Coenzyme
发表于 2025-3-21 18:00:09
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MAIM
发表于 2025-3-21 23:35:17
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MOTIF
发表于 2025-3-22 00:44:00
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改正
发表于 2025-3-22 05:44:59
The junction diode, ohmic metallic contacts to the ends of a semiconductor crystal which has a sharp p-n junction inside it. Such a device behaves like a rectifier allowing a large current to flow in one direction, and a negligible current to flow in the other direction.
misanthrope
发表于 2025-3-22 09:58:05
Other types of semiconductor diodes,iconductor inside a metal-semiconductor diode must however, be a rectifying one. Such a diode is often called a Schottky diode. The external voltage-current characteristic curve of a Schottky diode is similar to that of a junction diode, but the physical mechanisms involved in the conduction process are more complicated.
鲁莽
发表于 2025-3-22 15:51:00
The transistor at high frequencies,f the short-circuit current gain parameter at high frequencies. The equivalent circuit used to represent the high frequency behaviour of a transistor has therefore to be different from the circuit used at low frequencies.
鲁莽
发表于 2025-3-22 20:45:03
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judicial
发表于 2025-3-22 22:47:01
https://doi.org/10.1007/978-1-349-21707-6The transistor is widely used as an amplifying device, and can provide voltage gain, current gain, and power gain. The basic amplifying action may be understood by considering the circuit of Fig 6.1. This circuit is known as the common base circuit due to the fact that the base terminal is common to both input and output circuits.
音乐等
发表于 2025-3-23 02:03:28
https://doi.org/10.1007/978-94-009-1820-7The first step in designing a transistor amplifier stage is to establish the D.C operating conditions by using a graphical method as shown in the last chapter. After this has been done, small signals which are applied to the input of a transistor circuit will be amplified with reasonable linearity.
Bricklayer
发表于 2025-3-23 07:18:29
https://doi.org/10.1007/978-3-030-32284-7The characteristics of an amplifier can be modified and improved considerably by the use of negative feedback. In this process a part of the output signal is combined with the input signal. If the output signal increases in magnitude, then the effect of the negative feedback signal is such that it opposes the increase in the output signal.