900W Power Distribution Unit

Redundant power distribution and monitoring to keep your assets safe in the air

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Overview

Highlights

Configurations

Specifications

Gallery

Resources

900W Power Distribution Unit

The 900W Power Distribution Unit converts unregulated battery voltage down to a set of regulated outputs suitable for distribution within small to medium-sized UAVs. Three main outputs are provided, each of which may be user-configured for voltage. The avionics and servo power supplies are fully duplicated internally to maximise system reliability through redundancy.

Features

dual battery inputs with automatic lossless switchover
An umbilical input to ensures that batteries are not depleted during pre-flight checks
RS232 and CAN monitoring interfaces provide extensive reporting of voltages, currents and internal temperature
Avionics, Servo and Payload outputs are user-configurable for voltage
Avionics, Servo and low-power outputs have 100% redundancy (i.e. the outputs are the result of combining two identical and independent power supplies, each of which is capable of supplying 100% of rated load)
Two battery inputs. Battery voltage may range from 24 to 55 VDC. Supported battery types include:
- - - - LiPo: 10 – 12S
      - LiS: 15 – 20S
      - LiFe: 10 – 14S
      - LiIon: 10 – 15S

Highlights

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Redundant outputs

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User configurable voltage

U

Extensive monitoring

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Customized to your requirements

Configurations

All configurations have the same technical features.

This version of the PDU is configured as a power source only and platform signals onboard are to be routed in a more complex wiring harness.

This version offers the user flexibility in terms of platform harnessing. The PDU not only acts as a power source but also as the nerve center of the platform. All signals are interfaced to the PDU and routed internally directly to the specified output connectors, enabling less complex wiring harnesses and separation into smaller harnesses to reduce maintenance and repair costs and offer flexibility in terms of interfacing new or different equipment into the system.

The dual-PDU houses two 900W PCBAs in one enclosure, providing 1800W of power with six programmable and monitored outputs. A dedicated page will follow soon.

Specifications

Battery inputs	24 to 55 VDC
Umbilical input	28 to 60 VDC
Avionics output	12 to 28 VDC, 5 Amps continuous, 100 Watts max.
Servo output	6 to 28 VDC, 25 Amps continuous, 300 Watts max.
Payload output	12 to 28 VDC, 18 Amps continuous, 500 Watts max.
Environmental protection class	IP66
Operating temperature range	-40 to +85°C
Altitude rating	10,000m
Cooling	Thermostatically controlled redundant fans
Enclosure	Lightweight custom-machined aluminium
Connectors	LEMO M-Series with ratchet coupling
Communications protocols	RS232 (57600 8N1), CAN (1Mb/S)