二极管

Other features include integrated Schottky diodes, accurate LED current matching and multiple output capability.

其它功能包括集成肖特基二极管、精确的 LED 电流匹配以及多输出能力。

For the requirement of high efficiency light emitting diode luminaries and the characteristics of automotive headlamp exit beam,based on non-imaging optical theory,a theory model for new type LED parabolic reflector optimal design is established to maximize the utilization of light energy of the reflection cup and to realize the asymmetric light intensity distribution of the headlamp exit beam.

针对当前发光二极管灯具的高效率要求和汽车前照灯出射光束特点，根据非成像光学理论建立了新型LED抛物反射器优化设计的理论模型，实现了反射杯光能利用率的最大化和前灯出射光束的不对称光强分布，进而依据该模型设计了新型反射式LED汽车前照灯光学系统。

In the case of Boost PFC circuit, the output voltage is greater than the input peak voltage.

在Boost PFC电路中，输出电压要高于输入电压峰值，而高压输出对IGBT的开通损耗和二极管的反向恢复损耗而言，在PWM硬开关工作状态下都会相当大，因此，一个最大的问题就是如何减小或者消除这两个损耗。

A mathematical model of the relationship between penetrability and temperature was deve-loped and all working parameters were set up.

分析了半导体吸收波长随温度的变化特性，选用红外发光二极管作为信号光源，光纤采用石英光纤，设定这类半导体吸收式光纤温度传感器的基本参数，建立了半导体材料GaAs的透过率与温度关系的数学模型。

A mathematical model of the relationship between penetrability and temperature was developed and all working parameters were set up.

分析了半导体吸收波长随温度的变化特性，选用红外发光二极管作为信号光源，光纤采用石英光纤，设定这类半导体吸收式光纤温度传感器的基本参数，建立了半导体材料GaAs的透过率与温度关系的数学模型。

These points are received by connecting two or more tiles, each containing the same character, as a diode, triode, tetrode or pentode.

这些要点收到连接两个或两个以上的瓷砖，各载有同样的性格，作为一个二极管，三极管，四极管或五极。

The project ducts research on new sealing structure of power-type white light emitting diode to achieve low thermal resistance and emitting efficiency over 80lm/W. It can promote phosphor transfer efficiency and improve sealing technique procedure, introduce automatic production and testing equipment,to increase white light LED emitting efficiency and other performance indexes and further large-scale productivity.

本项目专题研制开发功率型白光发光二极管新型封装结构，实现低热阻、发光效率达80lm/W以上的LED光源封装能力，提升自制荧光粉转换效率与制备技术，改进现有封装工艺制程，引进自动化生产及测试设备，提升白光LED发光效率及其其它各项性能指标，形成批量生产能力。

Each sensor is a short length of fiber-optic cable, with a Light-Emitting Diode at one end and a photo-transistor at the other. In addition, a Polhelmus 3SPACE

传感器是一截短的光缆，一端有一个发光二极管，另一端是一个光敏晶体管。

Amplifiers for photoconductive, photodiode and photovoltaic cells are shown in Figures 14, 15, 16 respectively.

光电放大器用于放大由光电导、光电二极管和光电池所得到的光强度信号，如图14、15、16。

Of both speed and linearity. It is obvious that the current through a photoconductive cell

光电放大器用于放大由光电导、光电二极管和光电池所得到的光强度信号，如图 14

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。