Marotta

Digital Control

All controls, including motion control, are fully digital, for stable performance and increased reliability over analog implementations.

Ancillary Controls

Customized closed loop temperature, pressure and motor controls for fluid pressure and flow delivery processes

DC Brushless Motor Commutation

DC Brushless motor commutation with feedback options:  sensorless, Hall effect, resolver

Mechanical Actuation Controls

Servo loop techniques combined with digital precision are employed in Marotta actuator drives

Motor Drvie Circuits

State-of-the-art motor drive circuits use compact IGBT packages; low voltage drives employ a MOSFET package

Built-In-Test (BIT)

Extensive multi-mode BIT for fault monitoring and LRU isolation requirements

Power Supply Design

Proven low voltage bias supplies meet all EMI and Power Quality requirements, tailored to the application

Protections

Over-current, over-voltage and over-temperature protections

Digital Communications

CAN and RS422 digital links for command and health status monitoring as well as diagnostics

Pneumatic Systems Control-3000.pdf

IR Seeker Cooling Systems

This model controls the high-pressure pure air generating system which provides cooling for infra-red missiles.  Its DC Brushless, sensorless variable speed motor operation reduces cost and weight while increasing reliability.

Selected by NAVAIR for use in the LAU-7/127 launchers for the F/A-18A/F, AH-1W and AV-8B.

Pneumatic Systems Control-6000.pdf

This model has motor drive output to 800 VA, and was engineered with extensive Built-in-Test and digital CANbus communicatons.  Highly efficient, low risk design.  Meets EMI and harmonics suppression requirements.  Uses three-phase AC input power.

Selected by Boeing for use in the the P-8A Poseidon. 

This unit provides superior power handling abilities, efficient AC/DC conversion and digital power control for optimum power management.  Operates up to 3,000 VA.  Uses an advanced, thermally efficient forced air cooling system. 

Selected to control the rotary reloadable pneumatic sonobuoy launch compressor on the P-8A Poseidon. 

Marotta has designed and developed this dual-channel controller used to control two PAO pumps for ECS and APU avionics.  This design uses a liquid-loop cold plate which provides performance advantages over air-cooled solutions.  High-power density, can drive two 3.5kw motors in a lightweight, compact package.

This Safety Critical model uses motor speed and current feedback to control pump speed under varying load and power conditions. 

Selected for use in the F-35, this safety critical model controls a hydraulic pump to actuate doors and hatches during maintenance mode, as well as to provide backup hydraulics during engine flame-out. 

Flexible input power, LonWorks field bus, high availability.  Optionally equipped with super capacitor power back up system.

Selected for use in an advanced naval sub-sea vehicle, this multi-channel controller commands a series of valves for closed-loop control of hydraulic actuators on rudder, bow and stern planes as well as anchor winches.

Selected for use in the International Space Station, this fully integrated DC brushless stepper/harmonic system is used on the Active Thermal Control System.  Powered from an external 28 volt DC source with peak draw less than 1 amp.