阻抗匹配變壓器

Page 5 of 6 www.lundahl.se Chapter 5: Understanding ImpedanceIn Audio Transformers transformers provide galvanic isolation. It helps to think of a transformer as a lever. If the fulcrum is in the middle, like in a see-saw, than neither the voltage nor the

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  • 2 愈快(即頻率愈高)或線圈匝數愈多,其感應電 動勢就愈大,而次圈感應電動勢即與初圈磁通 量變化成比例。藉由上述基本原理,便可使變壓器達到 變壓﹑變流以及阻抗匹配的目的,本實驗將觀...
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  • 變壓器初、次級接入適當的阻抗Ro和Ri,使變壓器初、次級阻抗匹配,則Ro和Ri的比值稱爲初、次級阻抗比。在阻抗匹配的情況下,變壓器工作在最佳狀態,傳輸效率最高。 五、低頻變壓器的技...
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  • 變壓器的線圈具有直流阻抗,因此以三用電表便可測量變壓器的好壞,甚至由阻值的大小可判斷其接點。 由於變壓器使用線圈且為市電110V轉成12V的降壓變壓器,根據變壓器公式,初級圈的阻抗...
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