Design of Matching Circuit Transformer for High-Power Transmitter of Active Sonar

Generally, transducers for active sound navigation and ranging (SONAR) has a low power factor due to large capacitive load characteristics. Thus, high-power transmitter requires an impedance matching circuit to improve the low-power factor of a transducer. Conventional matching circuits composed of...

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Bibliographic Details
Published inJournal of electrical engineering & technology Vol. 15; no. 5; pp. 2145 - 2155
Main Authors Song, Seung-Min, Kim, In-Dong, Lee, Byung-Hwa, Lee, Jeong-Min
Format Journal Article
LanguageEnglish
Published Singapore Springer Singapore 01.09.2020
대한전기학회
Subjects
Electrical Engineering
Electrical Machines and Networks
Electronics and Microelectronics
Engineering
Instrumentation
Original Article
Power Electronics
전기공학
Matching circuit
Active sonar
Transformer
High power transmitter
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Summary:Generally, transducers for active sound navigation and ranging (SONAR) has a low power factor due to large capacitive load characteristics. Thus, high-power transmitter requires an impedance matching circuit to improve the low-power factor of a transducer. Conventional matching circuits composed of L and C elements have many additional lumped elements. In addition, transducers for active sonar have numerous channels. As a result, the implementation of the matching circuit with many devices is non-practical and bulky due to spatial limitations. Therefore, this paper proposes a new matching circuit that uses the magnetization inductance of the transformer without additional elements. In addition, a design method of a transformer that implements a matching circuit using magnetization inductance is proposed. The proposed matching circuit is verified by the experimental results, and the volume and weight are reduced by approximately 20% compared to the conventional matching circuit.
ISSN:1975-0102
2093-7423
DOI:10.1007/s42835-020-00486-7