graph LR
subgraph "三相两电平逆变拓扑"
A["高压直流母线 \n 800-1000VDC"] --> B["直流母线电容"]
B --> C["A相上桥臂"]
B --> D["B相上桥臂"]
B --> E["C相上桥臂"]
C --> F["VBM195R06 \n 950V/6A"]
D --> G["VBM195R06 \n 950V/6A"]
E --> H["VBM195R06 \n 950V/6A"]
F --> I["A相输出"]
G --> J["B相输出"]
H --> K["C相输出"]
I --> L["A相下桥臂"]
J --> M["B相下桥臂"]
K --> N["C相下桥臂"]
L --> O["VBM195R06 \n 950V/6A"]
M --> P["VBM195R06 \n 950V/6A"]
N --> Q["VBM195R06 \n 950V/6A"]
O --> R[直流母线负极]
P --> R
Q --> R
end
subgraph "隔离驱动与保护"
S["主控DSP"] --> T["隔离驱动芯片"]
T --> F
T --> G
T --> H
T --> O
T --> P
T --> Q
U["过流检测"] --> V["快速比较器"]
V --> W["故障锁存"]
W --> X["关断信号"]
X --> T
Y["RCD吸收电路"] --> F
Z["RC缓冲电路"] --> O
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style O fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
DC/DC双向变换单元拓扑详图
graph TB
subgraph "双向Buck-Boost变换器"
A["电池侧 \n 48-800VDC"] --> B["输入滤波电容"]
B --> C["主电感"]
C --> D["高压侧开关节点"]
D --> E["VBL16R31SFD \n 600V/31A"]
E --> F["高压直流母线 \n 800-1000VDC"]
D --> G["VBL16R31SFD \n 600V/31A"]
G --> H["电池侧地"]
F --> I["低压侧开关节点"]
I --> J["VBL16R31SFD \n 600V/31A"]
J --> C
I --> K["VBL16R31SFD \n 600V/31A"]
K --> H
end
subgraph "同步整流控制"
L["DC/DC控制器"] --> M["半桥驱动器"]
M --> E
M --> G
M --> J
M --> K
N["电流检测"] --> O["电流环控制"]
O --> L
P["电压检测"] --> Q["电压环控制"]
Q --> L
end
subgraph "热管理设计"
R["散热器"] --> E
R --> G
S["温度传感器"] --> T["温度监控"]
T --> U["风扇控制"]
U --> V["冷却风扇"]
end
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
辅助电源与保护电路拓扑详图
graph LR
subgraph "辅助开关电源(SMPS)"
A["AC/DC输入"] --> B["输入整流滤波"]
B --> C["反激变压器初级"]
C --> D["VBJ1695IN \n 60V/4.5A"]
D --> E[初级地]
F["PWM控制器"] --> G["驱动电路"]
G --> D
H["反激变压器次级"] --> I["同步整流节点"]
I --> J["VBJ1695IN \n 60V/4.5A"]
J --> K["输出滤波"]
K --> L["辅助电源输出 \n 12V/24V/48V"]
end
subgraph "负载开关与保护"
L --> M["VBJ1695IN负载开关1"]
L --> N["VBJ1695IN负载开关2"]
L --> O["VBJ1695IN负载开关3"]
M --> P["BMS供电"]
N --> Q["通信模块"]
O --> R["散热风扇"]
S["MCU控制"] --> T["电平转换"]
T --> M
T --> N
T --> O
end
subgraph "系统保护电路"
U["过流检测"] --> V["比较器"]
W["过压检测"] --> X["比较器"]
Y["温度检测"] --> Z["比较器"]
V --> AA["或门逻辑"]
X --> AA
Z --> AA
AA --> AB["关断控制"]
AB --> G
AB --> T
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style J fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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