CUAV CAN PMU Lite Power Management Module Open Source Hardware
CUAV CAN PMU Lite is an open-source power management module from CUAV. It integrates an STM32F412 processor, supporting 10–60V input voltage and 5.2V/4A regulated output.
Compared with HV_PM, it uses advanced CAN bus communication and supports the standard UAVCAN protocol. PMU Lite embeds the ITT temperature compensation algorithm. Factory calibration delivers precise voltage and current readings across varying temperatures.
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CUAV CAN PMU LIte Main Function:
- Support 10~60V voltage input
- Maximum passing current: maximum 90A
- Measurement accuracy, current accuracy within 80A 0.2, voltage accuracy 0.15V
- Regulated output: can provide up to 21W 5.2V/4A power output for peripherals
- Power indicator LED visually indicates the Lipo voltage status
- Future upgrades support more functions, such as power consumption statistics and instantaneous power consumption push
Hardware Specifications:
| Processor | STM32F103CEU6 |
| Input voltage | 10-60V |
| Maximum current | 90A |
| oltage accuracy | ±0.15V |
| Current accuracy | ±0.2A |
| Resolution | 0.01A/V |
| Maximum output power | 4200W / 90S |
| Maximum stable output power | 3600W |
| 5V regulated output | Maximum 5A,stable 4A |
| letter of agreement | UAVCAN |
| Operating temperature | -20 ~ 100℃ |
| Firmware upgrade | stand by |
| Interface Type | IN / OUT: XT60-M / XT60-F Power/CAN: 502585-0670 Other: SM06B-GHS-TB |
| Product Size | 140mm (length) * 25mm (width) * 13mm (height) |
| APM firmware support | 1.Rover 3.5.1and above are available 2.Copter 3.7and above are available 3.Plane 3.10and above are available 4.Heli3.7and more available Copter3.6firmware users need toflash the3.7version firmware and then flash back to the 3.6 version |
| PX4 firmware support | PX4 Pro V1.10.1 or higher |
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