graph LR
subgraph "輸入整流與濾波"
A["市電輸入 \n 85-265VAC"] --> B["EMI濾波器"]
B --> C["全橋整流"]
C --> D["直流母線電容"]
D --> E["直流母線 \n ~310VDC(峰值)"]
end
subgraph "反激變換器主功率級"
E --> F["VBQF1154N \n 主開關管 \n 150V/25.5A"]
F --> G["高頻變壓器 \n 初級"]
G --> H["初級地"]
I["PWM控制器"] --> J["柵極驅動器"]
J --> F
G --> K["變壓器次級"]
K --> L["輸出整流"]
L --> M["輸出濾波"]
M --> N["主直流母線 \n 12V/24V"]
N --> O["輔助電源 \n 5V/3.3V"]
end
subgraph "保護電路"
P["RCD鉗位電路"] --> F
Q["TVS保護"] --> F
R["過流檢測"] --> I
end
style F fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
主加熱器功率控制拓撲詳圖
graph TB
subgraph "主加熱器驅動電路"
A["主直流母線 \n 12V/24V"] --> B["電流檢測電阻"]
B --> C["VBQF2314 \n P-MOSFET \n -30V/-50A"]
C --> D["主加熱器 \n (電阻式/IH線圈)"]
D --> E["地"]
end
subgraph "PWM控制回路"
F["MCU"] --> G["PWM發生器"]
G --> H["柵極驅動器"]
H --> C
I["溫度感測器"] --> J["ADC"]
J --> F
K["壓力感測器"] --> J
end
subgraph "保護與緩衝"
L["RC緩衝網路"] --> C
M["TVS鉗位"] --> C
N["過溫保護"] --> O["比較器"]
O --> P["故障鎖存"]
P --> H
end
subgraph "熱管理"
Q["散熱器"] --> C
R["PCB大面積敷銅"] --> C
S["溫度監控"] --> F
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
輔助功能電源管理拓撲詳圖
graph LR
subgraph "VBA4625雙路P-MOS負載開關"
subgraph "晶片內部結構"
A["通道1柵極"]
B["通道2柵極"]
C["通道1源極"]
D["通道2源極"]
E["公共漏極"]
end
end
subgraph "控制電路"
F["MCU GPIO"] --> G["電平轉換"]
G --> A
G --> B
end
subgraph "負載連接"
H["主直流母線 \n 12V/24V"] --> E
C --> I["保溫片負載"]
D --> J["顯示/通信負載"]
I --> K["地"]
J --> K
end
subgraph "保護電路"
L["柵極RC濾波"] --> A
L --> B
M["負載過流檢測"] --> N["保護邏輯"]
N --> F
O["TVS保護"] --> I
O --> J
end
subgraph "智能管理"
P["烹飪階段檢測"] --> F
Q["功耗優化演算法"] --> F
R["故障隔離"] --> F
end
style A fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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