查询词典 junction transistor

Main technical specification and inspection condition: Main sound track output≥10W, Input resistance≥47KΩ, Frequency20Hz～20KHz, Load resistance8Ω, Total wave distortion≤1%, Ultra bass channel output≥20W, Frequency≤100Hz,uses the transistor and giving up field effect tube and electron tube and reduction transistor and so on carries on the discussion.

其主要技术指标及考核条件为：主声道的输出功率≥10W，输入电阻≥47KΩ，频率响应20Hz～20KHz，负载电阻8Ω，总波失真≤1%，超低音通道输出功率≥20W，频率响应≤100Hz，，同时采用全晶体管的设计。

Therefore, if we have a way of holding emitter current constant through a transistor, the transistor will work to regulate collector current at a constant value.

于是，只要我们能让晶体管的发射极电流保持恒定，它就能保持发射极电流为恒定值。

For weak nonlinear distortion, the expressions of total harmonic distortion, the second order intermodulation distortion(IM2 ), the third order intermodulation distortion(IM 3) and intercept point(IP 3) are deduced. With the aid of software Multisim, we simulate transistor common emitter amplifier, transistor common emitter amplifier with resistor in emitter, differential amplifier and differential amplifier with resistor between emitters. The simulational results and theoretical analyses are almost the same.

针对弱非线性失真，推导了总谐波人、二阶互调失真( IM2 )、三阶互调失真( IM3)和截点( IP3)的表达式，借助于 Multisim软件，对晶体管共发放大器、发射极带反馈电阻的失发放大器、差分放大器和发射极间带反馈电阻的差分放大器进行了仿真，并与理论结果作了比较，结果令人满意。

In Two-Transistor Flyback Converter circuit, a power semiconductor device in Flyback Converting circuit has been replaced by two power semiconductor devices which parallel connected with an ultra-fast diode with soft recovery characteristics. Two-Transistor Flyback Converter can reduce greatly the switching stress of the power switch and does not need to degausser, suitable for high input voltage Switching Power Supply.

反激变换是从Buck-Boost变换演变而来的，将反激变换电路中的单个功率开关管用两个替代，并在每个功率开关管上并联一十箝啦的快恢复二极管而形成的双晶体管反激变换电路，能大大降低功率开关管承受的开关应力，且不需要消磁电路，非常适用于高输入电压的开关电源。

Each transistor is independently mounted and easily config- ured for either dual transistor or cascode operation.

每个晶体管是独立安装，容易配置，在双晶体管或级联操作被保险。

Figure 1-14 shows an NPN transistor and a PNP transistor in the feedback path to provide dual polarity operation.

图1-14示出反馈通路采用一个NPN晶体管和一个PNP晶体管来实现双极性工作。

If you are unfamiliar with higher voltage circuit construction, I would recommend making a radio with a transistor or field effect transistor.

如果你不熟悉高乙电下的制作，我建议你制作晶体管或者场效应管的收音机。

The compensation circuit includes a compensation transistor of the same type as the field effect transistor.

所述补偿电路包括一个与场效应晶体管相同型号的补偿晶体管。

The fabrication and analysis of poly-Si thin film transistor and Si nanowires field effect transistor were studied in this thesis.

本论文是有关低温多晶矽薄膜电晶体与矽奈米线场效电晶体之制备与分析。

In order to grasp the characteristic of the field effect transistor, new idea was brought forward for expressing the field effect transistor with digital formula in teaching course.

为学习掌握场效应管的特性，在教学中提出了数字公式表示场效应管规律的新方法。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。