graph LR
subgraph "三相全桥电机驱动"
A["52V电池输入"] --> B["直流母线电容"]
B --> C["三相逆变桥"]
subgraph C ["VBGQT3401 MOSFET桥臂"]
direction TB
Q_UH["上管U相"]
Q_UL["下管U相"]
Q_VH["上管V相"]
Q_VL["下管V相"]
Q_WH["上管W相"]
Q_WL["下管W相"]
end
C --> D["电机三相输出"]
D --> E["无刷直流电机"]
F["电机控制器"] --> G["栅极驱动器"]
G --> Q_UH
G --> Q_UL
G --> Q_VH
G --> Q_VL
G --> Q_WH
G --> Q_WL
end
subgraph "驱动保护与检测"
H["电流采样电阻"] --> I["差分放大器"]
I --> J["过流比较器"]
J --> K["故障保护"]
K --> F
L["霍尔传感器"] --> F
M["温度传感器"] --> F
N["RC缓冲电路"] --> Q_UH
N --> Q_UL
end
style Q_UH fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q_UL fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
高压泵与散热系统驱动拓扑详图
graph LR
subgraph "升压与高压泵驱动"
A["52V直流输入"] --> B["升压变换器"]
subgraph B ["Boost升压级"]
direction LR
BOOST_INDUCTOR["升压电感"]
BOOST_SWITCH["VBP19R25S"]
BOOST_DIODE["快恢复二极管"]
end
B --> C["400V直流母线"]
C --> D["三相逆变器"]
subgraph D ["高压泵驱动桥臂"]
Q_PUMP_H1["VBP19R25S"]
Q_PUMP_L1["VBP19R25S"]
Q_PUMP_H2["VBP19R25S"]
Q_PUMP_L2["VBP19R25S"]
Q_PUMP_H3["VBP19R25S"]
Q_PUMP_L3["VBP19R25S"]
end
D --> E["高压泵电机"]
F["泵控制器"] --> G["高压栅极驱动器"]
G --> Q_PUMP_H1
G --> Q_PUMP_L1
G --> Q_PUMP_H2
G --> Q_PUMP_L2
G --> Q_PUMP_H3
G --> Q_PUMP_L3
end
subgraph "散热风扇驱动"
H["12V辅助电源"] --> I["半桥驱动器"]
I --> J["VBP19R25S上管"]
I --> K["VBP19R25S下管"]
J --> L["风扇电机"]
K --> L
M["PWM控制器"] --> I
N["温度反馈"] --> M
end
style BOOST_SWITCH fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_PUMP_H1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style J fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能负载管理拓扑详图
graph LR
subgraph "智能喷阀控制通道"
A["MCU GPIO"] --> B["电平转换电路"]
B --> C["VBA1402控制输入"]
subgraph C ["VBA1402双N-MOS"]
direction TB
GATE["栅极控制"]
SOURCE["源极输出"]
DRAIN["漏极接电源"]
end
D["12V电源"] --> DRAIN
SOURCE --> E["喷阀电磁阀"]
E --> F["续流二极管"]
F --> GND["地"]
H["电流检测"] --> I["过流保护"]
I --> J["故障反馈"]
J --> A
end
subgraph "分布式电源管理网络"
K["主MCU"] --> L["CAN总线"]
L --> M["节点控制器1"]
L --> N["节点控制器2"]
L --> O["节点控制器3"]
M --> P["VBA1402阵列"]
N --> Q["VBA1402阵列"]
O --> R["VBA1402阵列"]
P --> S["局部负载群1"]
Q --> T["局部负载群2"]
R --> U["局部负载群3"]
end
subgraph "保护与诊断"
V["电压监控"] --> K
W["温度监控"] --> K
X["负载电流监测"] --> K
Y["故障记录存储器"] --> K
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style P fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与环境防护拓扑详图
graph LR
subgraph "三级热管理系统架构"
subgraph "一级散热: 主驱动MOSFET"
A["金属机壳"] --> B["导热界面材料"]
B --> C["VBGQT3401 TOLL封装"]
D["行进气流"] --> A
end
subgraph "二级散热: 高压驱动MOSFET"
E["铝制散热器"] --> F["防腐蚀涂层"]
F --> G["VBP19R25S TO-247"]
H["系统风道"] --> E
end
subgraph "三级散热: 控制芯片"
I["PCB厚铜层"] --> J["散热过孔阵列"]
J --> K["VBA1402 SOP8"]
L["密封舱体对流"] --> I
end
M["温度传感器网络"] --> N["热管理MCU"]
N --> O["风扇PWM控制"]
N --> P["泵速控制"]
O --> Q["冷却风扇"]
P --> R["液冷泵(可选)"]
end
subgraph "环境防护设计"
S["IP67密封舱体"] --> T["三防漆涂层"]
U["密封连接器"] --> V["线缆屏蔽"]
W["疏水涂层"] --> X["凝露导流槽"]
Y["防尘过滤网"] --> Z["强制风冷入口"]
end
subgraph "振动与冲击防护"
AA["减震安装"] --> BB["功率器件"]
CC["灌封材料"] --> DD["控制电路"]
EE["紧固件锁固"] --> FF["所有连接点"]
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBGQT3401规格书
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