不错
上传时间： 2013-10-31
上传用户：我们的船长
简要介绍下
上传时间： 2013-10-31
上传用户：范缜东苑
4414电源切换
上传时间： 2014-01-21
上传用户：moerwang
刘胜利现代高频开关电源实用技术
上传时间： 2013-10-31
上传用户：wxqman
Abstract: A resistive feedback network is often used to set the output voltage of a power supply. A mechanical potentiometer (pot)conveniently solves the problem of adjusting a power supply. For easier automatic calibration, a mechanical pot can be replaced witha digital pot. This application note presents a calibration solution that uses a digital pot, because digipots are smaller, do not movewith age or vibration, and can be recalibrated remotely. This proposed solution reduces the susceptibility of the system to thetolerance of the digital pot's end-to-end resistance, making the solution optimal fordesigners. This application note also explainssome of the equations required to calculate the resistor chain values and to use a digital pot in this way. A spreadsheet withstandard reisistor values is available for easy calculations.
上传时间： 2013-10-31
上传用户：caiguoqing
如何选用合适的空气开关
上传时间： 2013-10-31
上传用户：guanliya
DC-DC 模块的电源纹波指标是一项很重要的参数。干净的电源是数字电路稳定工作的前提，也是模拟器件的各项参数的重要保障。
上传时间： 2013-10-31
上传用户：stvnash
gfdg
标签： 发射
上传时间： 2013-10-31
上传用户：wl9454
High voltage buck DC/DC controllers such as the LTC3890(dual output) and LTC3891 (single output) are popular inautomotive applications due to their extremely wide 4V to60V input voltage range, eliminating the need for a snubberand voltage suppression circuitry. These controllersare also well suited for 48V telecom applications whereno galvanic isolation is required.
上传时间： 2013-10-31
上传用户：wwwe
本文档所描述的方案基于Piccolo DSC，以TMS320F28027作为控制核心，采用电流反馈并结合相应的控制算法实现恒流输出控制，使用于驱动LED路灯、LED背光、LED隧道灯、装饰照明等应用领域。
上传时间： 2014-04-28
上传用户：robter
