Question

帮忙翻译成英文，谢谢！

数字功放”的基本电路是早已存在的D类放大器（国内称丁类放大器）。以前，由于价格和技术上的原因，这种放大电路只是在实验室或高价位的测试仪器中应用。这几年的技术发展使数字功放的元件集成到一两块芯片中，价格也在不断下降。理论证明，D类放大器的效率可达到100％。然而，迄今还没有找到理想的开关元件，难免会产生一部分功率损耗，如果使用的器件不良，损耗就会更大些。但是不管怎样，它的放大效率还是达到90％以上。此外，数字功放具有失真小、噪音低、动态范围大等特点，在音质的透明度、解析力，背景的宁静、低频的震撼力度方面是传统功放不可比拟的。
由于功耗和体积的优势，数字功放首先在能源有限的汽车音响和要求较高的重低音有源音箱中得到应用。随着DVD家庭影院、迷你音响系统、机顶盒、个人电脑、LCD电视、平板显示器和移动电话等消费类产品日新月异的发展，尤其是SACD、DVD Audio等一些高采样频率的新音源规格的出现，以及音响系统从立体声到多声道环绕系统的进化，都加速了数字功放的发展。近年来，数字功放的价格呈不断下降的趋势，有关这方面的专利也层出不穷。

Answer 1

Digital amplifier "is the basic circuit have been in existence for the Class-D amplifier (domestic said Group D amplifier). Ago, because of price and technical reasons, this amplifier is only in the laboratory or high-priced test equipment in the application. This Years of technical development of digital amplifier components into 12 chips, prices are falling. Theoretical proof, D class amplifier can achieve 100 percent efficiency, however, has not yet found the ideal switching components, it is inevitable Will be part of a power loss, if you use the device bad, some loss will be greater. But in any case, its efficiency or enlarge more than 90 percent. In addition, digital amp with distortion of small, low noise, dynamic range, and other characteristics of the , In the quality of transparency, Jiexi Li, the background quiet, low-frequency shock to the intensity of the traditional power amplifier is unparalleled.
As the power and size advantages of digital amplifier in the first limited energy and the car stereo for better bass speakers active in the applications. With the DVD home theater, mini-audio systems, set-top boxes, personal computers, LCD TV, flat panel displays and mobile phones and other consumer products ever-changing development, especially SACD, DVD Audio, and some other high-sampling frequency of the emergence of new audio specifications, and From the stereo sound system to multi-channel surround system of evolution, has accelerated the development of digital amplifier. In recent years, the price of a digital amplifier downward trend, in this respect patent also emerging.

Answer 2

Digital amplifier "is the basic circuit have been in existence for the Class-D amplifier (domestic said Group D amplifier). Ago, because of price and technical reasons, this amplifier is only in the laboratory or high-priced test equipment in the application. This Years of technical development of digital amplifier components into 12 chips, prices are falling. Theoretical proof, D class amplifier can achieve 100 percent efficiency, however, has not yet found the ideal switching components, it is inevitable Will be part of a power loss, if you use the device bad, some loss will be greater. But in any case, its efficiency or enlarge more than 90 percent. In addition, digital amp with distortion of small, low noise, dynamic range, and other characteristics of the , In the quality of transparency, Jiexi Li, the background quiet, low-frequency shock to the intensity of the traditional power amplifier is unparalleled.

Answer 3

Digital amplifier "is the basic circuit have been in existence for the Class-D amplifier (domestic said Group D amplifier). Ago, because of price and technical reasons, this amplifier is only in the laboratory or high-priced test equipment in the application. This Years of technical development of digital amplifier components into 12 chips, prices are falling. Theoretical proof, D class amplifier can achieve 100 percent efficiency, however, has not yet found the ideal switching components, it is inevitable Will be part of a power loss, if you use the device bad, some loss will be greater. But in any case, its efficiency or enlarge more than 90 percent. In addition, digital amp with distortion of small, low noise, dynamic range, and other characteristics of the , In the quality of transparency, Jiexi Li, the background quiet, low-frequency shock to the intensity of the traditional power amplifier is unparalleled.
As the power and size advantages of digital amplifier in the first limited energy and the car stereo for better bass speakers active in the applications. With the DVD home theater, mini-audio systems, set-top boxes, personal computers, LCD TV, flat panel displays and mobile phones and other consumer products ever-changing development, especially SACD, DVD Audio, and some other high-sampling frequency of the emergence of new audio specifications, and From the stereo sound system to multi-channel surround system of evolution, has accelerated the development of digital amplifier. In recent years, the price of a digital amplifier the declining trend in this regard is also an endless stream of patent.