Files
PX4-Autopilot/docs/zh/power_systems/index.md
Hamish Willee 88d623bedb Move PX4 Guide source into /docs (#24490)
* Add vitepress tree

* Update existing workflows so they dont trigger on changes in the docs path

* Add nojekyll, package.json, LICENCE etc

* Add crowdin docs upload/download scripts

* Add docs flaw checker workflows

* Used docs prefix for docs workflows

* Crowdin obvious fixes

* ci: docs move to self hosted runner

runs on a beefy server for faster builds

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* ci: don't run build action for docs or ci changes

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* ci: update runners

Signed-off-by: Ramon Roche <mrpollo@gmail.com>

* Add docs/en

* Add docs assets and scripts

* Fix up editlinks to point to PX4 sources

* Download just the translations that are supported

* Add translation sources for zh, uk, ko

* Update latest tranlsation and uorb graphs

* update vitepress to latest

---------

Signed-off-by: Ramon Roche <mrpollo@gmail.com>
Co-authored-by: Ramon Roche <mrpollo@gmail.com>
2025-03-13 16:08:27 +11:00

1.2 KiB

Power Systems

UAVs require a regulated power supply for the flight controller, along with separate power for the motors, servos, and any other peripherals. The power is usually supplied from a battery (or batteries), though generators and other systems can be used.

Power modules are commonly used to "split off" a regulated power supply for the flight controller and also measure the battery voltage and total current consumed by the vehicle. PX4 can use this information to infer the remaining battery capacity and provide low-power warnings and other failsafe behaviour.

A Power Distribution Board (PDB) may be used to simplify the wiring for splitting the output of the battery to the flight controller, motors, and other peripherals. PDBs will sometimes include a power module, ESCs for motors, and a battery elimination circuit (BEC) for powering servos.

PX4 can also receive more comprehensive battery/power-supply information as MAVLink telemetry instead of using a power module. Batteries that can supply MAVLink information are sometimes referred to as "Smart Batteries" (this definition is open for debate).