翻訳と辞書 Words near each other ・ Volta River Authority ・ Volta Star ・ Volta Tour ・ Volta Tower ・ Volta à cidade do Funchal ・ Volta, California ・ Volta-Bani War ・ Voltaconger ・ Voltage ・ Voltage (disambiguation) ・ Voltage AC ・ Voltage clamp ・ Voltage compensation ・ Voltage controller ・ Voltage converter ・ Voltage divider ・ Voltage doubler ・ Voltage droop ・ Voltage drop ・ Voltage Fighter Gowcaizer ・ Voltage graph ・ Voltage ladder ・ Voltage multiplier ・ Voltage Musique Records ・ Voltage optimisation ・ Voltage Pictures ・ Voltage portal ・ Voltage reduction ・ Voltage reference ・ Voltage regulation 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 Voltage divider ： ウィキペディア英語版 Voltage divider In electronics, a voltage divider (also known as a potential divider) is a passive linear circuit that produces an output voltage (''V''out) that is a fraction of its input voltage (''V''in). Voltage division is the result of distributing the input voltage among the components of the divider. A simple example of a voltage divider is two resistors connected in series, with the input voltage applied across the resistor pair and the output voltage emerging from the connection between them. Resistor voltage dividers are commonly used to create reference voltages, or to reduce the magnitude of a voltage so it can be measured, and may also be used as signal attenuators at low frequencies. For direct current and relatively low frequencies, a voltage divider may be sufficiently accurate if made only of resistors; where frequency response over a wide range is required (such as in an oscilloscope probe), a voltage divider may have capacitive elements added to compensate load capacitance. In electric power transmission, a capacitive voltage divider is used for measurement of high voltage. == General case == A voltage divider referenced to ground is created by connecting two electrical impedances in series, as shown in Figure 1. The input voltage is applied across the series impedances Z1 and Z2 and the output is the voltage across Z2. Z1 and Z2 may be composed of any combination of elements such as resistors, inductors and capacitors. If the current in the output wire is zero then the relationship between the input voltage, Vin, and the output voltage, Vout, is: :$$ V_\mathrm = \frac \cdot V_\mathrm Proof (using Ohm's Law): :$V\_\backslash mathrm\; =\; I\backslash cdot(Z\_1+Z\_2)$ :$V\_\backslash mathrm\; =\; I\backslash cdot\; Z\_2$ :$I\; =\; \backslash frac$ :$V\_\backslash mathrm\; =\; V\_\backslash mathrm\; \backslash cdot\backslash frac$ The transfer function (also known as the divider's voltage ratio) of this circuit is: :$$ H = \frac } = \frac In general this transfer function is a complex, rational function of frequency. 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「Voltage divider」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.