翻訳と辞書 Words near each other ・ Seminal colliculus ・ Seminal Live ・ Seminal Rats ・ Seminal RNase ・ Seminal tract ・ Seminal Vampires and Maggot Men ・ Seminal vesicle ・ Seminaphtharhodafluor ・ Seminar ・ Seminar (album) ・ Seminar (disambiguation) ・ Seminar (play) ・ Seminar caller ・ Seminar for Applied Mathematics ・ Seminar of Amateur composers ・ Semiconductor curve tracer ・ Semiconductor detector ・ Semiconductor device ・ Semiconductor device fabrication ・ Semiconductor device modeling ・ Semiconductor Equipment and Materials International ・ Semiconductor equipment sales leaders by year ・ Semiconductor fabrication plant ・ Semiconductor fault diagnostics ・ Semiconductor industry ・ Semiconductor Industry Association ・ Semiconductor intellectual property ・ Semiconductor intellectual property core ・ Semiconductor International ・ Semiconductor laser theory 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 Semiconductor curve tracer ： ウィキペディア英語版 Semiconductor curve tracer A semiconductor curve tracer is a specialised piece of electronic test equipment used to analyze the characteristics of discrete semiconductor devices such as diodes, transistors, and thyristors. Based on an oscilloscope, the device also contains voltage and current sources that can be used to stimulate the device under test (DUT). == Operation == The function is to apply a swept (automatically continuously varying with time) voltage to two terminals of the device under test, and measuring the amount of current that the device permits to flow at each voltage. This so-called V-I (voltage versus current) graph is displayed on an oscilloscope screen. Configuration includes the maximum voltage applied, the polarity of the voltage applied (including the automatic application of both positive and negative polarities), and the resistance inserted in series with the device. The main terminal voltage can often be swept up to several thousand volts, with load currents of tens of amps available at lower voltages. For two terminal devices (such as diodes and DIACs), this is sufficient to fully characterize the device. The curve tracer can display all of the interesting parameters such as the diode's forward voltage, reverse leakage current, reverse breakdown voltage, and so on. For triggerable devices such as DIACs, the forward and reverse trigger voltages will be clearly displayed. The discontinuity caused by negative resistance devices (such as tunnel diodes) can also be seen. Three-terminal devices such as transistors and FETs also use a connection to the control terminal of the device being tested such as the Base or Gate terminal. For transistors and other current based devices, the base or other control terminal current is stepped. For field effect transistors, a stepped voltage is used instead. By sweeping the voltage through the configured range of main terminal voltages, for each voltage step of the control signal, a group of V-I curves is generated automatically. This group of curves makes it very easy to determine the gain of a transistor, or the trigger voltage of a thyristor or TRIAC. 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「Semiconductor curve tracer」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.