graph LR
subgraph "电池组主放电路径"
A["14串锂离子电池 \n 51.8V标称"] --> B["BMS保护电路"]
B --> C["VBQF1202主开关 \n 2mΩ@10V"]
C --> D["电池输出正极"]
E["BMS控制器"] --> F["驱动电路"]
F --> C
D -->|电流检测| E
end
subgraph "主动均衡拓扑"
subgraph "电池单元"
CELL1["电芯1"]
CELL2["电芯2"]
CELL14["电芯14"]
end
CELL1 --> G1["均衡开关1"]
CELL2 --> G2["均衡开关2"]
CELL14 --> G14["均衡开关14"]
G1 --> H["VBQF1202 \n 均衡开关"]
G2 --> H
G14 --> H
H --> I["均衡能量转移 \n 电感/电容"]
I --> J["均衡控制器"]
J --> H
K["温度传感器"] --> E
end
subgraph "热管理与保护"
L["PCB大面积敷铜"] --> C
L --> H
M["过流保护电路"] --> C
N["电压监控点"] --> E
end
style C fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
DC-AC逆变前级升压拓扑详图
graph TB
subgraph "升压变换器拓扑"
A["电池输入 \n 51.8V"] --> B["输入滤波电容"]
B --> C["升压电感"]
C --> D["开关节点"]
D --> E["VBI1202K \n 200V/1A"]
E --> F["升压控制器"]
F --> G["栅极驱动器"]
G --> E
E --> H["输出整流二极管"]
H --> I["高压滤波电容 \n ~400VDC"]
I --> J["高压直流母线"]
K["电压反馈"] --> F
L["电流检测"] --> F
end
subgraph "电气保护网络"
M["RCD缓冲电路"] --> D
N["TVS阵列"] --> J
O["栅极保护网络"] --> E
subgraph O["栅极保护"]
direction LR
P["串联电阻"]
Q["下拉电阻"]
R["TVS二极管"]
end
end
subgraph "热管理设计"
S["SOT89散热焊盘"] --> E
T["PCB热过孔"] --> S
U["环境气流"] --> E
end
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
多路负载智能分配拓扑详图
graph LR
subgraph "集成双通道负载开关"
A["主控MCU GPIO"] --> B["电平转换电路"]
B --> C["VB4610N输入控制"]
subgraph C ["VB4610N 双P-MOS"]
direction TB
IN1["栅极控制1"]
IN2["栅极控制2"]
S1["源极1"]
S2["源极2"]
D1["漏极1"]
D2["漏极2"]
end
VCC_IN["12V/24V输入"] --> S1
VCC_IN --> S2
D1 --> E["USB-A输出"]
D2 --> F["车充口输出"]
G["电流检测芯片"] --> E
G --> F
G --> H["MCU ADC"]
H --> A
end
subgraph "输出保护与滤波"
E --> I["过流保护"]
F --> J["过压保护"]
K["输出滤波电容"] --> E
K --> F
L["续流二极管"] --> E
M["TVS保护"] --> F
end
subgraph "负载管理功能"
N["软启动控制"] --> A
O["顺序上电逻辑"] --> A
P["故障诊断"] --> H
Q["负载状态指示"] --> A
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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