嵌入式水声功率放大器设计

Embedded Underwater Acoustic Power Amplifier

摘要:

功率放大器是水声信号发射机中的核心部件,其发展方向是低功耗、高效率和小体积。论文提出了一种可与匹配网络独立的嵌入式水声功率放大器技术方案,利用数字音频驱动器IRS2092设计并研制了一款高声源级的水声功率放大器样机,并通过水池实验测试了整机性能,验证了方案的可行性和先进性。测试结果表明,该样机在180×60×70mm3体积、24V电池供电和90W平均功率条件下实现了高达187dB的发射声源级,能较好地满足舰载或嵌入式的要求。

Abstract:

Power amplifier is a core component of the acoustic signal transmitter ,and the development direction is lower power, higher efficiency and smaller size. This paper proposes an embedded acoustic power amplifier technology solution with the independent matching network, designs and develops a complete high source-level acoustic power amplifier prototype based on digital audio amplifier IR2092, tests integrative performance by water-tank experiment, and verifys the feasibility and advancement. The test result shows that the prototype at 180×60×70 mm₃ volume, battery supply of 24V and average power of 90W can reach at 187dB emission source level, which can meet the needs of shipboard or embedded request.