V2EX linear regulator

Linear Regulator

释义 Definition(中文)

线性稳压器:一种通过“线性”方式(让内部功率器件工作在放大区)把输入电压稳定为较低且更恒定输出电压的电源电路/器件。优点是输出噪声低、纹波小、结构简单;缺点是效率较低,输入与输出电压差越大越发热。(常见变体:LDO 低压差线性稳压器。)

发音 Pronunciation (IPA)

/lnir rjletr/

例句 Examples

A linear regulator can power this sensor with low noise.
线性稳压器可以为这个传感器提供低噪声供电。

Because a linear regulator dissipates the voltage drop as heat, it may need a heat sink when the input voltage is much higher than the output.
由于线性稳压器会把输入与输出之间的电压差以热的形式消耗掉,当输入电压远高于输出电压时可能需要散热片。

词源 Etymology(中文)

linear 源自拉丁语 linea(线、线条),在电子学里引申为“按比例、连续变化、在线性区工作”;regulator 来自拉丁语 regulare(使规则、校正),表示“使……稳定/受控的装置”。合起来即“通过线性方式进行电压稳定的装置”。

相关词 Related Words

文学与著作中的用例 Literary Works(出现示例)

  • The Art of Electronics(Horowitz & Hill)在电源稳压章节中讨论线性稳压器与开关稳压器的取舍。
  • Practical Electronics for Inventors(Paul Scherz & Simon Monk)介绍三端线性稳压器、LDO 与散热计算。
  • Electronic Devices and Circuit Theory(Boylestad & Nashelsky)在稳压电源与反馈控制相关内容中涉及线性稳压概念。
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