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说明：  This article introduces two new configurations for precision current sources and current mirrors. Both circuits use n-p-n bipolar devices, but one provides a current source while the other provides a current sink. This permits the use of current sources in IC designs implemented with processes that do not allow p-n-p devices. Analog building blocks such as voltage-to-current converters, active loads, and sink and source current mirrors can be constructed from the new circuits using only n-p-n devices. Furthermore, because these circuits achieve the required precision without the use of high-gain amplifiers, the bandwidths of the circuits are large compared to conventional configurations. The source currents are dependent on a single reference voltage and exhibit good temperature sensivitity

设计了模糊PID参数控制，很好的控制变化的温度，精度较高，效果好(based on FUZZY PID control)

Flash连连看游戏，Flash源码、源文件下载。学习编写Flash游戏制作的可参考这个flash源码，连连看在以前也是风靡一时的火爆游戏，用Flash做出连连看，其效果与原版游戏没什么区别。

whu cpu final exam referance

3DExperience Enovia project planner

2018年电工杯A题思路解答，其余部分还在研究(The idea of A in the 2018 electrician cup)

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2.4寸彩屏程序包含触摸,SD卡的源码和资料(2,。4TFT SDcard)

完整的vb销售系统源代码，包含了crystalreport的生成，密码peng-complete vb marketing system source code, contains crystalreport generation, Password peng