graph LR
subgraph "高壓固態繼電器架構"
A["三相整流輸出 \n ~540VDC"] --> B["SSR輸入端子"]
B --> C["高壓MOSFET陣列"]
subgraph C ["雙管串聯結構"]
direction TB
Q1["VBM18R06S \n 800V/6A"]
Q2["VBM18R06S \n 800V/6A"]
end
C --> D["SSR輸出端子"]
D --> E["主加熱器負載 \n (阻性/感性)"]
end
subgraph "隔離驅動電路"
F["PWM控制信號"] --> G["光耦隔離器"]
H["隔離電源 \n DC-DC"] --> I["驅動IC"]
G --> I
I --> J["柵極驅動電阻"]
J --> Q1
J --> Q2
end
subgraph "保護與緩衝"
K["RCD緩衝網路"] --> Q1
L["RC吸收電路"] --> Q2
M["TVS管陣列"] --> B
N["快速熔斷器"] --> A
end
subgraph "溫度監控"
O["絕緣導熱墊"] --> Q1
P["散熱器"] --> O
Q["NTC溫度感測器"] --> R["溫度監測IC"]
R --> S["過溫保護"]
end
style Q1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
迴圈風機三相驅動拓撲詳圖
graph TB
subgraph "三相逆變橋拓撲"
A["直流母線 \n 540VDC"] --> B["DC-LINK電容"]
B --> C["三相逆變橋"]
subgraph C ["六管三相橋"]
direction LR
U_H["VBMB1104NA \n 上管U"]
U_L["VBMB1104NA \n 下管U"]
V_H["VBMB1104NA \n 上管V"]
V_L["VBMB1104NA \n 下管V"]
W_H["VBMB1104NA \n 上管W"]
W_L["VBMB1104NA \n 下管W"]
end
U_H --> D["U相輸出"]
U_L --> D
V_H --> E["V相輸出"]
V_L --> E
W_H --> F["W相輸出"]
W_L --> F
U_L --> G["功率地"]
V_L --> G
W_L --> G
D --> H["三相迴圈風機"]
E --> H
F --> H
end
subgraph "三相驅動控制"
I["MCU PWM輸出"] --> J["三相預驅IC"]
J --> K["上管驅動電路"]
J --> L["下管驅動電路"]
K --> U_H
K --> V_H
K --> W_H
L --> U_L
L --> V_L
L --> W_L
end
subgraph "電流檢測與保護"
M["U相電流感測器"] --> N["電流檢測IC"]
O["V相電流感測器"] --> N
P["W相電流感測器"] --> N
N --> Q["過流比較器"]
Q --> R["故障封鎖"]
R --> J
end
subgraph "熱管理設計"
S["TO-220F封裝"] --> U_H
T["鋁基板散熱器"] --> S
U["強制風冷風扇"] --> T
V["NTC溫度監測"] --> W["風扇控制"]
W --> U
end
style U_H fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
輔助電源與閥門控制拓撲詳圖
graph LR
subgraph "高效率DC-DC輔助電源"
A["12V輸入電源"] --> B["輸入濾波"]
B --> C["同步降壓控制器"]
subgraph "同步整流功率級"
D["VBGQA1303 \n 高側開關"]
E["VBGQA1303 \n 低側開關"]
end
C --> F["高側驅動器"]
C --> G["低側驅動器"]
F --> D
G --> E
D --> H["輸出電感"]
E --> H
H --> I["輸出電容"]
I --> J["5V系統電源"]
end
subgraph "比例閥精密驅動"
K["AI控制信號"] --> L["PID控制器"]
L --> M["PWM調製器"]
M --> N["閥門驅動IC"]
subgraph "H橋驅動電路"
O["VBGQA1303 \n 左高側"]
P["VBGQA1303 \n 左低側"]
Q["VBGQA1303 \n 右高側"]
R["VBGQA1303 \n 右低側"]
end
N --> O
N --> P
N --> Q
N --> R
O --> S["比例閥線圈+"]
P --> T["比例閥線圈-"]
Q --> S
R --> T
end
subgraph "PCB散熱設計"
U["DFN8(5×6)封裝"] --> VBGQA1303
V["2oz厚銅PCB"] --> U
W["散熱過孔陣列"] --> V
X["散熱焊盤"] --> U
end
subgraph "電流精密檢測"
Y["高側電流檢測"] --> Z["差分放大器"]
AA["低側電流檢測"] --> Z
Z --> BB["ADC輸入"]
BB --> MCU["MCU"]
end
style VBGQA1303 fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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