驱动电路

Owing to its small volume, light weight, high efficiency, succinct circuitry, high reliability and great capability of self-equalizing output loads in different circuitries, the Fly-back Converter becomes the optimally topological form of designing auxiliary power supply of high frequency switching power and driving power supply of power switching.

由于反激式变换器不但具有体积小、重量轻、效率高、线路简洁、可靠性高等优点，而且还具有较强的自动均衡各路输出负载的能力，目前反激式变换器的电路拓扑形式已成为人们设计高频开关电源的辅助电源以及设计各种功率开关驱动电源的首选。

Using digital signal processor, TMS320F240, which is special for motor control, we develop a suit of speed adjustable, reliable and highly effective induction drive based on FOC principle.

文中对整个系统的硬件电路和驱动软件的实现都作了详细的介绍，同时采用了一种新型的PWM调制方法一电压空间矢量法来实现对异步电机的控制，提高了能量的利用效率。

The design for drive circuits and signal post-processing of 128×128 infrared focal plane array.

128×128红外焦平面阵列驱动和信号后处理电路的设计。

Development and experimental study of the key parts of foreside control ultra high speed injection moldingThe designing theories and methods of microdisplacement actuator for controllable nozzle based on GMM are proposed. The designing process of such components as microdisplacement transfer and amplifier mechanism, driving coil and control circuitry is presented particularly.

前端控制式超高速注射成型关键部件的研制及相关实验研究提出了可控喷嘴用超磁致伸缩微位移驱动器的设计理论和方法，通过理论分析计算优化了驱动线圈和控制电路的设计。

The objective of the thesis is to present newly developed AC driver and protection circuits for light emitting diode. The LED modules for each upper and low arm are with pulse-width modulation control in every half fundamental cycle. The indication and protection circuits act whenever short circuit and open circuit of LED module occur. Moreover, the current path is switched off when there is a short circuit of LED module.

目前一般白光发光二极体的驱动器，皆是使用直流电源驱动，本文利用发光二极体本身单向导通的特性，将发光二极体串接成桥式整流器的方式，只需控制流经中间路径的电流周期，就可达到调整发光二极体亮度之目的，并且增加发光二极体故障时的保护指示电路。

This is a very big challenge, because gearshift solution needs the drive of more complex nicety and control circuit.

这是个很大的挑战，因为变速解决方案需要更简单慎密的驱动和节制电路。

A novel high voltage reference circuit with startup hysteresis and high current driving ability is presented in this paper.

设计了一种具有大电流驱动能力的新型带启动迟滞的高压基准电路。

A kind of piezoelectric motor with nano-step,based on the principle of inchworm motion,is introduced in this paper,then a newly developed driving power is presented in detail.

介绍了一种基于尺蠖运动原理的纳米级步距压电电动机，提出了一种新型的压电陶瓷驱动电源，并给出了详细的电路原理图。

The customer can lower the drive current through the crystal by .increasing the capacitor value on the oscillator output while decreasing the value on the oscillator input, increasing the value of a series resistor, or decreasing the gain.

客户端可把振荡电路放大器输出端的负载电容增大，同时降低输入端的负载电容(串联后等效电容须与改变前相同)，增大与晶体串联的电阻阻值，或降低放大器的增益，来降低驱动晶体的电流。

The driver stage function obtains enough high voltage amplification factor, as well as the output stage provides enough big drive current, for this reason, may use the belt collection electricity level altogether to shoot the amplifying circuit, its static bias current ratio input level must be big.

推动级的作用是获得足够高的电压放大倍数，以及输出级提供足够大的驱动电流，为此，可采用带集电级的共射放大电路，其静态偏置电流比输入级要大。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。