A Flight Controller Mini Power Distribution Board, often referred to simply as a PDB (Power Distribution Board), is a component used in remote-controlled (RC) aircraft and drones, particularly those with multi-rotor configurations like quadcopters, hexacopters, and octocopters. Its primary function is to distribute electrical power from the main battery to various electronic components within the aircraft.

Key features and functions of a Flight Controller Mini PDB include:

Power Distribution: The PDB serves as a central hub for connecting the main battery to various components such as motors, ESCs (Electronic Speed Controllers), flight controllers, cameras, and other accessories. This simplifies the wiring and helps distribute power evenly to all components.

Voltage Regulation: Some PDBs come equipped with voltage regulators or regulators built into the flight controller, ensuring that the components receive a stable and appropriate voltage level. This is important because different components may require different voltage levels to operate optimally.

Current Monitoring: Many modern PDBs have current sensors that allow you to monitor the current draw of your motors and other electronics. This is useful for keeping track of the overall power consumption and ensuring that you're not overloading your system.

Integrated Features: Some PDBs may have integrated features like BECs (Battery Eliminator Circuits), which provide regulated voltage outputs for other components like cameras, video transmitters, and LEDs. This can help reduce the need for additional voltage regulators.

Connection Points: The PDB usually has solder pads, connectors, or pins for attaching the battery, ESCs, flight controller, and other components. These connection points are strategically placed to ensure proper wire management and neat installations.