二相步进电机驱动芯片。64细分,最大电流10A。外界功放mos。性能良好。
上传时间: 2014-12-21
上传用户:cazjing
We (the Klimas family) are relative Linux newbies (with Linux since Summer 1998). We run RedHat mostly -> the solutions might not be directly applicable to other Linux distributions (although most of them probably will). Hope this helps, we try to be as practical as possible. Of course, we provide no warranty whatsoever!
标签: Linux relative newbies Klimas
上传时间: 2017-09-06
上传用户:gdgzhym
MSP-TEST44X 学习板光盘资料及实验说明 本学习板是按照教育大纲,采纳国内外许多单片机实验仪的优点,保持了传统机的实验 项目,增加了以实用技术为主的许多实验。实验内容涉及到端口,时钟,FLASH 读写,看 门狗,硬件乘法器,TIMER_A_操作,TIMER_A ,ADC&bt&lcd,通讯操作(232,485, SPI),键盘操作(独立按键,行列按键),LED 显示,LCD 点阵操作,扩展 DATA FLASH 操作, EEPROM 共 14 个例程,采用 C 和汇编两种语言形式。学习版硬件平台以 MSP430F449 为核 心,使用了 MSP430F449 内部的绝大多数资源,配合 FET 仿真调试&编程工具,可方便的 实现开发,在线调试与编程下载。为了便于大家查找学习板的资料及便捷的观看实验指导书, 特作此说明。
上传时间: 2017-09-27
上传用户:拔丝土豆
栅氧化层中BD的相关机制
标签: breakdown
上传时间: 2015-05-07
上传用户:sunrems
三相逆变基本电路,6个MOS管构成,直流变交流。
标签: 三相逆变器
上传时间: 2015-05-23
上传用户:13541402330
固体电子器件教材,对PN结、MOS、BJT进行了详细的论述,也对IC、光电子器件、高频、大功率器件进行了简单讲解
上传时间: 2015-07-20
上传用户:young20
拉扎维经典著作,陈贵灿等翻译。介绍了mos工艺短沟道效应\ 单级和差动放大频响反馈/震荡/封装工艺等
标签: 模拟cmos集成电路
上传时间: 2015-09-12
上传用户:牙膏没有泡泡
包括PCB,原理图以及程序代码。 本开关电源设计采用STC12C5A60S2单片机发生47KHZ的PWM脉冲信号,经过IR2104控制MOS,从而控制整个BUCK(降压式变换)电路。单片机内部自带的10位ADC能通过电压电流检测电流实时反馈电流和电压数值,并由此调整输出的PWM的占空比,形成电流电压闭环控制系统。按键能设置输出电流从0.2A到2A,以0.01A递增,输出最大10V,液晶能显示实时输出电流与电压。根据测试,满载的供电效率为88%。按键设置的输出电流的误差小于0.01A。
上传时间: 2016-06-15
上传用户:sjr88
本开关电源设计采用STC12C5A60S2单片机发生47KHZ的PWM脉冲信号,经过IR2104控制MOS,从而控制整个BUCK(降压式变换)电路。单片机内部自带的10位ADC能通过电压电流检测电流实时反馈电流和电压数值,并由此调整输出的PWM的占空比,形成电流电压闭环控制系统。按键能设置输出电流从0.2A到2A,以0.01A递增,输出最大10V,液晶能显示实时输出电流与电压。根据测试,满载的供电效率为88%。按键设置的输出电流的误差小于0.01A。 关键词:开关电源,BUCK,STC单片机,IR2104,恒流源
上传时间: 2017-07-07
上传用户:砚子儿*
The 4.0 kbit/s speech codec described in this paper is based on a Frequency Domain Interpolative (FDI) coding technique, which belongs to the class of prototype waveform Interpolation (PWI) coding techniques. The codec also has an integrated voice activity detector (VAD) and a noise reduction capability. The input signal is subjected to LPC analysis and the prediction residual is separated into a slowly evolving waveform (SEW) and a rapidly evolving waveform (REW) components. The SEW magnitude component is quantized using a hierarchical predictive vector quantization approach. The REW magnitude is quantized using a gain and a sub-band based shape. SEW and REW phases are derived at the decoder using a phase model, based on a transmitted measure of voice periodicity. The spectral (LSP) parameters are quantized using a combination of scalar and vector quantizers. The 4.0 kbits/s coder has an algorithmic delay of 60 ms and an estimated floating point complexity of 21.5 MIPS. The performance of this coder has been evaluated using in-house MOS tests under various conditions such as background noise. channel errors, self-tandem. and DTX mode of operation, and has been shown to be statistically equivalent to ITU-T (3.729 8 kbps codec across all conditions tested.
标签: frequency-domain interpolation performance Design kbit_s speech coder based and of
上传时间: 2018-04-08
上传用户:kilohorse