to frequent power interruptions resulting in frequent load shedding our spectrum analyzer E7405A software
2019-05-09 16:27
, for any help shedding light on this issue Pete ThomasSenior Test EngineerMR Test Engineering• Phone
2019-06-06 07:33
功能电子化一般是通过增加高压(约350 V)电池和高性能电机直接耦合到ICE动力系统来实现的。这些‘全’混合动力汽车(HEV)一直是燃油能效车辆的定义类,从提高能效的角度,是非常有吸引力的。然而,他们增加了相当大的成本和重量。
2019-07-31 07:20
您好,我想设计一个电路,它应该帮助用户通过测量电池的一些参数,主要是电压和电流,来确定电池的容量,这样它就可以确定放电时间,然后用LCD提供关于电池寿命的信息。假设需要按时间测量放电电流,然后根据放电时间计算安培小时,并在LCD上显示。你能建议一下如何读取电池负载的电流,以及如何确定经过的时间,以便安培小时为de吗?终止?请帮我想一想,用PIC16F877A来找到好的解决方案和设计,它和液晶显示接口相连。我能够测量电池电压,但我没有达到测量电流和放电时间的程度,这对计算电池安培小时有帮助。请处理这个问题 以上来自于百度翻译 以下为原文 Hello,I would like to design a circuit which should help the user to determine the capacity of a battery by measuring some of its parameters mainly the voltage an current so it could determine the discharge time and then provide information using an LCD about battery life.Some link here on the net say that there is a need of measuring the discharge current in terms of time and then calculate the Amp-hours basing on discharging time and display on the LCD.Could you please suggest the way of reading the current with battery load and how the time elapsed is determined so that the amp-hour is determined?Please help me to think and find good solution and design using PIC16F877A which is interfaced to an LCD fr displaying purpose.I am able to measure the battery voltage but I am not coming to the point of measuring the current and discharge time which helps in calculating the battery amp-hours.help please to deal with this
2019-07-26 11:56
许多工业系统,如测试测量设备,都需要嵌入式DC-DC转换器,是因为这些应用所需的计算能力日益增加。这种计算能力由DSP 、FPGA 、数字ASIC 和微控制器 提供,而得益于工艺几何尺寸的日益缩小,该类器件在不断的进步。另一方面,这也带来了三大要求:第一,电源电压越来越低 (当然,还有容许的电压纹波和负载变化);其次,电源电流逐渐变大;第三,这些IC 通常需要为内核和I/O结构以准确的顺序提供单独的电压,以避免闩锁现象的发生。
2019-08-21 06:02
本文主要探讨了DC-DC应用中转换器功率级选择的影响。
2019-08-16 07:20