graph LR
subgraph "三相电机驱动逆变器"
A["高压电池 \n 300V-800V"] --> B["直流母线电容"]
B --> C["A相半桥"]
B --> D["B相半桥"]
B --> E["C相半桥"]
subgraph C["A相半桥电路"]
C1["上桥: VBGQF1408"]
C2["下桥: VBGQF1408"]
end
subgraph D["B相半桥电路"]
D1["上桥: VBGQF1408"]
D2["下桥: VBGQF1408"]
end
subgraph E["C相半桥电路"]
E1["上桥: VBGQF1408"]
E2["下桥: VBGQF1408"]
end
C1 --> F["电机A相"]
C2 --> GND1["功率地"]
D1 --> H["电机B相"]
D2 --> GND2["功率地"]
E1 --> I["电机C相"]
E2 --> GND3["功率地"]
F --> J["推进电机"]
H --> J
I --> J
end
subgraph "栅极驱动与保护"
K["PWM控制器"] --> L["隔离驱动器 \n Si8239"]
L --> M["驱动信号隔离"]
M --> C1
M --> C2
N["电流检测"] --> O["过流比较器"]
O --> P["故障锁存"]
P --> Q["快速关断"]
Q --> L
end
style C1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style D1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
伺服舵机控制系统拓扑详图
graph TB
subgraph "H桥舵机驱动"
A["24V/28V电源"] --> B["输入滤波"]
B --> C["H桥功率级"]
subgraph C["H桥功率级"]
D["Q1: VBQF1307"]
E["Q2: VBQF1307"]
F["Q3: VBQF1307"]
G["Q4: VBQF1307"]
end
D --> H["舵机正端"]
E --> I["功率地"]
F --> J["舵机负端"]
G --> I
H --> K["舵机负载"]
J --> K
end
subgraph "控制与驱动电路"
L["舵机控制器"] --> M["半桥驱动器 \n IR2104"]
M --> N["栅极驱动网络"]
N --> D
N --> E
N --> F
N --> G
O["位置传感器"] --> P["PID控制器"]
P --> L
Q["电流检测"] --> R["力矩控制"]
R --> L
end
subgraph "EMC抑制措施"
S["RC吸收电路"] --> D
S --> F
T["π型滤波器"] --> A
U["屏蔽线缆"] --> K
end
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
机载设备电源系统拓扑详图
graph LR
subgraph "同步Buck变换器"
A["DC输入 \n 12V/24V"] --> B["输入滤波"]
B --> C["主开关节点"]
subgraph "功率开关"
D["上管: VBQG1620"]
E["下管: VBQG1620"]
end
C --> D
C --> E
D --> F["电感L"]
E --> GND["功率地"]
F --> H["输出电容"]
H --> I["直流输出 \n 1.2V-5V"]
end
subgraph "控制与保护"
J["Buck控制器 \n TPS54620"] --> K["栅极驱动"]
K --> D
K --> E
L["电压反馈"] --> M["误差放大器"]
M --> J
N["电流检测"] --> O["过流保护"]
O --> P["打嗝模式"]
P --> J
end
subgraph "负载分配"
I --> Q["AI计算机 \n 高算力模块"]
I --> R["图像处理单元"]
I --> S["通信模块"]
I --> T["传感器阵列"]
end
subgraph "电源管理"
U["PMIC"] --> V["多路LDO"]
V --> W["内核电源"]
V --> X["IO电源"]
V --> Y["外设电源"]
end
style D fill:#fff3e0,stroke:#ff9800,stroke-width:2px
style E fill:#fff3e0,stroke:#ff9800,stroke-width:2px
热管理与可靠性拓扑详图
graph TB
subgraph "三级散热架构"
A["一级: 机身集成散热"]
B["二级: PCB厚铜与过孔"]
C["三级: 强制风冷系统"]
subgraph "散热路径"
D["电推进MOSFET"] --> A
E["伺服MOSFET"] --> B
F["电源MOSFET"] --> C
G["控制芯片"] --> B
end
subgraph "温度监测"
H["NTC传感器1"] --> I["温度采集"]
J["NTC传感器2"] --> I
K["红外热成像"] --> I
I --> L["热管理MCU"]
end
subgraph "主动冷却控制"
L --> M["风扇PWM控制"]
L --> N["泵速控制(液冷)"]
M --> O["冷却风扇阵列"]
N --> P["液冷循环泵"]
O --> D
P --> D
end
end
subgraph "航空级保护网络"
Q["TVS管阵列"] --> R["电源输入端"]
S["ESD防护"] --> T["信号接口"]
U["过压保护"] --> V["比较器链"]
W["过流保护"] --> X["硬件锁存"]
Y["看门狗"] --> Z["系统复位"]
V --> AA["故障隔离"]
X --> AA
AA --> BB["安全关断"]
BB --> D
BB --> E
end
subgraph "可靠性增强"
CC["降额设计 \n 电压70%"] --> D
DD["热循环测试 \n -40℃~125℃"] --> E
EE["振动加固"] --> FF["底部填充"]
FF --> D
FF --> E
GG["AEC-Q101认证"] --> HH["航空级筛选"]
end
style D fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style E fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style F fill:#fff3e0,stroke:#ff9800,stroke-width:2px
点击下载：VBQG1620规格书
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