Qortek, Inc. SBIR Phase II Award, August 2018

QorTek and Lockheed Martin are together proposing a new advanced integrated topology converter architecture that would significantly improve both low frequency rejection, the high frequency switching noise content and still fit within the confines of the design envelope. As the prime contractor for the MK48 CBASS torpedoMS2 is uniquely positioned to work with QorTek in both assuring that the developed units meet performance requirements and providing the technology transition path directly to production line of the MK48. Low frequency noise that is not rejected by the power supply will couple to the sonar system hardware and will reduce the high performance extended bandwidth of the CBASS (Common Broadband Acoustic Sonar System) transmit and receive functions. The approach is to develop a modular solution in line with Navy torpedo performance upgrade programs to counter continuously evolving threats upgrades of the Mk-48. The central aim will be to design this new, very low noise power supply solution that will enable full wide bandwidth utilization of the MK48 torpedo through its novel noise reducing injection signal circuitry, such that at every stage within the power supply noise reduction, rejection, emissions will be addressed.