graph LR
subgraph "三相逆变桥臂拓扑"
A[高压直流母线] --> B[U相上管驱动]
A --> C[V相上管驱动]
A --> D[W相上管驱动]
subgraph "上桥臂MOSFET"
Q_UH1["VBP165R76SFD \n 650V/76A"]
Q_VH1["VBP165R76SFD \n 650V/76A"]
Q_WH1["VBP165R76SFD \n 650V/76A"]
end
B --> Q_UH1
C --> Q_VH1
D --> Q_WH1
Q_UH1 --> E[U相输出]
Q_VH1 --> F[V相输出]
Q_WH1 --> G[W相输出]
subgraph "下桥臂MOSFET"
Q_UL1["VBP165R76SFD \n 650V/76A"]
Q_VL1["VBP165R76SFD \n 650V/76A"]
Q_WL1["VBP165R76SFD \n 650V/76A"]
end
E --> Q_UL1
F --> Q_VL1
G --> Q_WL1
Q_UL1 --> H[功率地]
Q_VL1 --> H
Q_WL1 --> H
end
subgraph "驱动与保护电路"
I[PWM控制器] --> J[栅极驱动器]
J --> B
J --> C
J --> D
subgraph "下桥臂驱动"
K[下管驱动器]
end
I --> K
K --> Q_UL1
K --> Q_VL1
K --> Q_WL1
subgraph "保护网络"
L[电流检测]
M[电压检测]
N[温度检测]
O[RCD缓冲]
P[TVS保护]
end
E --> L
A --> M
Q_UH1 --> N
Q_UH1 --> O
J --> P
L --> I
M --> I
N --> I
end
subgraph "输出滤波与连接"
E --> Q[输出滤波器]
F --> Q
G --> Q
Q --> R[电机接口]
R --> S[主驱电机]
end
style Q_UH1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
style Q_UL1 fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
高压DC-DC辅助电源拓扑图
graph LR
subgraph "高压隔离变换级"
A[高压直流输入] --> B[输入滤波]
B --> C["VBE18R07S \n 800V/7A"]
C --> D[LLC谐振腔]
D --> E[高频变压器]
subgraph "变压器结构"
E1[初级绕组]
E2[次级绕组1]
E3[次级绕组2]
end
E1 --> D
E2 --> F[同步整流1]
E3 --> G[同步整流2]
F --> H[24V输出]
G --> I[48V输出]
H --> J[24V滤波]
I --> K[48V滤波]
J --> L[24V低压母线]
K --> M[48V低压母线]
end
subgraph "控制与保护"
N[LLC控制器] --> O[高压侧驱动]
O --> C
subgraph "同步整流控制"
P[同步整流控制器]
end
P --> Q[同步整流驱动]
Q --> F
Q --> G
subgraph "保护功能"
R[过压保护]
S[过流保护]
T[过温保护]
U[短路保护]
end
H --> R
L --> S
C --> T
M --> U
R --> N
S --> N
T --> N
U --> N
end
subgraph "输出分配"
L --> V[24V负载分配]
M --> W[48V负载分配]
subgraph "负载类型"
X[飞控系统]
Y[传感器]
Z[通信模块]
AA[作动器]
end
V --> X
V --> Y
W --> Z
W --> AA
end
style C fill:#fff3e0,stroke:#ff9800,stroke-width:2px
智能负载管理与热控制拓扑图
graph LR
subgraph "双路智能开关通道"
A[MCU控制信号] --> B[电平转换]
B --> C["VB5460 通道1"]
B --> D["VB5460 通道2"]
subgraph "开关内部结构"
direction TB
C1[N沟道MOSFET]
C2[P沟道MOSFET]
D1[N沟道MOSFET]
D2[P沟道MOSFET]
end
POWER_24V[24V电源] --> C1
POWER_24V --> D1
C1 --> LOAD1[负载1]
C2 --> LOAD1
D1 --> LOAD2[负载2]
D2 --> LOAD2
LOAD1 --> GND_SW
LOAD2 --> GND_SW
end
subgraph "多级热管理系统"
subgraph "一级液冷系统"
E[液冷泵] --> F[液冷板]
F --> G[主驱MOSFET]
F --> H[散热器]
H --> I[冷却风扇]
end
subgraph "二级风冷系统"
J[风扇控制器] --> K[风扇阵列]
K --> L[DC-DC开关管]
K --> M[驱动芯片]
end
subgraph "三级自然散热"
N[PCB敷铜层] --> O[负载开关IC]
N --> P[信号调理]
end
subgraph "温度监控"
Q[温度传感器网络] --> R[温度采集]
R --> S[热管理MCU]
S --> T[PWM控制]
T --> E
T --> J
end
end
subgraph "故障保护与诊断"
U[过流检测] --> V[故障锁存]
W[过温检测] --> V
X[振动检测] --> V
Y[电压检测] --> V
V --> Z[保护动作]
Z --> AA[关断开关]
Z --> BB[降低功率]
Z --> CC[故障上报]
AA --> C
AA --> D
CC --> COMM[通信接口]
end
style C fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style D fill:#e3f2fd,stroke:#2196f3,stroke-width:2px
style G fill:#e8f5e8,stroke:#4caf50,stroke-width:2px
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