翻訳と辞書 Words near each other ・ Grounds for divorce ・ Grounds for Divorce (film) ・ Grounds for Divorce (song) ・ Grounds for divorce (United States) ・ Grounds for Marriage ・ Grounds for Sculpture ・ Groundscraper ・ Groundscraper thrush ・ Groundsel ・ Groundshare ・ Groundskeeper Willie ・ Ground meat ・ Ground Mobile Forces ・ Ground Mobility Vehicle ・ Ground Mower ・ Ground noise ・ Ground nozzle ・ Ground nut soup ・ Ground Nuts Order ・ Ground Observer Corps ・ Ground of Humania 2012.3.20 in Makuhari ・ Ground Operations ・ Ground out ・ Ground out (baseball) ・ Ground paintings ・ Ground pangolin ・ Ground Parachute Extraction System ・ Ground pine ・ Ground pink ・ Ground plane Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Ground noise ： ウィキペディア英語版 Ground noise In electronics, ground noise is electronic noise on the ground wires or busses of an electronic circuit. In audio, radio, and digital equipment it represents an undesirable condition since the noise can get into the signal path of the device, appearing as interference in the output. Like other types of electronic noise it can manifest in audio equipment as a hum, hiss, distortion or other unwanted sound in the speakers, in analog video equipment as "snow" on the screen, and in digital circuits and control systems as erratic or faulty operation or computer "crashes". A major source of ground noise is ground loops created by improper interconnection of audio, video or computer components. ==Common mode rejection== Most modern audio amplifiers incorporate designs which implement a feature called "common mode rejection". Common mode rejection provides that the amplifier has two input connections: a negative connection (sometimes called "ground" or "signal ground") and a positive input. The amplifier (if properly designed and implemented) will reject signals at its inputs so long as the signals appear at both inputs in equal phase and amplitude, so called common mode signals. Thus, these signals are in "common mode" because they arrive equally common to both inputs. In contrast the amplifier is designed to amplify the differences in input signals applied to its input terminals. Leveraging common mode rejection is the basis for the methods described here to avoid ground noise and improve rejection of unwanted small signal noise and interference. Ground noise appears at the negative input of an amplifier for several reasons, including ground loop. Other causes can deliver a different input signal to the amplifier's negative input terminal and not also simultaneously to the amplifier's positive input terminal. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Ground noise」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.