Abstract
The high power transmitter of active sonar for underwater communication regularly switches between transmit and receive modes. The matching transformer in the high-power transmitter has significant power loss only during the transmit mode. The conventional design of the transformer, considering only the handling power of the transmit mode, may result in a bulky over-spec transformer. In a long operating period, the matching transformer has high stress due to a large temperature ripple at the hot spot of the winding conductor insulation, resulting in no guarantee of the transformer's lifespan. Hence, this paper proposes a new transformer design method considering the operating duty and lifespan of a high-power transmitter for active sonar. The proposed design method consists of initial design, verification, and redesign. It can guarantee the lifespan of a transformer at the design stage by utilizing the aging acceleration factor FAA and equivalent aging acceleration factor FEQA. The effectiveness of the proposed design method is verified by manufacturing a transformer and performing related simulations.
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This work was supported by a Research Grant of Pukyong National University (2021).
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Song, SM., Kim, ID. Compact Design of Matching Transformer with Long Operating Period Considering Aging Acceleration Factor and Life Span. J. Electr. Eng. Technol. 18, 3061–3070 (2023). https://doi.org/10.1007/s42835-023-01539-3
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DOI: https://doi.org/10.1007/s42835-023-01539-3