Moog has over 40 years of experience with solar array drive assemblies (SADA), for both Earth orbit and planetary missions. The solar power application is one of the most established for Moog actuators and biaxial gimbals.
The small satellite Solar Array Drive Assembly (SADA) is a lightweight and compact power solution for positioning solar array panels. Continuous rotation of the solar array is facilitated by the integration of a slip ring assembly.
The Side-Drive Solar Array Drive Mechanism (SADM) consists of a slip ring assembly and an actuator coupled by a spur gear set, which, when driven by suitable drive electronics, will position the Solar Array toward the sun for maximum power and transfer the collected energy to the spacecraft power bus.
The single axis Type 3/5 Solar Array Drive Assembly (SADA) is based on the Type 3 Rotary Incremental Actuator with a Type 5 sized Harmonic Drive gear transmission and output duplex pair. This standard SADA has varied over many applications to meet mission requirements.
The Moog 2-channel Electronic Control Unit (ECU) is comprised of 2 Moog hybrid 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.