日韩美香港a一级毛片-日韩免费-日韩免费高清一级毛片-日韩免费高清一级毛片在线-久久在草-久久综合爱

Favorite | About | Memorabilia | Feedback | Recruitment     Welcome to Soundwell Electronic Products (Guangdong) Co., Ltd.!
International Hotline:+86 182-1927-6011

Soundwell Electronic Products (Guangdong) Co., Ltd.
A one-stop manufacturer of encoders, potentiometers and switches with a history of 33 years.

Soundwell DYNAMIC

Soundwell Electronic Products (Guangdong) Co., Ltd.

TEL:+86(769)-38833333-881
Fax:sw@soundwell-cn.com
MAIL:soundwell868@soundwell.cn
Address:Guangdong Province Dongguan city Tangxia Town Phoenix Gang Sheng Wei Industrial Park

Stereo preamp volume Pot how the election?

Article Source:m.888336.cn  Edit:Soundwell  issuing time:2016-04-21

In audio electronics design friends, I believe we are not unfamiliar to the front stage potentiometer. But making audio electronics design, pre-potentiometer resistance is determined to make a novice design is very distressing problem! Common pre-Pot is how much? Select the number resistance potentiometers in order to meet the design requirements of the circuit it?
Today, Granville electronic potentiometer resistance on this issue to determine the analysis.

Generally speaking, the audio amplifier circuit class potentiometer resistance is usually 50K or 100K. Potentiometer is a sliding contact-type variable resistor! Whose resistance changes depending on the needs can be divided into linear potentiometer (antilog) three kinds of potentiometer potentiometer logarithmic, exponential type.
In fact, the sound volume potentiometer is a logarithmic potentiometer, its resistance is generally between 47-100 kilohms. During construction, mostly carbon brush chip or wire brush style. The multi-filament high-end potential, the potential of such a performance far superior to common reed potentiometer. The actual choice, we should be determined before the device according to the direction of the output impedance of the amplifier. Example: Most of the audio CD, DAC, DVD, deck, etc., the output impedance close as 100K, so the first stage of general potentiometer 100K; and most of the previous stage output impedance is 50K, so the multi-stage amplifier volume potentiometer to 50K; In this case, Granville electronic reminder, where some special types, such as: 10K - 470K has. This approach is to be able to try before and after impedance matching, reduced distortion. Usually coaxial output line, the output device in the output interface to 75 ohm resistor in series or in parallel, DAC in the input interface 75 ohm resistor in series or in parallel, coaxial cable impedance is 75 ohms. It is the same reason, but also for impedance matching.
Volume potentiometer as a pre-load, the general design of the output impedance matches the design stage before the actual application that allows a certain range selection. The original use of potentiometers 50K instead of 100K, in conditions not very good situation is acceptable.
Today, newcomers are designed for stereo volume potentiometer resistance level before selecting a certain direction and there is no idea of ??it?
If you need more, please login http://m.888336.cn Learn More Oh!

Soundwell Electronic Style album

  •  Soundwell Team Style
 

Soundwell Employees say:

For others, Soundwell Company is an enterprise; for us, Soundwell Company is a home. Each employee of Soundwell Company has an active and progressive mind, has great passion for the life and work. Thanks for Soundwell Company to provide the development platform. In future, it is hoped that all of us can make joint efforts and progress.>>Click here to enter the album

Soundwell Automation Division
Soundwell Automation Division
Soundwell Company has become a recognized and leading enterprise in the industry, and its products can represent the top technical level amount counterparts in China. ... [See details]
Home | Potentiometer | Encoder | Switch | Products | About | Video | On-site Visit | Equipment | Contact |
Solemnly declare:Prohibit unauthorized reproduced excerpts, if violated, legal liability Technical Support: Dongguan Website
  • Back to top
  • +86 769-38833333-881
  • +86 18219276011
  • Miss Li
  • sw@soundwell-cn.com
  • WeChat
主站蜘蛛池模板: 国产精品永久免费视频观看 | 国产人伦视频在线观看 | 曰皮在线播放免费 | 小娜的荡高h放荡日记 | 一级黄色欧美 | 国产一区二区三区在线观看视频 | 日韩一区二区三区在线观看 | 日韩欧国产精品一区综合无码 | 1769国产精品视频免费观看 | 成人午夜免费在线观看 | 一个人看的视频在线www高清 | 亚洲精品欧美精品日韩精品 | eee在线播放成人免费 | 曰韩精品 | 免费a级人成a大片在线观看 | 2021精品国内一区视频自线 | 最新国产精品亚洲二区 | 免费看国产一级片 | 日本在线视频www色 日本综合在线 | 伦理在线观看 | 人人揉| 久久久香蕉| 色视频国产 | 日韩伦理在线免费观看 | 一插综合网 | 日韩一区二区三区在线视频 | 97精品视频在线观看 | 免费看真人a一级毛片 | 一级毛片免费在线 | 好色视频 | 六度国产福利午夜视频黄瓜视频 | 黄色最新网址 | 特级淫片日本高清视频 | 狠狠色狠狠色综合久久第一次 | 国产精品视频第一区二区 | www.九九热 | 簧片在线免费观看 | 露脸超嫩97后在线播放 | 免费看三级黄色片 | 日韩手机在线免费视频 | 一区二区影院 |