024 PL Hybrid BEC electrical power-management product

The 024 PL Hybrid BEC from MAUCH Electronic is a battery eliminator circuit, a regulated power module that supplies the flight controller and sensors from the main flight battery of a UAV. It belongs to the PMU modules class for multirotor and fixed-wing aircraft, converting a 4S to 14S LiPo input into stable low-voltage rails.

It supplies three regulated outputs: two rails at 5.30 V and one at 12.0 V, specified at 3 A with a tolerance of plus or minus 0.05 V. Ripple is 1 mV at 1.5 A output current. The two 5.3 V rails allow separate supplies for redundant flight controllers or for the flight controller and a payload, while the 12.0 V rail suits equipment such as a video transmitter or camera.

The input accepts 4S to 14S LiPo packs up to a maximum of 60 V, which covers the battery range of most professional multirotors. An integrated LDO regulator provides 5.00 V plus or minus 0.03 V for the PL-series sensor board, as well as for the PL Sensor Hub X2 and X8, and its output connector is a four-pin Molex Clik-Mate. A blue LED shows that power is on.

For installation, the module measures 59 mm x 66 mm x 13 mm and weighs 57 g in its enclosure without cables. The scope of delivery includes the BEC, a 150 mm PL-series sensor cable, a 150 mm backup cable for Pixhawk 2.1, a 5.0 V output cable with a Molex Clik-Mate 1.25 mm six-pin connector on one end and open wires on the other, and the enclosure.

The BEC ships without a flight controller cable, so the integrator orders the cable matching the controller, for example a DF13 six-pin, a Molex Clik-Mate 2.0 six-pin or a JST-GH six-pin version. A user manual is available from the maker.

Typical applications are power distribution for professional multirotors and fixed-wing UAS, where a single supply must feed the autopilot, a sensor board and a 12 V payload from one traction battery.