graph TB
subgraph "加熱控制回路"
A["直流母線 \n ~310VDC"] --> B["DC-DC降壓"]
B --> C["加熱電源 \n 24VDC"]
C --> D["VBQF2205 \n P-MOSFET"]
D --> E["加熱管負載"]
E --> F["加熱回路地"]
G["MCU PWM輸出"] --> H["電平轉換電路"]
H --> I["柵極驅動"]
I --> D
J["電流檢測電阻"] --> K["運放調理電路"]
K --> L["ADC輸入"]
L --> G
end
subgraph "保護與優化電路"
M["RC吸收網路"] --> D
N["TVS保護管"] --> I
O["溫度感測器"] --> P["ADC通道"]
P --> G
Q["過流比較器"] --> R["故障鎖存"]
R --> S["緊急關斷"]
S --> I
end
subgraph "熱管理介面"
T["PCB敷銅區"] --> D
U["散熱片安裝孔"] --> T
V["溫度監測點"] --> O
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style G fill:#fce4ec,stroke:#e91e63,stroke-width:2px
攪拌電機驅動拓撲詳圖
graph LR
subgraph "H橋驅動電路"
A["電機電源 \n 24VDC"] --> B["上橋臂Q1 \n VBQF1320"]
A --> C["上橋臂Q2 \n VBQF1320"]
B --> D["電機正端"]
C --> E["電機負端"]
D --> F["直流電機"]
E --> F
F --> G["下橋臂Q3 \n VBQF1320"]
F --> H["下橋臂Q4 \n VBQF1320"]
G --> I["電機地"]
H --> I
end
subgraph "控制與驅動"
J["MCU控制信號"] --> K["電機預驅晶片"]
K --> L["上橋驅動"]
K --> M["下橋驅動"]
L --> B
L --> C
M --> G
M --> H
end
subgraph "保護電路"
N["續流二極體D1"] --> D
O["續流二極體D2"] --> E
P["電流檢測"] --> Q["過流保護"]
Q --> R["關斷信號"]
R --> K
S["死區時間控制"] --> K
end
subgraph "工作模式"
direction TB
T["正轉模式"] --> U["Q1+Q4導通"]
V["反轉模式"] --> W["Q2+Q3導通"]
X["刹車模式"] --> Y["Q3+Q4導通"]
Z["自由模式"] --> AA["全關斷"]
end
style B fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style K fill:#fce4ec,stroke:#e91e63,stroke-width:2px
輔助電源管理拓撲詳圖
graph TB
subgraph "多路負載開關控制"
A["輔助電源 \n 12V/5V"] --> B["VB1330 Q1 \n 風扇控制"]
A --> C["VB1330 Q2 \n 指示燈控制"]
A --> D["VB1330 Q3 \n 感測器供電"]
A --> E["VB1330 Q4 \n 備用通道"]
B --> F["散熱風扇"]
C --> G["狀態LED"]
D --> H["溫度感測器"]
D --> I["重量感測器"]
E --> J["擴展介面"]
F --> K["系統地"]
G --> K
H --> K
I --> K
J --> K
end
subgraph "MCU直接驅動"
L["MCU GPIO1"] --> M["限流電阻R1"]
L --> N["柵極下拉電阻"]
M --> B
O["MCU GPIO2"] --> P["限流電阻R2"]
O --> Q["柵極下拉電阻"]
P --> C
R["MCU GPIO3"] --> S["限流電阻R3"]
R --> T["柵極下拉電阻"]
S --> D
end
subgraph "保護電路"
U["TVS陣列"] --> V["柵極保護"]
V --> B
V --> C
V --> D
W["電源濾波"] --> X["去耦電容"]
X --> A
Y["負載側保護"] --> Z["負載保險絲"]
Z --> F
Z --> G
end
subgraph "節能管理"
AA["負載檢測"] --> BB["空載關閉"]
BB --> L
BB --> O
BB --> R
CC["定時控制"] --> DD["自動休眠"]
DD --> L
DD --> O
DD --> R
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style L fill:#fce4ec,stroke:#e91e63,stroke-width:2px
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