查询词典 astable

Their flash frequency is fixed so their use is limited and you may prefer to build your own circuit to flash an ordinary LED, for example our Flashing LED project which uses a 555 astable circuit.

他们的闪光频率是固定的，使它们的使用是有限的，你可能更愿意建立自己的电路，以一个普通的LED闪光灯，例如我们闪光的LED 项目，该项目使用了555稳态电路。

The timers can be used in various combinations of astable or monostable circuit connections, with or without modulation, for extremely flexible waveform control.

定时器可用于各种非稳和单稳电路的组合中，无论调节与否，都可实现高度灵活的波形控制。

The conventional oscillator is often denoted as an astable multivibrator and has a duty cycle of approximately 50%.

传统振荡器通常表示为一个无稳态多谐并拥有约50％的工作周期。

By studying the internal structure and working principle of 555 timer, this paper introduces three typical circuits----Schmitt trigger, Bistable multivibrator and Astable multivibrator----which are composed by 555 timer. Furthermore, it explores the various applications of 555 timer in circuit designing through the expansion of the circuits and eventually same experience and methods offers in circuit designing by using 555 timer.

本文通过研究555定时器的内部结构和工作原理，介绍了其组成的施密特触发器，单稳态触发器和多谐振荡器等三个典型电路，并通过这些电路的扩展，探讨了555定时器在电路设计中的各种应用，由此得出用555定时器设计电路的经验和方法。

This paper analyzed and researched the characteristics of Schmitt trigger, single-stable-state trigger and astable multivibrator constituted by 555 timer based on PSPICE. Against the phenomenon of astable multivibrator constituted by 555 timer has no oscillation in PSPICE, an effective analysis method was brought out for 555 timer circuit to simulate the actual oscillator.

作者在文中应用PSPICE对555定时器构成的施密特触发器、单稳态触发器和多谐振荡器的工作特性进行了仿真分析和研究，针对PSPICE中555定时器构成的多谐振荡器不起振的问题提出了模拟振荡电路的有效起振方法，对电子电路的分析与设计具有一定的参考意义。

Timer is a kind of multipurpose numeral- imitate the hybrid integrated circuit, in addition to constituting single multivibrator, astable multivibrator, Schmitt trigger , can also connect many useful electric circuit, all got the application in the creation and varieties of a wave form, measure and control, home appliances, the electronics toy wait many realms.

555定时器是一种多用途的数字-模拟混合集成电路，除了可以组成单谐振荡器、多谐振荡器、施密特触发器以外，还可以接成许多种有用电路，在波形的产生与变化、测量与控制、家用电器、电子玩具等许多领域中都得到了应用。

A man is not ahorse because he was born in astable.

人并不因为生在马厩里就成了马。

We didn't be told the date of the experiment beforehand.The mass unemployment will lead to the astable of society.

如果我告诉他我身在何处，他肯定会竭尽全力的帮助我，但是对我来说，却是增添许多麻烦。

At present,the classical risk model has been deeply researched and some important results have been educed,as have established astable foundation for the further development of the risk theory.

如今，对经典模型已有了很深入的研究，得出了很多重要的结果，为破产理论的发展奠定了坚实的基础。

As an important part of China's national economy,the Small and Medium-sized Enterprisesplay asignificant role in promoting economic development,increasing employment and maintaining astable society.

中小企业是我国国民经济中的重要组成部分，在推动经济发展、解决劳动力就业和保持社会稳定方面发挥重要作用。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。