Power solutions & supplies

Motor Control

Air Data’s expertise in power conversion products is well recognized by the industry. Activities from design phase, prototyping, qualification testing and production are all conducted in our facility.

Capabilities and know-how for commercial and military avionics applications extend from low power DC-DC multiple outputs to AC-DC power supply, generator controller for primary 28V bus power and power motor control. Custom or semi custom design is provided based on specific customer requirements.

Motor Control Key Features

  • Proprietary POWER HYBRID for 28V Bus fully integrated Power MOSFET module, three phase motor bridge with integrated main bus switch.
  • Passive or Synchronous rectification for AC-DC power conditioning
  • AlSiC substrate for high thermal transfer and 1KV isolation
  • Up to 250 A motor current leg capability for high torque
  • Cycle by cycle current limiting
  • Very low RDSON less than 1.4 mOhm
  • Hybrid module foot print 4.85 L x 4.5 W x 1.1 H (dimensions in inches)
  • Speed and current closed loop regulation capability
  • Wide temperature range operation -75℃ to +100℃.
  • Rugged design up to 100 V transients
Power solutions & supplies

Power Supplies

Air Data’s expertise in power conversion products is well recognized by the industry. Activities from design phase, prototyping, qualification testing and production are all conducted in our facility.

Capabilities and know-how for commercial and military avionics applications extend from low power DC-DC supplies with multiple outputs to AC-DC power supplies and generator control units for primary 28V bus power and power motor control. Custom or semi-custom design is provided based on specific customer requirements.

Power supplies

DC-DC Power Supply

  • Switching regulator with integrated EMI/EMC filters and indirect lightning protection. From 28V to 270VDC input
  • Fully isolated input/output from 600V to 2.5KV
  • High frequency switching for small size.
  • Excellent thermal management for high reliability
  • Multiple output regulation
  • Conforming to most stringent categories of RTCA DO-160, MIL-STD-STD 704, MIL-STD-461 and MIL-STD-810 requirements
  • Holding time capability up to 200ms depending on output power.
Power Supplies

AC-DC Power Supply

  • Single and 3 phase input with power factor correction
  • Star or DELTA input bus configuration
  • Wide input frequency range from 360 to 800Hz
  • Harmonic Content conforming to ABD0100 requirements
  • Conforming to most stringent categories of RTCA DO-160, MIL-STD-704, MIL-STD-461 and MIL-STD-810 requirements.
  • Highly efficient heat exchanger cooling technique providing high reliability in power ranges of 10KW and up.
Power solutions & supplies

Generator Control Unit

Air Data’s seasoned design team has experience in a wide variety of power loads from very low noise voltage source to high power voltage source and digital circuitry.

Air Data power controllers and power supplies are designed to meet all applicable aircraft environmental requirements.

Generator Regulator Control Unit (GRCU)

The Generator Regulator Control Unit (GRCU) regulates the voltage of a nominal 28VDC/200A generator-starter conforming to MIL-G-6162 for single or multi-engine aircraft. The GRCU provides DC power conforming to limits specified in MIL-STD-704F. The GRCU is designed to share the current load of a second GRCU to regulate a twin-generator 28 VDC electrical power system.

Features

  • Easily adaptable for various types of aircraft
  • Voltage regulation
  • 7-position voltage setting (27.0 to 29.0 VDC)
  • Reverse and over current protection
  • Overvoltage and undervoltage protection
  • Line contactor control with short circuit protection
  • Generator field control with short circuit protection
  • Floating pin detection protection
  • Current or load sharing (voltage regulation) in a dual configuration
  • Cross-start (current regulation) in a dual configuration
  • Fully digital sequencing control
  • Gen. Out and Degraded indicators outputs
  • Over current discrete output
  • No scheduled maintenance required