Micross Hi-Rel DC-DC Power… On Board KA425 Satellite

South Korea successfully launched its first “425 Project” Synthetic Aperture Radar (SAR) Satellite.  Onboard the K425 Satellite is Micross’ custom TPSUR DC-DC power supply – designed specifically for SAR applications based on the standard TPSU model. The redundant TPSUR power supply consists of two identical power supplies installed in a single mechanical structure, and is internally cross strapped on the output rails. The DC-DC converter supplies both the transmitter and receiver portion of the radar antenna and applies special design methods to minimize the EMI generated by the transmitter and receiver.

TPSU DC-DC Converter

Micross’ TPSU  offers state-of-the-art performance and is specifically designed for GaN based synthetic aperture radar (SAR) and solid-state power amplifiers (SSPA) applications. Providing excellent suppression of pulsed load current from output to input, and can be tailored to the specific spacecraft bus and equipment requirements.

Details

  • Product Family: TPSU
  • Number Of Output: 4
  • Output Power: 400W
  • Output Configuration: Output 1: +30V to +60V, max 8A/350W
    Output 2: +5V to +30V, max 6A/50W
    Output 3: +5V to +10, max 1A/8W
    Output 4: – 5V to -15V, max 1A/5W
  • Key Applications And Feature:
    High Efficiency with two Main Outputs for Rx and Tx
    Synthetic Aperture Radar (SAR) Applications
    Excellent Low Frequency EMI performance
    Output ON/OFF Sequencing
  • Size_mm_LWH: 180 x 120 x 25
  • Mass: <520g
Micross Hi-Rel DC-DC PCB Power Converters

Micross Hi-Rel Power Solutions Rad-Hard PCB based DC-DC power supplies include all key features to directly interface with satellite platforms and are tailored to the customers power requirements. Micross provides a range of standard platforms based on a general design philosophy which can be tailored to the customer’s program requirements. Fully customized designs are also supported.

Micross Hi-Rel Power Solutions Rad-Hard PCB based DC-DC power supplies include all key features to directly interface to the satellite platform and is tailored to the customers power requirements. This product range offers:

  • Excellent power efficiency
  • EMI input filter
  • Input under voltage protection
  • Output overload protection and ON/OFF sequencing
  • Isolated ON/OFF pulse command interface
  • Output overload protection and ON/OFF sequencing
  • Radiation Hardened to 100 kRad and 60 MeV cm2 / mg
  • Various telemetries