What is alternating current (AC)?

February 14, 2025common problems 3380

交流（AC）是一种极性周期性地反转并且幅度随时间不断变化的电流。与直流（DC）电相比，交流电的发电和输电成本更低，效率更高，因此企业和住宅通常使用交流电。在传输过程中，变压器可以通过提高或降低交流线路的电压，降低功率损耗。

交流电是一种家用电能——当消费者将电视等家用电器和其他器件的电源插头插入墙壁上的插座时，便能使用交流电。交流电可以转换为直流电，供几乎所有电子器件使用。

What is the importance of waveform sequencing?
February 14, 2025 383
Waveform sequencing lets you create multiple configured waveforms that contain multiple common segments. Sorting lets you build complex, long waveforms using as little instrument memory as possible. Waveform sequencing lets you save storage capacity by replaying shorter waveforms at different locations on the signal as needed. Many tests require long waveform memory records. The required record length...
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What is an Arbitrary Waveform Generator (AWG)?
February 14, 2025 492
Arbitrary waveform generators are a type of signal generator that generate realistic waveforms and provide a wide range of excitation signals. The various types of signals they generate are often used to stress test devices for communication protocols. ,
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Is it possible to generate DC power using an AC power supply?
February 14, 2025 521
Can. Many AC power sources can produce DC directly, or by superimposing a DC bias on the AC waveform. ,
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What does the best network analyzer look like?
February 14, 2025 471
The selection criteria for a VNA depends heavily on the application or usage scenario. Typically, selection criteria include frequency range, number of ports required (from 2 to 24 (multiport) and even 48 (with switching matrix)), output power, and instrument class from economy to handheld to high-end. Vector network analyzers are both signal generators and receivers...
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