搜索：needed - 虫虫下载站

电源技术  利用纤巧型负载点电路来简化电源电压的跟踪和排序

&nbsp; Multiple-voltage electronics systems often requirecomplex supply voltage tracking or sequencing, whichif not met, can result in system faults or even permanentfailures in the fi eld. The design diffi culties in meetingthese requirements are often compounded in distributedpowerarchitecture ...

https://www.eeworm.com/dl/505/24296.html

下载: 25

查看: 1088

电源技术  手持式高功率电池充电器

&nbsp; As the performance of many handheld devices approachesthat of laptop computers, design complexity also increases.Chief among them is thermal management&mdash;how doyou meet increasing performance demands while keepinga compact and small product cool in the user&rsquo;s hand?For instance, ...

https://www.eeworm.com/dl/505/24314.html

下载: 87

查看: 1028

电源技术  按键开关控制器简化系统设计

&nbsp; Handheld designers often grapple with ways to de-bounceand control the on/off pushbutton of portable devices.Traditional de-bounce designs use discrete logic, fl ipflops, resistors and capacitors. Other designs includean onboard microprocessor and discrete comparatorswhich continuously co ...

https://www.eeworm.com/dl/505/24326.html

下载: 109

查看: 1036

电源技术  DN458降压转换器简化低电压设计

&nbsp; Many system designers need an easy way to producea negative 3.3V power supply. In systems that alreadyhave a transformer, one option is to swap out the existingtransformer with one that has an additional secondarywinding. The problem with this solution is that manysystems now use transfor ...

https://www.eeworm.com/dl/505/24335.html

下载: 152

查看: 1040

电源技术  笔记本电脑的功率调节系统

&nbsp; Notebook and palmtop systems need a multiplicity ofregulated voltages developed from a single battery. Smallsize, light weight, and high efficiency are mandatory forcompetitive solutions in this area. Small increases inefficiency extend battery life, making the final productmuch more usab ...

https://www.eeworm.com/dl/505/24389.html

下载: 131

查看: 1027

电源技术  LTC1325电池管理IC的使用

&nbsp; For a variety of reasons, it is desirable to charge batteriesas rapidly as possible. At the same time, overchargingmust be limited to prolong battery life. Such limitation ofovercharging depends on factors such as the choice ofcharge termination technique and the use of multi-rate/multi-s ...

https://www.eeworm.com/dl/505/24404.html

下载: 173

查看: 1049

电源技术  Wide-input dc/dc modules offer

When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceattributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typ ...

https://www.eeworm.com/dl/505/24438.html

下载: 186

查看: 1059

单片机编程  基于HITAG读写芯片HTRC110的读写设备设计

Designing read/write device (RWD) units for industrial RF-Identification applications is strongly facilitated by the NXP Semiconductors HITAG Reader Chip HTRC110. All needed function blocks, like the antenna driver, modulator demodulator and antenna diagnosis unit, are integrated in the HTRC11 ...

https://www.eeworm.com/dl/502/29066.html

下载: 108

查看: 1061

单片机编程  基于ARM单片机的自动测高测距小车

生活中许多目标的高度和水平距离需要进行测量。目前主要的测量方法，仍以传统的皮尺丈量为主，测量效率不高，有时还很不方便，没有技术成熟的数字式测高测距产品。以基本的数学方法为理论依据，利用遥控小车做为载体，采用角度传感器测量角度、霍尔传感器测量水平距离等，通过单片机LM3S615进行数据计算，实现了对待测目标 ...

https://www.eeworm.com/dl/502/29167.html

下载: 181

查看: 1044

单片机编程  基于ATmega48的3相无刷电机的控制方法

介绍了采用ATmega48单片机实现三相无刷直流电机控制器的方法。利用Atmega48获得带死区的脉宽调制（PWM）、霍尔传感器的换相处理、正弦驱动信号的产生和电机转速的控制等功能。采用该方法的优点是所需的外围器件少，成本低。 Abstract: &nbsp;The method of 3-phase brushless DC motor control based on ATmega48 is pre ...

https://www.eeworm.com/dl/502/29241.html

下载: 174

查看: 1043

搜索结果

按分类筛选