graph TB
subgraph "PFC升压级"
A["三相/单相AC输入"] --> B["EMI滤波器"]
B --> C["整流桥"]
C --> D["PFC电感"]
D --> E["PFC开关节点"]
E --> F["VBPB15R14S \n 500V/14A"]
F --> G["高压直流母线"]
H["PFC控制器"] --> I["栅极驱动器"]
I --> F
G -->|电压反馈| H
end
subgraph "母线电压调节"
G --> J["母线电容组"]
J --> K["母线电压检测"]
K --> L["电压调节器"]
L --> M["驱动信号"]
M --> F
end
subgraph "保护电路"
N["退饱和检测"] --> F
O["过流检测"] --> F
P["RC吸收"] --> F
Q["TVS保护"] --> I
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
电池管理与DC-DC变换拓扑详图
graph LR
subgraph "电池侧Buck/Boost变换"
A["48V/96V电池组"] --> B["电池开关节点"]
B --> C["VBN1204N \n 200V/45A"]
C --> D["DC-DC电感"]
D --> E["高压直流母线"]
B --> F["VBN1204N \n 200V/45A"]
F --> G["电池地"]
H["DC-DC控制器"] --> I["栅极驱动器"]
I --> C
I --> F
A -->|电流反馈| H
end
subgraph "智能电池路径管理"
J["MCU控制信号"] --> K["电平转换电路"]
K --> L["VBA4317 \n 通道1输入"]
K --> M["VBA4317 \n 通道2输入"]
subgraph L ["VBA4317 双P-MOS 通道1"]
direction LR
IN1_1[栅极1]
IN2_1[栅极2]
S1_1[源极1]
S2_1[源极2]
D1_1[漏极1]
D2_1[漏极2]
end
subgraph M ["VBA4317 双P-MOS 通道2"]
direction LR
IN1_2[栅极1]
IN2_2[栅极2]
S1_2[源极1]
S2_2[源极2]
D1_2[漏极1]
D2_2[漏极2]
end
BATT_POS["电池正极"] --> D1_1
BATT_POS --> D1_2
S1_1 --> BATT_MOD1["电池模块1"]
S1_2 --> BATT_MOD2["电池模块2"]
BATT_MOD1 --> BATT_GND
BATT_MOD2 --> BATT_GND
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style L fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style M fill:#fff3e0,stroke:#ff9800,stroke-width:2px
逆变输出与热管理拓扑详图
graph TB
subgraph "全桥逆变拓扑"
A["高压直流母线"] --> B["逆变桥输入"]
B --> C["上桥臂开关节点"]
B --> D["下桥臂开关节点"]
subgraph "上桥臂开关"
Q_H1["VBN1204N \n 200V/45A"]
Q_H2["VBN1204N \n 200V/45A"]
end
subgraph "下桥臂开关"
Q_L1["VBN1204N \n 200V/45A"]
Q_L2["VBN1204N \n 200V/45A"]
end
C --> Q_H1
C --> Q_H2
D --> Q_L1
D --> Q_L2
Q_H1 --> E["输出滤波电感"]
Q_H2 --> E
Q_L1 --> F["逆变地"]
Q_L2 --> F
E --> G["输出滤波电容"]
G --> H["AC输出"]
end
subgraph "三级热管理系统"
I["一级: 强制风冷散热器"] --> Q_H1
I --> Q_H2
J["二级: 独立散热片"] --> Q_L1
J --> Q_L2
K["三级: PCB大面积敷铜"] --> L["控制IC"]
M["温度传感器阵列"] --> N["MCU"]
N --> O["风扇PWM控制"]
N --> P["温度监控"]
O --> Q["冷却风扇"]
end
subgraph "逆变保护网络"
R["过流检测"] --> S["比较器"]
S --> T["故障锁存"]
T --> U["关断信号"]
U --> Q_H1
U --> Q_L1
V["退饱和检测"] --> Q_H1
W["RC吸收"] --> Q_H1
W --> Q_L1
X["TVS阵列"] --> Y["驱动芯片"]
end
style Q_H1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q_L1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
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