graph TB
subgraph "高压输入与保护"
A["800V电池输入"] --> B["输入滤波与保护"]
B --> C["共模电感与X电容"]
C --> D["母线电容"]
end
subgraph "LLC谐振变换器拓扑"
D --> E["VBL19R09S \n 高压半桥上管"]
D --> F["VBL19R09S \n 高压半桥下管"]
E --> G["谐振电感Lr"]
F --> G
G --> H["谐振电容Cr"]
H --> I["高频变压器初级"]
I --> J["变压器磁芯与绕组"]
subgraph "次级侧同步整流"
J --> K["同步整流MOSFET"]
K --> L["输出滤波电感"]
L --> M["输出滤波电容"]
M --> N["12V/24V输出"]
end
end
subgraph "控制与反馈"
O["LLC谐振控制器"] --> P["高压隔离驱动器"]
P --> E
P --> F
Q["同步整流控制器"] --> R["次级侧驱动器"]
R --> K
S["输出电压采样"] --> T["误差放大器"]
T --> O
U["初级电流检测"] --> V["电流保护电路"]
V --> O
W["变压器温度检测"] --> X["过热保护"]
X --> O
end
subgraph "安全隔离设计"
Y["初级地"] -- "加强绝缘" --> Z["次级地"]
AA["原边控制器"] -- "隔离通信" --> BB["副边控制器"]
CC["安规电容"] --> Y
CC --> Z
end
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
辅助电机驱动拓扑详图
graph LR
subgraph "三相逆变桥功率级"
A["24V辅助电源"] --> B["输入电容"]
B --> C["VBGL1103 U相上管"]
B --> D["VBGL1103 V相上管"]
B --> E["VBGL1103 W相上管"]
C --> F["U相输出"]
D --> G["V相输出"]
E --> H["W相输出"]
I["VBGL1103 U相下管"] --> J["功率地"]
K["VBGL1103 V相下管"] --> J
L["VBGL1103 W相下管"] --> J
F --> I
G --> K
H --> L
end
subgraph "电机负载连接"
F --> M["电子水泵 \n 三相电机"]
G --> M
H --> M
F --> N["电子油泵 \n 三相电机"]
G --> N
H --> N
end
subgraph "驱动与控制电路"
O["电机控制MCU"] --> P["三相预驱动器"]
P --> Q["U相栅极驱动"]
P --> R["V相栅极驱动"]
P --> S["W相栅极驱动"]
Q --> C
Q --> I
R --> D
R --> K
S --> E
S --> L
T["相电流检测"] --> U["电流采样电路"]
U --> O
V["位置传感器"] --> W["解码电路"]
W --> O
end
subgraph "散热管理"
X["液冷散热板"] --> C
X --> D
X --> E
X --> I
X --> K
X --> L
Y["温度传感器"] --> Z["温度监控"]
Z --> O
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
高压智能配电单元拓扑详图
graph TB
subgraph "高压配电输入"
A["400V电池正极"] --> B["主熔断器"]
B --> C["接触器/继电器"]
C --> D["高压直流母线"]
D --> E["母线电容"]
end
subgraph "智能负载开关通道"
subgraph "PTC加热器通道"
F["VBQA2157N \n P-MOS开关"] --> G["输出滤波"]
G --> H["电流检测"]
H --> I["PTC加热器负载"]
end
subgraph "电池加热通道"
J["VBQA2157N \n P-MOS开关"] --> K["输出滤波"]
K --> L["电流检测"]
L --> M["电池加热膜"]
end
subgraph "充电唤醒通道"
N["VBQA2157N \n P-MOS开关"] --> O["输出滤波"]
O --> P["电流检测"]
P --> Q["充电接口电路"]
end
subgraph "备用负载通道"
R["VBQA2157N \n P-MOS开关"] --> S["输出滤波"]
S --> T["电流检测"]
T --> U["备用高压负载"]
end
D --> F
D --> J
D --> N
D --> R
end
subgraph "控制与隔离接口"
V["域控制器GPIO"] --> W["电平转换电路"]
W --> X["光耦隔离器"]
X --> Y["栅极驱动电路"]
Y --> F
Y --> J
Y --> N
Y --> R
Z["负载状态反馈"] --> AA["隔离ADC"]
AA --> V
end
subgraph "保护电路"
AB["RC吸收网络"] --> F
AC["RC吸收网络"] --> J
AD["TVS保护"] --> F
AE["TVS保护"] --> J
AF["过流比较器"] --> AG["故障锁存"]
AG --> AH["关断信号"]
AH --> Y
end
subgraph "PCB热设计"
AI["DFN8底部焊盘"] --> AJ["大面积铜层"]
AJ --> AK["散热过孔阵列"]
AK --> AL["金属外壳"]
end
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style J fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style N fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style R fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBQA2157N规格书
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