V2EX current steering

Current Steering

定义 Definition

电流转向(电流舵):一种模拟/混合信号电路技术,通过开关晶体管或差分对把几乎恒定的电流在不同支路之间“切换/分配”,以实现高速、低电压摆幅的信号处理(常见于 DAC、比较器、混频器、逻辑电路等)。在更广义的语境中,也可指将电流引导到特定路径的电流控制方法。

发音 Pronunciation (IPA)

/krnt str/

例句 Examples

Current steering is widely used in high-speed DACs.
电流转向广泛用于高速数模转换器(DAC)中。

By using current steering, the circuit switches a constant bias current between branches to reduce voltage swing and improve speed.
通过电流转向,电路在不同支路之间切换恒定的偏置电流,从而减小电压摆幅并提高速度。

词源 Etymology

current 源自拉丁语 currere(“奔跑、流动”),引申为“流动的电”;steering 源自古英语 steoran(“引导、掌舵”)。合起来直译为“引导电流的方向/路径”,在电子工程中固定用来指“用开关把电流导向不同支路”的结构与方法。

相关词 Related Words

文献与作品 Literary Works

  • Analysis and Design of Analog Integrated Circuits(Paul R. Gray, Paul J. Hurst, Stephen H. Lewis, Robert G. Meyer)讨论电流舵/电流转向结构在集成模拟电路中的应用。
  • CMOS Data Converters for Communications(Mikael Gustavsson, J. Jacob Wikner, Nianxiong Tan)涉及电流转向型 DAC 的设计要点与性能权衡。
  • The Design of CMOS Radio-Frequency Integrated Circuits(Thomas H. Lee)在射频电路与高速开关电流路径等主题中常出现相关表述与思想。
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