
end
subgraph "吸收与保护"
U["RC缓冲电路"] --> SW1
U --> SW2
V["TVS保护"] --> SW1
V --> SW2
W["续流二极管"] --> SW1
W --> SW2
end
subgraph "状态反馈"
X["开关状态"] --> Y["状态指示"]
Z["故障标志"] --> AA["故障存储"]
Y --> K
AA --> K
end
style SW1 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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