graph LR
subgraph "高壓電池與主開關"
A["車載高壓電池包 \n 400-500VDC"] --> B["VBL18R20S \n 主直流母線開關 \n 800V/20A"]
B --> C["高壓直流母線 \n ~700VDC"]
D["預充電電阻"] --> E["VBL18R20S \n 預充電開關"]
A --> E
E --> C
end
subgraph "母線保護與緩衝"
C --> F["MOV浪湧吸收器"]
C --> G["放電管"]
C --> H["RC緩衝網路"]
F --> I["高壓地"]
G --> I
H --> I
B --> J["TVS箝位保護"]
J --> I
end
subgraph "控制與保護介面"
K["BMS電池管理系統"] --> L["故障信號"]
L --> M["保護邏輯"]
M --> N["關斷信號"]
N --> B
N --> E
O["域控制器"] --> P["使能信號"]
P --> B
P --> E
K --> Q["電壓/電流採樣"]
Q --> O
end
style B fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style E fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
雙向DC-DC變換器功率拓撲詳圖
graph TB
subgraph "LLC諧振變換拓撲"
A["高壓直流母線"] --> B["諧振電感Lr"]
B --> C["諧振電容Cr"]
C --> D["高頻變壓器初級"]
D --> E["變壓器磁芯"]
E --> F["初級側中心抽頭"]
subgraph "初級側全橋開關"
Q1["VBFB165R05SE \n 650V/5A"]
Q2["VBFB165R05SE \n 650V/5A"]
Q3["VBFB165R05SE \n 650V/5A"]
Q4["VBFB165R05SE \n 650V/5A"]
end
A --> Q1
Q1 --> F
Q2 --> F
F --> Q3
F --> Q4
Q3 --> G["初級地"]
Q4 --> G
end
subgraph "次級側與輸出"
E --> H["變壓器次級"]
subgraph "同步整流橋"
SR1["同步整流MOSFET"]
SR2["同步整流MOSFET"]
end
H --> SR1
H --> SR2
SR1 --> I["輸出濾波電感"]
SR2 --> J["輸出濾波電容"]
I --> J
J --> K["低壓直流輸出 \n 或岸電介面"]
end
subgraph "控制與驅動"
L["DSP數字控制器"] --> M["PWM信號發生器"]
M --> N["隔離驅動變壓器"]
N --> O["柵極驅動晶片"]
O --> Q1
O --> Q2
O --> Q3
O --> Q4
P["電流採樣電路"] --> L
Q["電壓回饋電路"] --> L
end
style Q1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style Q2 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能輔助負載管理拓撲詳圖
graph LR
subgraph "多通道高側P-MOS開關"
A["12V/24V輔助電源"] --> B["VBQA2101M通道1 \n -100V/-20A"]
A --> C["VBQA2101M通道2 \n -100V/-20A"]
A --> D["VBQA2101M通道3 \n -100V/-20A"]
A --> E["VBQA2101M通道4 \n -100V/-20A"]
end
subgraph "負載連接"
B --> F["冷卻水泵 \n 感性負載"]
C --> G["散熱風扇 \n 阻性負載"]
D --> H["液壓電機 \n 大電流感性"]
E --> I["照明系統 \n LED陣列"]
F --> J["低壓地"]
G --> J
H --> J
I --> J
end
subgraph "控制與保護"
K["域控制器GPIO"] --> L["電平轉換電路 \n 3.3V轉12V"]
L --> M["柵極驅動電阻"]
M --> B
M --> C
M --> D
M --> E
subgraph "保護元件"
N["續流二極體"] --> F
O["RC吸收電路"] --> H
P["電流檢測電阻"] --> B
Q["電流檢測電阻"] --> D
end
R["電流放大器"] --> S["比較器"]
P --> R
Q --> R
S --> T["故障鎖存"]
T --> U["關斷信號"]
U --> B
U --> D
end
subgraph "PCB熱設計"
V["大面積敷銅層"] --> B
V --> C
V --> D
V --> E
W["散熱過孔陣列"] --> V
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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