功放是音响设备重要的系统，它可以起到扩大音讯的作用，一般在使用音响的时候都会用到该系统，那么大家知道音响设备的攻放是如何扩大的吗?对此了解多少呢?是不是不清楚呢?没关系，接下来我们将为大家介绍一下，希望能够帮助到大家。
Power amplifier is an important system of professional audio equipment, it can play the role of expanding the audio, generally in the use of audio will use the system, so do you know how to expand the audio equipment? How much do you know about this? Is it not clear? It doesn't matter. Next, we will introduce it to you, hoping to help you.
音响系统的&濒诲辩耻辞;讯源&谤诲辩耻辞;不论是模拟或是数字形式，都是替无法自己产出音乐的音响系统接收或播放音乐内容的区块，有了讯源播放或接收音乐讯号我们才能从音响系统听到音乐。不过讯源电路或器材是无法提供足够的功率来驱动扬声器甚或是耳机的，家庭办迟惫音响厂家所以音响系统还需要功放才能驱动扬声装置发出声音。
The "source" of the sound system, whether in analog or digital form, is a block that can receive or play music content for the sound system that cannot produce music by itself. With the source playing or receiving music signals, we can hear music from the sound system. However, the source circuit or equipment can not provide enough power to drive the speaker or even the headset, so the home KTV audio manufacturers still need power amplifier to drive the sound device to produce sound.
顾名思义&濒诲辩耻辞;功放&谤诲辩耻辞;就是把讯源的讯号扩大来驱动扬声装置，家庭办迟惫音响不过实际上功放执行的工作并不是将讯号扩大，得更明白一点就是讯号本身其实是无法扩大的。音响设备的规格我们可以透过被动形式的衰减组件如电阻等来损耗原本讯号的强度，但事实上却没有任何组件甚或电路能够去放大讯号。
As the name suggests, "power amplifier" is to expand the signal of the source to drive the loudspeaker device. But in fact, the work of power amplifier is not to expand the signal. It is more clear that the signal itself cannot be expanded. According to the specifications of professional audio equipment, we can use passive attenuation components such as resistors to reduce the strength of the original signal, but in fact, no component or circuit can amplify the signal.
音响设备
Professional audio equipment
说来扩大电路真的工作方式并不是直接放大讯号，而是依照原来的讯号拷贝出更高电压或更大电流的讯号，端看电路的设定来决定讯号输出的情况。一般来说要驱动扬声器负载的条件，讯源讯号的电压与电流都要增强，家庭办迟惫音响特点功放的电路设计上就会在讯号拷贝时将电压与电流两方面予以提升，电子学上称之为&濒诲辩耻辞;增益&谤诲辩耻辞;。
In other words, the real working mode of the amplifier is not to amplify the signal directly, but to copy the signal with higher voltage or current according to the original signal. The output of the signal depends on the setting of the circuit. Generally speaking, in order to drive the load of the loudspeaker, the voltage and current of the source signal should be enhanced. In the circuit design of the home KTV audio characteristic power amplifier, the voltage and current will be improved when the signal is copied, which is called "gain" in electronics.
不过为了避免让电路与组件在太严苛的条件下工作以获得更好的工作性能，诸如低失真、低噪声等结果，通常会将电压增益与电流增益电路分开制作。此外诸如讯源的选择、音量控制与高低音音质控制等功放的常见操作功能，都会规划在电压增益电路的区块;因为音乐讯号在此低电流的阶段进行处理，会比在大电流的情况之下要来得效果更好成本也更低。
However, in order to avoid the circuit and components working in too harsh conditions to obtain better performance, such as low distortion, low noise and other results, voltage gain and current gain circuits are usually made separately. In addition, the common operation functions of power amplifier, such as source selection, volume control and high and low tone quality control, will be planned in the voltage gain circuit block; Because the music signal processing in this low current stage will be better than in the case of high current, and the cost is lower.
音响设备的攻放是想要扩大音响讯号，要控制好音响的音量和音质，规划好电路的设置，做好相应的处理，减少使用成本，大家清楚了吗?如若想要在家庭内安装音响设备，可以和山东和声智能科技有限公司交流交流。
The purpose of professional audio equipment is to expand the sound signal, control the sound volume and quality, plan the circuit settings, do the corresponding processing, and reduce the cost of use. Are you clear? If you want to install audio equipment in your home, you can communicate with Shandong harmony Intelligent Technology Co., Ltd.
