我们的设备使用内部电池作为备用电源,使用LTC4091作为充放电管理芯片。备用设备放置时间长后电池会有过放的现象,有些设备通过多次trickle charge能够正常恢复到充满,也有一部分存在
2024-01-24 07:46
在使用3.3V供电时,电池端二极管正极有3v电压,负极为什么有4V多的电压,请大家赐教。
2018-07-17 09:44
with Trickle ChargeMP2602DQ-LF-ZMPS(美国芯源)QFN10电池电源管理28V, 1A Linear Li-Ion Battery Charger with Trickle
2015-08-26 12:16
嗨,我用100mR电阻和0.1uF电容在DS21823D、MCP73843数据表的第1页上建立了示例电路。我可以从3.6V-4.2V充电3000毫安电池,不会发生错误。然而,如果我从1.2V-4.2V给这个电池充电,充电电路超时并显示出闪烁故障。我试着将电阻降低到50mR以便更快地给电池充电,但是充电单元立即显示出闪烁故障。在数据表中,建议只使用0.1uF电容器?除了改变充电电阻,我看不出还有什么需要充电更大容量的电池。请你指出我要从1页上显示的示例电路中更换一个3000毫安的电池。谢谢。
2019-10-21 14:06
(Trickle_Charger_Address,CHG_Value);DS1302_WP_Enable();//打开写保护
2020-08-11 04:17
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