V2EX reference voltage

Reference Voltage

Definition / 定义

参考电压:在电路或系统中作为“基准”的电压值,用来与其他电压进行比较、校准或作为转换(如 ADC/DAC)的尺度标准。常见于稳压基准源、比较器、运算放大器、模数/数模转换器等场景。

Pronunciation / 发音

/rfrns voltd/

Examples / 例句

Set the reference voltage to 2.5 V before you start measuring.
在开始测量前,把参考电压设置为 2.5 伏。

If the reference voltage drifts with temperature, the ADC readings can become inaccurate even when the input signal is stable.
如果参考电压会随温度漂移,即使输入信号稳定,ADC 的读数也可能变得不准确。

Etymology / 词源

reference 源自“refer(提及、参照)”的概念,表示“用来对照的基准”;voltage 来自“volt(伏特)”,以物理学家伏打(Alessandro Volta)命名,表示电势差。合起来 reference voltage 就是“用于参照比较的电压基准”。

Related Words / 相关词

Notable Works / 著作例子

  • The Art of Electronics(Horowitz & Hill)
  • CMOS Analog Circuit Design(Phillip E. Allen & Douglas R. Holberg)
  • Microelectronic Circuits(Sedra/Smith)
  • The AVR Microcontroller and Embedded Systems(Mazidi 等)
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