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The design of wireless LED (Light-Emitting-Diode) broadcast system for weather information based on GSM is presented.

提出并实现了一种基于 GSM 短信的 LED 信息发布屏系统的设计。

A new type high efficiency synchronous step-up DC/DC converter for hand-held device is designed in this thesis. It works in the PFM mode, and its switching frequency can up to 500 KHz. It offers a built-in synchronous rectifier that reduces size and cost by eliminating the need for an external Schottky diode and improves overall efficiency by minimizing losses.

本文设计了一种用于移动电子设备的高效同步整流的DC/DC升压芯片，该芯片采用PFM调制方式，工作频率最高可达500 KHz，内部集成功率管作为同步整流管，代替传统的肖特基二极管，导通电阻仅有0.4？

If so, the following three conditions are not caused by outside: Enter the loop by a diode bridge rectifier breakdown; high-voltage electrolytic filter capacitor C5, C6 was the breakdown; inverter power switch Ql, Q2 damage.

若是，则不外如下三种情况造成：输入回路中某个桥式整流二极管被击穿；高压滤波电解电容C5、C6被击穿。；逆变功率开关管Ql、Q2损坏。

A chip from the 8255 population of diode switching data collection to simulate day and night, by the flipflop through the 8259 chip to control the street lamp light out.

即由8255芯片A口对二极管的开关数据的采集来模拟昼夜，由触发器通过8259芯片来控制路灯的亮灭。

The gate of each fet is tied through a diode to the electronic switch control flipflop so the gate can be pulled to ground, which is -4.5V compared to the source.

门每个FET的联系，通过二极管的电子开关控制触发器这么门可以拉到地面，那就是4.5v相比源泉。

The only condition under which the preselector made no difference is when measurements are made with a high tunnel-diode gain.

1只有在用高增益的隧道二极管来测试时，用不用预选器才显得无关紧要。

The paper presents a new kind of optical bistability consisting of an Avalanche Heterojunction Phototransistor and a semiconductor laser diode, four operating modes of this AHPT-LD-BOD system are also discussed when it works in the stable state.

本文研究了一种用雪崩异质结光晶体管和半导体激光器组成的新型光学双稳器件，讨论了在稳态工作时该双稳器件的四种工作模式。

Mouse" standard name should be "mouse", Its English name "Mouse", name:"rubber ball round transmission of the grating with light-emitting diode and phototransistor of wafer pulse signal converter" or "spot of infrared radiation scattering particles with light-emitting semiconductor and photoelectric sensors, sensor signal of the light pulse.

鼠标&的标准称呼应该是&鼠标器&，英文名&Mouse&，全称：&橡胶球传动之光栅轮带发光二极管及光敏三极管之晶元脉冲信号转换器&或&红外线散射之光斑照射粒子带发光半导体及光电感应器之光源脉冲信号传感器。

The TOSHIBA PM7346-BI consists of a silicone phototransistor optically coupled to a gallium arsenide infrared emitting diode in a four lead plastic DIP (DIP4) with having high isolation voltage AC: 5kVRMS

1第1页，本页显示记录1-14，共14条记录分1页显示东芝PM7346 - BI的由一个硅光光学耦合到一个砷化镓红外发光晶体管在4铅塑料DIP（DIP4）与具有高隔离电压（交流二极管：5kVRMS）。

A high power, narrow linewidth single frequency laser diode as one of the key elements of Integrated Optical Rotation Sensor is studied.

对谐振式集成光学角速率传感器的关键器件之一——大功率、窄线宽光源进行了分析与实验。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。