加冕
发表于 2025-3-21 16:39:57
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observatory
发表于 2025-3-21 21:35:24
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Noisome
发表于 2025-3-22 01:16:26
Semiconductor diodes and applications,igh in the other direction. The diode is thus a . device. To obtain maximum current in the low resistance or forward direction, the anode must be at a . potential with respect to the cathode. A graph of voltage against current has the shape shown in figure 3.1 for a semiconductor diode. Notice that
Freeze
发表于 2025-3-22 06:10:53
Transistors and other semiconductor devices,duction; and the . or . transistor (FET), which uses either electron . hole conduction. (It should be remembered that hole conduction also uses electrons as charge-carriers but that these electrons are those normally in the bond between atoms; electron conduction uses ‘free’ electrons, which do not
流行
发表于 2025-3-22 12:19:46
Voltage amplifiers,io of this output voltage to the voltage controlling the current is then the gain of the amplifier. The circuit across which the output voltage is developed, which is called the ., may be a resistor, a ., or even another transistor, depending upon the type of signal that is to be amplified. Of the t
强壮
发表于 2025-3-22 15:54:20
Waveform generation and shaping,rs form a basic part of a large number of electronic systems ranging from radio and television transmitting and receiving systems to industrial control and measuring systems. The basic principle of most oscillators is that positive feedback is applied to an amplifier so that it provides its own inpu
强壮
发表于 2025-3-22 18:25:21
The cathode-ray tube and simple mechanisms, electronic games systems and the cathode-ray oscilloscope (CRO). The actual construction of a particular tube depends upon the use for which it is intended and various extra internal items may be added to the basic tube. As an example a colour television tube is clearly more complex than one to be
mydriatic
发表于 2025-3-22 22:42:34
Power supplies,ors. Sometimes more than one type or a combination of them is used, depending upon the nature of the system. Small portable systems (for example, transistorised radios, televisions and certain telecommunications equipment) invariably use batteries; larger fixed systems derive their power from the na
Embolic-Stroke
发表于 2025-3-23 03:47:04
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搜集
发表于 2025-3-23 08:30:02
https://doi.org/10.1007/978-3-531-90723-9ommon emitter, common base and common collector (or emitter follower); and for the FET there is the common source, common gate and common drain (or source follower). It is found on comparison.between similar modes (for example, common emitter, common source) that the overall amplifier characteristic