V2EX voltage-mode control

Voltage-Mode Control

Definition / 定义

电压模式控制:一种开关电源(如 DC-DC 变换器)常用的控制方法。它以输出电压误差为主要调节依据,通过误差放大器生成控制信号,再与固定频率的锯齿波/三角波比较来调节PWM 占空比,从而稳定输出电压。(在电流模式控制之外,它是另一大类常见方案。)

Pronunciation / 发音

/voltd mod kntrol/

Examples / 例句

Voltage-mode control is easy to implement in many PWM controllers.
电压模式控制在许多 PWM 控制器中很容易实现。

In a buck converter, voltage-mode control regulates the output by adjusting duty cycle based on the voltage error signal.
在降压型变换器中,电压模式控制通过根据电压误差信号调节占空比来稳定输出。

Etymology / 词源

该术语由三部分构成:voltage(电压)+ mode(模式)+ control(控制)。其命名思路直观:强调控制环路主要“看的是电压(而不是电流)”。作为电力电子领域的工程术语,它随 PWM 开关电源与控制理论在 20 世纪后期的广泛应用而普及。

Related Words / 相关词汇

Literary Works / 文学作品

  • Power Electronics: Converters, Applications, and Design(Ned Mohan, Tore M. Undeland, William P. Robbins)
  • Switching Power Supply Design(Abraham I. Pressman)
  • Fundamentals of Power Electronics(Robert W. Erickson, Dragan Maksimovi)
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