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led drive
相关语句
  led驱动
     Design of LED drive module with RS485interface
     基于RS485接口的LED驱动模块设计
短句来源
     The clock circuity,interruption,LCD & LED drive,A / D conversion and lower power consumption mode of power meter based on LK 24 are detailed.
     详细介绍了基于LK24芯片的电能表的时钟电路、中断、LCD&LED驱动与A/D转换、低功耗模式等;
短句来源
     Optical feature points network is constructed, through the regulation of several infrared LED drive module.
     通过调控多个红外LED驱动模块,构建了光学特征点网;
短句来源
  “led drive”译为未确定词的双语例句
     MAX7221 Cascade LED Drive and Its Application
     级联驱动LED的MAX7221及其应用
短句来源
     ICM7218 is a multifunction LED drive circuit,which can be connected with several SCMs.
     ICM7218是一种多功能LED数码管驱动芯片,可与多种单片机接口使用。
短句来源
     Display circuit adopts 8 bits LED drive PS7219 with high-speed serial interface to realize display.
     显示电路应用的是带有高速串行接口的8位LED驱动器PS7219,有效地实现控制器的显示。
短句来源
     Paper gives main characteristic of White LED Drive Circuit. For example constant work frequence, 3-bit current control mode, MSOP10-Pin package.
     提出电路的主要特性,如恒定的工作频率,3-bit电流控制模式,MSOP10-PIN封装形式。
短句来源
     Then,they are processed and sent to LED drive circuit for display.
     对于如何分区驱动LED显示,以及LED灰度的实现等,由于技术比较成熟,不作为介绍的重点。
短句来源
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  相似匹配句对
     Drive and Use in Automobile of LED
     LED驱动电路及在车用光源设计中的应用
短句来源
     The Classes and Application of LED-Drive ICs
     LED显示屏驱动芯片的种类及应用
短句来源
     LED Operation
     LED应用
短句来源
     Progress in Visible LED
     可见光LED的进展——发展趋势及蓝色LED(一)
短句来源
     Development of Gear Drive
     论齿轮传动的发展
短句来源
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  led drive
The remaining circuit reacts in a similar manner to match the modulation current for the LED drive current.
      
The second IF filter and the audio demodulator, as well as the squelch and RF output LED drive are provided by one monolithic integrated circuit.
      
Most of the LED drive current flows through resistor R28 to ground.
      
Extensive efforts to overcome noise from scattered light with an AC LED-drive and lock-in-amplifier detection scheme were not successful.
      
Also, since a high degree of sensitivity is required to detect small changes in strain, the LED drive should be very stable.
      


The dependence of the amplitude noise squeezing of output light of a LED driven by high--impedance constant-- current source on the electronic, optical quantum efficiencies, effect of leaking current, pump noise level and noise frequency was studied.It was shown that amplitude noise squeezing of each longitudinal model was generated andnegative quantum correlations between models existed only with high--impedance constantcurrent operation, these correlations resulted in deepening of amplitude noise squeezing...

The dependence of the amplitude noise squeezing of output light of a LED driven by high--impedance constant-- current source on the electronic, optical quantum efficiencies, effect of leaking current, pump noise level and noise frequency was studied.It was shown that amplitude noise squeezing of each longitudinal model was generated andnegative quantum correlations between models existed only with high--impedance constantcurrent operation, these correlations resulted in deepening of amplitude noise squeezing ofthe total output light from LED.

本文研究高阻恒流源驱动的光发射二极管(LED)的输出光场的振幅噪声压缩与电、光量子效率、漏电流效应、泵浦残余噪声及噪声频率的关系.指出高阻恒流技术不仅使任意纵模产生振幅噪声压缩,而且由于仅在高阻恒流下各纵模间存在负量子相关,使得LED总输出光场的振幅噪声压缩加深.

In this paper,we study the relations between the number-noise squeezing of the output light of a LED driven by high-impedance constant-current source and LED’selectronic/ optical quantum efficiencies,leakage current effect,negative feedback ofphoton-flux fluctuation and noise frequency.We poiat out that with appropriatenegative-feedback of the photon-flux fluctuation,LED driven by higk一impedanceconstant-current can generate number-squeezed state light,the number-noise squee-zing is significantly...

In this paper,we study the relations between the number-noise squeezing of the output light of a LED driven by high-impedance constant-current source and LED’selectronic/ optical quantum efficiencies,leakage current effect,negative feedback ofphoton-flux fluctuation and noise frequency.We poiat out that with appropriatenegative-feedback of the photon-flux fluctuation,LED driven by higk一impedanceconstant-current can generate number-squeezed state light,the number-noise squee-zing is significantly enhanced and its ideal value is limited only by residual noiseof the high impedance constant-current source,LED’s leakage current effect andquantum efficiency.

研究高阻恒流源驱动的LED所发射光场的粒子数噪声压缩与LED电、光量子效率,漏电流效应,光子流涨落负反馈及噪声频率的关系。指出:在高阻恒流LED中引入适量光子流涨落负反馈能产生粒子数压缩态光场并极大地提高粒子数噪声压缩,其理想压缩仅受限于高阻恒流源残余噪声、LED漏电流效应和量子效率。

An optically powered sensor for measuring pressure which is linked by optical fiber is developed in new scheme. Its pulse position modulation (PPM) optical signal and optical supply power for electronics in probe are transmitted via a single optical fiber. The optical power is carried by a 1 300 nm laser diode (LD) and the sensing data are carried by a 850 nm LED. The remote probe uses all CMOS chips and particular modulations (PPM and PWM). Its electrical consumption including signal manipulation and...

An optically powered sensor for measuring pressure which is linked by optical fiber is developed in new scheme. Its pulse position modulation (PPM) optical signal and optical supply power for electronics in probe are transmitted via a single optical fiber. The optical power is carried by a 1 300 nm laser diode (LD) and the sensing data are carried by a 850 nm LED. The remote probe uses all CMOS chips and particular modulations (PPM and PWM). Its electrical consumption including signal manipulation and LED driven current from optically converted is less than 100 μW. The laser diode supplies 5 mW optical power into the fiber. A photodetector converts sufficiently this power into electrical power to drive the whole probe operation. The optically powered distance gets up to 500 m. The novel sensor combines optical fiber and electronics technology into a system. Because of using the principle of ratio measurement between measured and reference signals, as well as light feedback,the system is available with high reliable, outstanding accuracy and repeatability.

OpticallyPoweredPressureSensorwithOpticalFiberLink¥LIUZhiyan;WANGYutian(YanshanUniversity.Qinhuangdao066004.CHN)Abstract:Anop...

 
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