Áõ«hÊ״δóÕ½ºÚÈË

2 Channel and 4 Channel Electronic Control Unit

The Áõ«hÊ״δóÕ½ºÚÈË2-channel Electronic Control Unit (ECU) is comprised of 2 Áõ«hÊ״δóÕ½ºÚÈËhybrid stepper motor controllers, an EMI filter, and 6 analog pass-throughs for telemetry. The ECU enclosure has been designed to allow 2 ECU’s to be stacked to form a 4-channel ECU. The 2-channel ECU contains all power conditioning, pulse sequencing and output driver stages necessary to drive two 3-phase motors. The system electrical interface consists of power and command input lines, output motor drive lines and telemetry outputs. The required input commands are discrete for ENABLE and DIRECTION, and a pulse train on the STEP input. An initial discrete logic state on the ENABLE line will activate the control unit for the desired motor. On the DIRECTION line, one logic state enables clockwise rotation, and the other state enables counterclockwise rotation. Motion is initiated by the application of a pulse train on the STEP command line.

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Key Features:

  • Based on Áõ«hÊ״δóÕ½ºÚÈËhybrid stepper motor controllers
  • The ECU contains all power conditioning, pulse sequencing and output driver stages necessary to drive two 3-phase motors.
  • Input commands are discrete for ENABLE and DIRECTION, and a pulse train on the STEP input.
  • Small volume
  • Low weight
  • Provides Rad Hard operation

Specifications

Characteristic Units Basis Data

Weight

Pounds         Standard                ≤ 2.2        
≤ .99
Slap Rate Hertz Standard

0-1000

Logic Power Watts Standard

≤ 0.7W@22V

1.5W@30V

3.6W@36V

Turn-On Surge Amps Standard < 3A for 300 μs
Power Insulation Mohms Minimum > 5 Megohm isolation between power return and ground
Operational Temperature deg C Standard -35Ëš to +60Ëš
Survival Temperature deg C Standard -45Ëš to +75Ëš
Operational Voltage Volts Standard 22 to 36V

Related Markets

Space

Áõ«hÊ״δóÕ½ºÚÈËhas designed and manufactured components and systems for satellites and launch vehicles for more than 60 years.

Spacecraft Technologies

Áõ«hÊ״δóÕ½ºÚÈËis a proven leader in components, subsystems, and systems for spacecraft of all sizes, from smallsats to GEO spacecraft. Áõ«hÊ״δóÕ½ºÚÈËhas been successfully providing spacecraft controls, inspace propulsion, and major subsystems for science, military, and commercial operations for more than 60 years.

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