我在争斗志
发表于 2025-3-21 19:23:52
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口味
发表于 2025-3-21 20:53:19
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切割
发表于 2025-3-22 00:46:59
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启发
发表于 2025-3-22 07:40:50
Transistor Switching Regulators,le leakage current when off, negligible voltage drop when on, and zero switching time, there is negligible power loss in the switch. With practical transistors, the dissipation in the transistor switch can be a very small fraction of the load power controlled.
CUR
发表于 2025-3-22 12:04:01
Transistor Inverters,se switching devices which can interrupt the flow of current. Presently, such inverters utilize the bipolar junction transistor (BJT), the field-effect transistor (FET), or the gate-turn-off thyristor (GTO). SCR thyristors are used in the more complicated forced commutated inverters discussed in Chapter 11.
CARE
发表于 2025-3-22 13:47:27
Phase-Controlled Rectifiers and Line-Commutated Inverters, input. The term . implies that current flows in only one direction in the transformer secondary windings. Figure 7–1 is also called a two-pulse rectifier since there are two dc output current pulses per cycle of the ac input frequency. Another name for the circuit of Fig. 7–1 is the single-phase, center-tap rectifier.
enchant
发表于 2025-3-22 19:11:25
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可忽略
发表于 2025-3-23 00:21:04
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公社
发表于 2025-3-23 04:54:30
Introduction,published by the American Institute of Electrical Engineers in February 1950, the first citation is for the year 1903. Many technical articles and several books on the subject were published during the period from 1930–1947. These dealt primarily with the application of grid-controlled gas-filled tu
anaphylaxis
发表于 2025-3-23 09:26:19
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