介绍了一种适用于户外电网远程监测监控的不间断高频开关电源，设计了一种简易可靠的110V/2 2 0V自动切换电路，以满足宽范围电压输入要求。
A novel high frequency switch power supply, which is suitable for power network outside, is introduced in this paper, and a automation switching circuit for 110V/220V input voltage has been designed.
介绍了手选和自动顺序切换均可任意扩展的视音频切换电路。
A extendible Video-Audio Switcher circuit by hand-selecting or automatic sequential switching was intro duced.
本文详细介绍了一种具有防止乒乓效应的智能化呼吸机供气自动切换装置的性能特点、硬件电路工作原理及具体实施方法。
Describes the features, working principle and detailed methods of an anti-ping pong effect, intelligent and automatic switching device for compress air in respirators.
介绍了一种用eprom可编程器件实现新闻直播自动切换控制的方法，并给出了具体的设计和实现电路。
This paper describes a method to realize automatic switching and control in direct news broadcasting by means of EPROM. The design and circuit implementation is also given.
本文介绍了FTK-3型驼峰自动控制系统双机切换电路的原理、电路设计、硬件结构、软件流程和特点。
Principle, circuit design, hardware structure, software flow and features of dual computer switching circuit of FTK-3 hump automatic control system are introduced in this paper.
前置放大电路设计了量程自动切换的电阻反馈式两级放大。
A range automatic transfer is designed for the preamplification system with resistance feedback.
前置放大电路设计了量程自动切换的电阻反馈式两级放大。
A range automatic transfer is designed for the preamplification system with resistance feedback.
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