Bati (elektronika): Perbedaan antara revisi
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Di dalam [[elektronika]], '''bati''' (bahasa Inggris: ''[[:en:gain|gain]]'') adalah satuan kemampuan sebuah [[sirkuit listrik|rangkaian]] (seringkali berupa [[penguat]]) untuk memperbesar [[daya]] atau [[amplitudo]] suatu [[sinyal (elektrik)|sinyal]] dari masukan ke keluaran. Bati biasanya didefinisikan sebagai rata-rata [[perbagian|hasil bagi]] antara [[pensinyalan (telekomunikasi)|keluaran sinyal]] dari suatu sistem dengan masukan sinyal pada sistem yang sama. Bati juga dapat didefinisikan pada skala logaritmik, dalam suku-suku [[logaritma]] desimal pada hasil bagi ("bati [[desibel|dB]]") yang sama. Bati
Thus, the term ''gain'' on its own is [[ambiguity|ambiguous]]. For example, "a gain of five" may imply that either the [[voltage]], [[Electric current|current]] or the [[Electric power|power]] is increased by a factor of five, although ''most often'' this will mean a voltage gain of five for audio and general purpose [[amplifier]]s, especially [[operational amplifiers]], but a power gain for [[Radio frequency|RF]] amplifiers, and for directional aerials will refer to a signal power change compared with a simple dipole.<!-- I should check that latter clause in an ARRL handbook! --> Furthermore, the term gain is also applied in systems such as [[sensor]]s where the input and output have different units; in such cases the gain units must be specified, as in "5 microvolts per photon" for the [[responsivity]] of a photosensor. The "gain" of a [[bipolar transistor]] normally refers to forward current transfer ratio, either ''h''<sub>FE</sub> ("Beta", the static ratio of ''I''<sub>''c''</sub> divided by ''I''<sub>b</sub> at some operating point), or sometimes ''h''<sub>fe</sub> (the small-signal current gain, the slope of the graph of ''I''<sub>''c''</sub> against ''I''<sub>''b''</sub> at a point).
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