The second reason is that it is difficult to make these circuit voltage controllable over a large frequency range.
第二个理由是很难做到将这些电路的电压控制在一个很大的频率范围内。
And it has the features of wide range regulation of voltage, simple circuit, output stability, reliability, excellent interactive interface, being widely used and so on.
具有电压调节范围宽，电路简单，输出稳定，可靠性强，人机交互接口优良，应用范围广泛等特点。
The article presents L6598 inner structure, its lead functions, unit circuit operation philosophy and its circuit in the wide range AC/DC adapter.
文中介绍了L6598内部结构、引脚功能、单元电路工作原理及其在宽范围AC/DC适配器中的应用电路。
In a certain range, if the lifting material beyond its corresponding weight, the circuit will be cut, so that lifting can not be carried out to ensure the stability of the crane.
在某一定幅度，如果吊物超出了其相应的重量，电路就被切断，使提升不能进行，保证了起重机的稳定。
In a certain range, if the lifting material beyond its corresponding weight, the circuit is cut off, so that the lift can not be carried out to ensure the stability of the crane.
在某一定幅度，如果吊物超出了其相应的重量，电路就被切断，使提升不能进行，保证了起重机的稳定。
A circuit that decreases the difference between the strongest and the weakest signals in a particular range.
减小某特定范围内强弱信号之间差别的一种电路。
This circuit has the characteristics of low power, wide gain adjustable range and wide bandwidth.
该电路具有低功耗、增益可调范围宽和频率范围宽的特点，适用于一般的中频接收机。
Function signal generator and equipment in the experimental detection circuit with a very wide range of USES.
函数信号发生器在电路实验和设备检测中具有十分广泛的用途。
The DC equation and source drain capacitance formula of the models are given and the application range of three circuit simulation programs is analysed.
在给出多种模型DC方程和源漏电容公式的同时，对三种电路模拟程序的应用范围进行了分析。
The circuit and method for obtaining equal measuring accuracy and response speed in a wider frequency signal range are discussed in this paper.
本文探求在较大的被测频率信号范围内获得相同的测量精度与响应速度的测量方法及电路。
Because the capacitor voltage always changes in the course of charging, and the equivalent load also changes in a large range, the load characters of charging circuit are required strictly.
由于电容在充电过程中，其电压不断改变，其等效负载也在较大的范围内变化，因而对充电电路的负载特性提出了较高要求。
The protect range is relational to short circuit type and phase when phase differential current connection mode is adopted.
当采用两相电流差接线方式时，保护范围与短路类型和短路相别有关。
The former determines the frequency range which should be revised by the hot tracking circuit, while the later is the final frequency error of the local oscillator.
同时也提出了热跟踪后本振频率跟踪误差项。分析前者，可以决定热跟踪电路应予修正的频率范围，而后者则是跟踪本振最终的误差。
For overcoming the shortcoming of narrow output dynamic range of the electronic-amplifying seismograph, the Authors have designed a kind of circuit for automatic gain control.
鉴于测震中电子放大地震仪放大器的输出动态范围窄的缺陷，笔者作了自动换档衰减放大倍数的电路技术设计。
It is confirmed by the experiments that this revised circuit has an accurate trigger point, wider range, higher preciseness of time-phase and better stability.
经实验证实，该电路触发点准确，具有更高的时相精度、宽的触发范围和很好的稳定性。
Five typical circuits for the vacuum contact diverter switch used in transformer tap - changer are analyzed. The optimum circuit and application range of every circuit are presented.
对五种典型的变压器分接开关用真空触点切换开关电路进行了分析。指出了各种电路的适用范围和最佳电路。
In the circuit design, unit current source arrays and digital synchronizing cells are used to improve the matching and dynamic range of DAC.
电路设计中使用单位电流源阵列和数字同步控制单元来提高电流源的匹配性和动态范围；
A way of controlling the voice volume in a wide range with program-control amplifier, the hardware circuit and constructing method of software are given.
采用程控放大器对音量进行宽范围控制，提供了具体硬件电路并指出了软件构成方法。
The device has several advantages such as adjustable wide current range, controllable wide voltage range, circuit interface compatible with TTL, small volume and easy modulation.
该器件不仅输出电流可调范围宽、允许工作电压变化范围大、电路接口与TTL兼容，而且体积小、调节方便。
When sinusoid signal is inputted, we measured the frequency response range of this circuit.
利用正弦波作为输入信号时，测出了此驱动电路的频率响应范围。
If the package resonant modes right within the operation frequencies range of the enclosed circuit, coupling between the circuit and these resonant cavity modes may disturb circuit operation.
如果该封装波导谐振模恰好位于电路工作频率范围之内，电路与封装谐振模间的耦合将干扰电路的工作。
This paper introduces property and feature of PIC16C711, analyses theory of measure distance by ultrasonic wave, gives hardware circuit and software design of range finder for back a car.
介绍了PIC 16C711的性能和特点，分析了利用超声波测距的原理，给出了应用pic 16 C 711设计汽车倒车测距器的硬件电路和软件设计。
This paper mainly gives the descinption of the relation and its application range between Kirchoff's Law and Circuit Dimension in analysing circuit.
本文主要简述电路分析中基尔霍夫定律与电路尺寸之间的关系及应用范围。
Aimed at the characteristics of ut, a receive and adjust circuit is designed, which have character of low noise, wideband, wide dynamic range of input.
针对超声探伤的特点，设计了低噪声、宽频带、动态范围大的接收调理电路。
This paper introduces a design of machine in small range tension test which is applied to a field of micro-electronics integrate circuit, by analyzing tasting method and sensor theory.
通过对张力测试的分析及传感器的原理分析，介绍一种应用于测试微电子集成电路丝线张力的小量程张力测试机构的设计。
The principle of circuit and range switch method are introduced.
阐述了电路原理和量程切换的方法。
A kind of circuit for automatic range selection of voltmeters is introduced and designed.
提出并设计了一种适用于电压表的量程自动转换电路。
Its technologies range from circuit protection and energy management systems to process control, industrial software and totally integrated automation solutions.
其技术含盖从电路保护和能源管理系统到过程控制、工业软件和完整集成自动化解决方案等。
Its technologies range from circuit protection and energy management systems to process control, industrial software and totally integrated automation solutions.
其技术含盖从电路保护和能源管理系统到过程控制、工业软件和完整集成自动化解决方案等。
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