Create®3输出电源适配器提供的总功率为28.8W。这为与Raspberry Pi配合的USB-C连接器和两针辅助VBAT连接器提供了电源。由于两个连接器之间共享该功率,其中一个连接器的消耗增加将导致另一个连接器可用功率的减少。因此,尽管表2中提到了单个部件的最大理论功耗,但真正的限制因素是整个系统可用的剩余功率。
Source | TurtleBot 4 Lite (W) | TurtleBot 4 (W) |
---|---|---|
Raspberry Pi 4B | 4 | 4 |
OAK-D-Pro | - | 5 |
OAK-D-Lite | 3.5 | - |
RPLIDAR A1M8 | 2.3 | 2.3 |
Fan | 0.8 | 1.3 |
UI Board | - | 2.4 |
User Power | - | *Limited By Remaining Power |
USB-C Ports | - | *Limited By Remaining Power |
Total Power Draw | 10.6 | 15 |
Total Available Power | 28.8 | 28.8 |
*Remaining Power | 18.2 | 13.8 |
Source | Operating Voltage (V) | Max current draw (A) | Max Power (W) |
---|---|---|---|
User Interface Board | ~40 | ||
4 USB-C ports | 5 | 3 | 15 |
USB Hub Controller | 1.2, 3.3 | 1.3 | 1.8 |
OLED Display | 12 | 0.031 | 0.372 |
User LEDs | 5 | 0.007 | 0.17 |
USER PWR Ports | VBAT | 0.3 | 4.32 |
12 | 0.3 | 3.6 | |
5 | 0.5 | 2.5 | |
3.3 | 0.25 | 0.825 | |
OAK-D-Lite | 5 | 1 | 5 |
OAK-D-Pro (connected to RPi) | 5 | 1 | 5 |
OAK-D-Pro (connected to UI Board) | 5 | 1.5 | 7.5 |
RPLIDAR A1M8 | 5 | 0.6 | 3 |
Blower Fan | 5 | 0.25 | 1.25 |
Axial Fan | 5 | 0.15 | 0.75 |
Raspberry Pi 4B | 5 | 1.2 | 6 |
Note
没有考虑到组件的低效率和功率损耗。假设USB集线器速度在所有端口都以超高速运行,并且OLED设置为最大亮度。