Design of High-Efficiency High-Power Transmitter for Active Sonar

To implement long-distance transmission/reception of signals in the water, low frequency sound wave with low attenuation should be used. However, acoustic transducers generally have widely variable impedance characteristics depending on the driving frequency, and have large capacitive loads. The proper power transmitter is required to drive such transducers safe and reliable. So this paper proposes a high power transmitter suitable for driving acoustic transducers.