CUAV CAN PMU High Precision Power Detection Unit for Pixhawk

Overview of CUAV CAN PMU

A drone power management module developed by CUAV is a drone power management module with an integrated STM32F4 processor running CUAV’s ITT compensation algorithm to accurately measure the voltage and current of a drone’s battery. It can be used to input voltages of 6~62V and the POWER output port can output 5V/ 8A. In addition to its use of advanced CAN bus communication, this device supports the standard DroneCAN protocol. During the factory calibration process, each PMU ensures high accuracy and a high level of consistency. You can easily use the CAN PMU to power the Pixhawk flight controller of the drone or robot and to the voltage and current measure.

Accurate power consumption estimate

Internally, it can be sampled in real-time over 100HZ, the power consumption/instantaneous power consumption can be calculated in real-time, and accurate power consumption information can be transmitted to the flight control for safer and controllable flight missions.

FAQ – CUAV CAN PMU Power Module

1. What is the CAN PMU used for?
It is a high-precision power management and monitoring module for UAVs, measuring battery voltage and current while supplying regulated power to the flight controller.

2. What input voltage and current ranges does it support?
It supports a voltage input range of 6 V to 62 V (2S to 15S LiPo) and can measure up to 110 A of current.

3. What are its measurement accuracies and resolution?
Voltage accuracy is around ±0.05 V, current accuracy around ±0.1 A, with a resolution of 0.01 (A or V) increments.

4. What regulated output power does it provide for peripherals or the flight controller?
It provides a regulated 5.4 V output at 5 A (with higher short bursts possible) to power flight controller systems or other peripherals.

5. What size and operating-environment specifications does it have?
It has dimensions of approximately 46.5 × 38.5 × 22.5 mm, weighs around 76 g, and is rated for operation from about -20 °C up to +100 °C.

6. Is the CAN PMU suitable for professional or industrial UAV deployments?
Yes — given its wide input range, high current measurement capability, accurate monitoring, regulated output and CAN bus interface, it is well suited for large, commercial or industrial UAV platforms.