本文介绍了低噪声平衡放大器技术的基础理论，对平衡式放大器及其实现技术进行了研究。
In this paper, author introduces the basic theory of LNA, and studys the theory and technology of balance LNA.
双回转机构的步进电机控制电路由TDA1521音频集成功率放大器组成平衡桥式功率驱动电路，由计算机并行口经过锁存器构成脉冲分配器。
To control stepping motors, the balance bridge power drive circuit is made up by TDA1521 integrated audio power amplifier, the pulse allotter is made up by the parallel ports of computer and latches.
磁势自平衡回馈补偿式直流传感器是在传统直流互感器、双向磁放大器基本原理的基础上设计出的一种新型的直流大电流传感器。
The DC sensor based on magnetic potential self-balance and feed-back compensation is brought forward based on the research of basic principles about traditional DC transformer and magnetic magnifier.
制作这种便携式平衡放大器的最强大的放大器设计过。
Making this portable balanced amp the most powerful amp ever designed.
制作这种便携式平衡放大器的最强大的放大器设计过。
Making this portable balanced amp the most powerful amp ever designed.
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