In these expressions ,9 = q/(2k_.;T). Ip is the amplitude of the curre terjemahan - In these expressions ,9 = q/(2k_.;T). Ip is the amplitude of the curre Bahasa Indonesia Bagaimana mengatakan

In these expressions ,9 = q/(2k_.;T

In these expressions ,9 = q/(2k_.;T). Ip is the amplitude of the current step
function used to drive the LED, t‘, is the diode saturation current, and T is the
minority carrier lifetime. These expressions show that the rise time decreases
with increasing current. In the high-current limit the rise times depend only on
the carrier lifetime, so that t1/2 = T ln 2 and t10-90 = T- ln 9. The rise time can
be reduced considerably by external means such as current peakirig. If the
current rises to a point in excess of the desired level for a very short time and
then decays back to the desired level, as is shown in Fig. 4-16, a reduction in rise
time to t10-90 = 0.55T has been achieved. Similarly the 90- to 10-percent fall
time can be made considerably shorter than T ln 9 by applying a negative bias
for a short time after the pulse to sweep out the injected carriers. In addition, as
noted in Sec. 4.2.2, the application of a small, constant forward bias on the LED
minimizes the delay time of the onset of optical Output.

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Hasil (Bahasa Indonesia) 1: [Salinan]
Disalin!
In these expressions ,9 = q/(2k_.;T). Ip is the amplitude of the current stepfunction used to drive the LED, t‘, is the diode saturation current, and T is theminority carrier lifetime. These expressions show that the rise time decreaseswith increasing current. In the high-current limit the rise times depend only onthe carrier lifetime, so that t1/2 = T ln 2 and t10-90 = T- ln 9. The rise time canbe reduced considerably by external means such as current peakirig. If thecurrent rises to a point in excess of the desired level for a very short time andthen decays back to the desired level, as is shown in Fig. 4-16, a reduction in risetime to t10-90 = 0.55T has been achieved. Similarly the 90- to 10-percent falltime can be made considerably shorter than T ln 9 by applying a negative biasfor a short time after the pulse to sweep out the injected carriers. In addition, asnoted in Sec. 4.2.2, the application of a small, constant forward bias on the LEDminimizes the delay time of the onset of optical Output.
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Hasil (Bahasa Indonesia) 2:[Salinan]
Disalin!
Dalam ungkapan ini, 9 = q / (2k _ .; T). Ip adalah amplitudo langkah saat ini
fungsi yang digunakan untuk menggerakkan LED, t ', adalah dioda arus saturasi, dan T adalah
seumur hidup pembawa minoritas. Ekspresi ini menunjukkan bahwa waktu naik menurun
dengan meningkatnya arus. Dalam batas tinggi saat kali kenaikan hanya tergantung pada
umur pembawa, sehingga t1 / 2 = T ln 2 dan t10-90 = T ln 9. waktu naik dapat
dikurangi jauh dengan cara eksternal seperti peakirig saat ini. Jika
naik saat ke titik melebihi tingkat yang diinginkan untuk waktu yang sangat singkat dan
kemudian meluruh kembali ke tingkat yang diinginkan, seperti yang ditunjukkan pada Gambar. 4-16, penurunan kenaikan
waktu untuk t10-90 = 0.55T telah dicapai. Demikian pula 90 hingga 10 persen jatuh
waktu dapat dibuat jauh lebih pendek dari T ln 9 dengan menerapkan bias negatif
untuk waktu yang singkat setelah pulsa untuk menyapu pembawa disuntikkan. Selain itu, seperti
dicatat dalam Sec. 4.2.2, aplikasi kecil, bias maju konstan pada LED
meminimalkan waktu tunda dari awal output optik.

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