graph TB
subgraph "適配器輸入與電池管理"
A["適配器輸入 \n 12V/24V"] --> B["輸入濾波 \n EMI抑制"]
B --> C["過壓過流保護"]
C --> D["DC-DC控制器"]
E["鋰電池組 \n 7.4V-12.6V"] --> F["充電管理IC"]
F --> G["電池保護電路"]
G --> H["電池開關MOSFET"]
H --> I["電源選擇器"]
D --> I
end
subgraph "反激式DC-DC功率級"
I --> J["VBI1201K \n 初級側開關"]
J --> K["變壓器初級 \n 電感Lp"]
K --> L["RCD緩衝網路"]
L --> M["初級地"]
N["變壓器次級"] --> O["同步整流MOSFET"]
O --> P["輸出濾波 \n LC網路"]
P --> Q["系統主匯流排 \n 12V"]
R["輔助繞組"] --> S["輔助電源 \n VCC供電"]
S --> D
S --> T["回饋光耦"]
T --> D
end
subgraph "多路電壓轉換"
Q --> U["Buck轉換器1 \n 12V to 5V"]
Q --> V["Buck轉換器2 \n 12V to 3.3V"]
U --> W["5V電源域 \n 外設供電"]
V --> X["3.3V電源域 \n 邏輯供電"]
W --> Y["負載開關陣列"]
X --> Z["LDO穩壓器 \n 1.8V/1.2V"]
Z --> MCU_POWER["MCU核心供電"]
end
style J fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style H fill:#ffebee,stroke:#f44336,stroke-width:2px
電機驅動與列印系統拓撲詳圖
graph LR
subgraph "步進電機H橋驅動電路"
A["12V電源輸入"] --> B["預驅動IC"]
B --> C["高側驅動"]
B --> D["低側驅動"]
subgraph "H橋功率級"
direction TB
HS1["高側MOSFET1"]
LS1["VBQF1307 \n 低側開關1"]
HS2["高側MOSFET2"]
LS2["VBQF1307 \n 低側開關2"]
end
C --> HS1
D --> LS1
C --> HS2
D --> LS2
HS1 --> E["電機相位A"]
LS1 --> F["電機相位/A"]
HS2 --> G["電機相位B"]
LS2 --> H["電機相位/B"]
E --> I["步進電機 \n 兩相四線"]
F --> I
G --> I
H --> I
I --> J["電機地"]
end
subgraph "切刀電機驅動電路"
K["12V電源輸入"] --> L["電機驅動IC"]
L --> M["VBQF1307 \n 低側開關3"]
L --> N["VBQF1307 \n 低側開關4"]
M --> O["切刀電機正極"]
N --> P["切刀電機負極"]
O --> Q["直流切刀電機"]
P --> Q
Q --> R["電機地"]
end
subgraph "控制與保護"
S["MCU PWM輸出"] --> T["死區時間控制"]
T --> B
T --> L
U["電流檢測電阻"] --> V["電流放大器"]
V --> W["過流比較器"]
W --> X["故障信號"]
X --> Y["保護鎖存"]
Y --> Z["驅動使能"]
Z --> B
Z --> L
end
style LS1 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style LS2 fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style M fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style N fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
智能外設管理拓撲詳圖
graph TB
subgraph "4G/5G通信模組電源管理"
A["5V電源輸入"] --> B["VBQD5222U-1 \n 雙溝道開關"]
subgraph B ["VBQD5222U內部結構"]
direction LR
P_CH["P溝道MOSFET \n Vgs(th)=-0.8V"]
N_CH["N溝道MOSFET \n Vgs(th)=1.2V"]
end
B --> C["4G/5G模組 \n VCC供電(3.8V)"]
B --> D["4G/5G模組 \n VBAT供電(4.0V)"]
E["MCU GPIO"] --> F["電平轉換電路"]
F --> G["使能控制邏輯"]
G --> B
end
subgraph "掃碼引擎供電管理"
H["5V電源輸入"] --> I["VBQD5222U-2 \n 雙溝道開關"]
I --> J["掃碼引擎 \n 主電源(5V)"]
I --> K["掃碼引擎 \n 照明電源(5V)"]
L["MCU GPIO"] --> M["PWM調光控制"]
M --> N["使能與時序控制"]
N --> I
end
subgraph "安全晶片電源管理"
O["3.3V電源輸入"] --> P["VBQD5222U-3 \n 雙溝道開關"]
P --> Q["安全晶片 \n VDD供電(3.3V)"]
P --> R["安全晶片 \n VCCIO供電(1.8V)"]
S["MCU GPIO"] --> T["電源序列控制"]
T --> U["軟啟動電路"]
U --> P
end
subgraph "顯示幕背光控制"
V["12V電源輸入"] --> W["VBQD5222U-4 \n 雙溝道開關"]
W --> X["LCD背光 \n 正極驅動"]
W --> Y["LCD背光 \n 負極控制"]
Z["MCU PWM"] --> AA["背光調光器"]
AA --> AB["使能與亮度控制"]
AB --> W
end
subgraph "系統監控與保護"
AC["溫度感測器"] --> AD["MCU ADC輸入"]
AE["電流檢測"] --> AF["電流監控IC"]
AF --> AG["過流保護"]
AG --> AH["全局關斷信號"]
AH --> B
AH --> I
AH --> P
AH --> W
AI["看門狗定時器"] --> AJ["系統複位"]
AJ --> AK["電源狀態機"]
AK --> B
end
style B fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style I fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style P fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style W fill:#fff3e0,stroke:#ff9800,stroke-width:2px
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