Veronte R24F DC-DC converter

The Veronte R24F is a DC-DC converter for avionics power supply made by Embention, designed to turn a wide, variable DC input into a regulated 24 V DC output. It is part of the Veronte avionics ecosystem for unmanned aircraft and other autonomous vehicles, and it is sold in two versions so the buyer can match it to the installation.

The main reason to use this converter is its input range. It accepts 14 V to 160 V DC and delivers 24 V DC at up to 2.5 A, which corresponds to 60 W of continuous output. A source such as a high-voltage battery pack, a generator bus or a bus that sags under load can therefore feed critical avionics, such as flight computers, datalinks and payload electronics, from a stable 24 V rail. Efficiency is 90 %, which keeps heat dissipation in the converter low at full load.

The two versions differ in protection and size. The R24F (reference P003957) is protected by a watertight diecast aluminum enclosure and is rated IP 66. The R24F OEM (reference P003956) is the bare board: smaller, lighter and with better heat dissipation, though mechanical protection may be required by the host installation. The operating temperature range is -40 degrees C to 75 degrees C for the unit.

Integration is by soldering. The installer welds the input and output wires to the pads of the board according to the pinout: HV IN is the positive of the input supply (14 V to 160 V DC), HV GND its ground, OUT the positive 24 V output and GND the output ground. The input and output grounds are not common, which gives galvanic separation between the high-voltage side and the 24 V rail. In the enclosed version the cables pass through a cable gland and the board is screwed back into the housing, with M3 screws recommended for mounting; the OEM board is fixed with M4 screws. In saline environments, such as coastal and oceanic operation, the mounting screws must be stainless steel.

This converter does not support redundancy, unlike the Veronte R12S, so installations that need redundant power paths use a different unit or an external arrangement. Maintenance is limited to cleaning with a clean, soft, damp cloth with the unit switched off, and the unit must not be immersed in water.

Typical applications are fixed-wing and multirotor UAS, VTOL aircraft and ground or marine autonomous vehicles with high-voltage buses, where a single compact module must feed avionics at 24 V. System designers should size the 2.5 A limit against the combined load of the equipment on the rail.