1) D-classes
D-类
1.
Maximal Subsemigroups of D-classes of Finite Full Transformation Semigroup T_n;
有限全变换半群T_n的D-类的极大子半群
2) class-D
D类
1.
Principle and application of MAX9708 high power class-D amplifiers;
大功率D类音频放大器MAX9708原理与应用
2.
Integrated circuit of a class-D audio power amplifier with very high efficiency using CMOS technol- ogy is presented in this paper.
D类功率放大器适应便携设备高效节能的客观需求,从而在音频模拟集成领域具有优势,随着设计技术的不断进步,D类功率放大器的性能指标也逐渐接近AB类放大器。
3) Class D
D类
1.
2×80 Watts Class D AF Power Amplifier Design Based on Single Chip TDF8590;
基于单片TDF8590的2×80WD类音频功放设计
2.
With the characteristics of high efficiency, energy conservation, digitization, small size and light weight, Class D audio power amplifier adapts to the objective needs of energy efficient portable devices and has great advantages in the field of audio analog integration.
D类音频功率放大器具有高效、节能、数字化、体积小、重量轻的特点,适应便携设备高效节能的客观需求,从而在音频模拟集成领域具有很大的优势。
3.
The paper is based on the project“Theoretical Research on Key Techniques and Integrated Design of High Performance Class D Audio Power Amplifier”, after a detailed research on all kinds of common audio power amplifiers and their efficiency and distortion, an audio power amplifier XD2902 with high fidelity and high efficiency is designed.
论文基于西安电子科技大学的科研项目“高性能D类音频功率放大器关键技术的理论研究与集成设计”,在研究了各类音频功率放大器及其效率和失真机理的基础上,设计了一款基于∑-△调制技术的高效率、高保真的D类音频功率放大器XD2902。
4) class D DC-AC
D类DC-AC
1.
And two of key circuits of class D DC-AC resonant converter are also presented.
论文从该类芯片的D类DC-AC谐振转换工作模式出发,介绍了其中的两个核心线路:可控频率的波形发生器和电平移位电路的设计。
5) class D power amplifier
D类功放
1.
Combining with the principle of PWM power supply, the working principle of class D power amplifier is analyzed, and a way of establishing positron adjustable power supply based on class D power amplifier is put forward.
结合PWM电源的原理对D类功放的工作原理进行了分析,提出了在D类功放基础上构建PWM正负可调电源的方法,并在成品D类功放器件基础上实现经济实用的电源进行了成功的尝试。
6) type d sections
d类截面
1.
This paper analyses and compares the correct values of stability coefficient of steel compression members with section type d consisting of heavy gauge steel plates,and points out the mistakes of steel structure design code(GB50017-2003)in determining the stability coefficient of type d sections of compression members.
对由厚钢板组成的钢受压构件d类截面稳定系数的正确取值进行了分析、比较,指出了钢结构设计规范GB50017-2003中受压构件d类截面稳定系数曲线确定过程中的错误;并通过按不同规范对比设计的算例,探讨了d类截面受压钢构件在不同规范之间稳定承载力的差异。
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参考词条