CUAV CAN PMU Power Detection Unit for Unmanned Systems Hardware
CUAV CAN PMU is a power detection unit and power management hardware for unmanned systems. It integrates an STM32F4 processor and runs CUAV’s ITT algorithm for real-time, precise voltage and current measurement. It accepts 6–62V input and handles up to 110A current. It delivers 5.4V/5A continuous output (8A peak for 120s) to power flight controllers.
It uses CAN bus communication and supports the standard DroneCAN protocol. Every unit is factory calibrated for stable and accurate performance.
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CAN PMU Power Management Module Feature:
- 0.05V 0.1A accuracy
- 5V / 5A regulated output
- Maximum support 62 V voltage input, 110 A current measurement
- Self-developed ITT algorithm
CAN PMU Power Management Module Specification:
Main Parameter |
|
| Processor | STM32F412(32 Bit Arm Cortex -M4, 100MHz, 512KB FLASH, 256KB RAM) |
| Voltage Input | 6 ~ 62V(2 ~ 15S) |
| Max Current | 110A |
| Voltage Accuracy | ±0.05V |
| Current Accuracy | ±0.1A |
| Resolution | 0.01A/V |
| Max Output Power | 6000W/90s |
| Max Stable Power | 5000W |
| Power Port Output | 5.4V/5A |
| Protocol | DroneCAN |
| Operating Temp | -20 ~ 100 ℃ |
| Firmware Upgrade | Support |
| Calibration | Factory calibration |
| Interface Type | IN/OUT: XT90(Cable）/Amass 8.0(Module） Power: 5025850670 CAN: GHR-04V-S |
| Size | 46.5 × 38.5 × 22.5mm |
| Weight | 76g |
Digital communication safe and reliable
The CAN PMU adopts the standard UAVCAN digital communication protocol. It transmits all data digitally and eliminates errors from traditional ADC’s signal attenuation and interference.
Accurate power consumption estimate
It samples internal data at over 100Hz in real time and calculates power draw and instantaneous power consumption on the fly.
It sends precise power consumption data to the flight controller for safer, more controllable flight missions.
Low EMl, 5A high current regulated output
Built-in voltage regulator with LT8645S chip, supports 62V input,5.4V/8A synchronous buck regulator, with ultra-low EMI and EMC, up to 95% conversion efficiency to meet the industry’s Unmanned Systems controller peripherals, and large application needs.
*Maximum instantaneous output current 8A.maximumcontinuous output current 5A
CUAV independently develops ITT algorithms to assist precision measurement
CAN PMU uses the self-developed ITT (impedance temperature track) algorithm to compensate for the measurement error caused by different operating temperature impedance changes, enabling CAN PMU to maintain consistent precision voltage and current measurements at various operating temperatures.
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