设计与开发

单片机锂电池 杰华特带来多款户外电源锂电保护芯片,支持电池保护及监控

小编 2024-11-24 设计与开发 23 0

杰华特带来多款户外电源锂电保护芯片,支持电池保护及监控

锂电池具有电压平台高,能量密度大,寿命长的突出优势,一经诞生就被手机,笔记本电脑等随身设备广泛应用。多串锂电池组能够输出更大的功率,被人们用于移动电源及储能用途,轻便小巧,满足不同场合的应用需求。

而使用锂电池,就离不开电池组上的保护板了。保护板是由保护芯片和MOS管组成,实时的检测电池端电压和电流,在出现电池过压、欠压或者过流时,保护芯片控制MOS管,及时断开电池与电路的连接,防止电池在异常情况下出现危险。

杰华特针对多串电池应用,推出了一系列多串锂电保护芯片,分别为支持3-5串电池的JW3312保护芯片,支持3串电池的JW3313电池保护芯片,支持5-7串的JW3317电池保护芯片,具有数字接口,支持4-10串电池监控的JW3370电池保护芯片以及支持2-5串的二次侧电池保护芯片JW3410。

首先介绍的是杰华特JW3312。

JW3312是一颗支持3,4,5串锂电池的保护芯片,内部集成高精度电压检测电路,支持过充、过放、过流、过热以及电池断线保护。JW3312支持锂电池和磷酸铁锂电池,具有25mV过充电压检测精度,50mV过放检测精度,内置电池均衡功能,具有3μA待机功耗。JW3312提供TSSOP20封装,适用于可充电锂电池组,电动工具和UPS备份电池组。

JW3313是一颗支持3串锂电池的保护芯片,芯片支持电池过充、过放、过电流、电池温度以及开路检测。JW3313支持磷酸铁锂和锂电池应用,具备25mV过充检测精度和80mV过放检测精度,具备三阶段过电流保护,内置高精度电池温度检测,支持电池过热和过冷保护,具备1.5μA待机功耗。JW3313采用MSOP10封装,支持可充电锂电池组,电动工具等应用。

JW3317是一颗支持5,6,7串锂电池的保护芯片,支持级联应用,满足14串电池保护功能。芯片内置完善的电池保护功能,具备20mV电池过充检测精度和80mV电池过放保护精度,支持四档充电过电流检测的选择,支持三级过放电流延时,具备高精度电池温度检测功能,防止电池在高低温下充电,并且防止电池放电过热。

JW3317采用TSSOP-24封装,支持可充电锂电池组应用,电动自行车应用,备份电池系统应用。级联多串可满足混合动力汽车应用。

JW3370是一颗支持4-10串锂电池的保护芯片,内置14位ADC用于电池电压以及温度采集,16位ADC用于电池充放电电流采集。JW3370支持电池均衡功能,从而延长电池组的使用寿命。JW3370支持通过SPI总线与外部单片机通信,可检测串联电池组中的电池电压。

JW3370支持电池过充、过放、高低温,过电流以及单体开路保护,JW3370支持睡眠模式和运输模式降低电池组在库存及运输中的电量损耗。JW3370具备15μA睡眠电流和3μA运输电流,采用TSSOP38封装,支持电动自行车、备份电池应用以及混合动力汽车应用。

JW3410是一颗支持2到5串锂电池的二次保护芯片,内部集成高精度电压检测电路,用于锂电池过充保护。内置的高精度电压检测电路具有20mV精度,支持磷酸铁锂及锂电池过压保护,支持高压锂电池应用,具备不同的释放阈值和动作延时。

JW3410具有独立引脚用于过电压信号输出,芯片自动监测电池电压,当出现过充或者断线时,经过延时输出控制信号,可用于控制MOS管或三端保险丝,切断电路连接,保证电池安全。JW3410具有3μA功耗,采用MSOP8封装,适用于可充电锂电池组,电动工具及笔记本电脑电池电压监测。

充电头网总结

伴随着新能源技术的发展,锂电池作为优秀的能量载体,在多种应用场合中得到了非常广泛的应用。锂电池保护板作为锂电池安全应用的搭档,从传统的过充过放过流保护,演进到支持更高的精度,支持电池均衡功能,为电池提供了全面的保护功能。

杰华特针对户外电源电源以及锂电池储能应用推出的保护芯片,具有高精度过充保护功能,同时支持级联操作,可满足更高电压的应用。JW3370支持数字接口通讯,可输出电池电压信息,满足多串电池组中读取单体电压的需求,充分了解电池状态。

单片机锂电池容量测试仪设计小创意 附后实物及软件语言源代码

前几天在家看到我家的锂电吸尘器没电了,但是充满后用了一会就又没了,电量明明显示还有两格,心想这个东西太不靠谱了,于是就寻思如果能测试出电池的容量就好了,便自己动手做了一个锂电容量测试仪,然后实际测试了一下,发现准确度和精度都还可以,下面分享出来供大家学习参考一下。

说明:本次实验项目是用汇编语言开发的,如果感兴趣的小伙伴也可以试着用C语言开发一下哦!

老规矩废话不多说,先上实物图:

工作原理:此设计是用万能板搭建,显示用12864字库屏,主板与屏幕分开,这个单片机电池容量测试仪对于锂电/镍氢程序实现自动识别。该设备会自动识别电池类型(锂电池还是镍氢电池)。

识别的方法:电压高于2.7就是锂电,低于2.7高于2V就是锂电低电压,会有提示;高于1低于2,就是镍氢电池。左下角放电测试时会显示截止电压。

本设计仅供参考如果设计有不合理之处请大神勿喷,再次仅仅起到学习和抛砖引玉的效果。

本设计汇编语言参考源代码如下:

;-------------------------

; LCD12864.ASM

;

;12864液晶屏显示驱动程序

;-------------------------

SENDI:;------串行控制命令写入------------------------

; LCALL FD ;等忙时间

MOV RAM0,#15

DJNZ RAM0,$

;------------第一字节,11111000,从MCU到屏,控制字 ,rs,rw都为0

SETB RS ;片选为1

MOV R7,#5

SENDI1: SETB RW ;前四位都为1

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

DJNZ R7,SENDI1

MOV R7,#3

SENDI2: CLR RW

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

DJNZ R7,SENDI2

;-------第二三字节,8位的高四位------------------

MOV R6,#2

SENDI5: MOV R7,#4

SENDI3: RLC A

MOV RW,C

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

DJNZ R7,SENDI3

MOV R7,#4

CLR C

SENDI4: MOV RW,C ;后4位全为0

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

DJNZ R7,SENDI4

DJNZ R6,SENDI5

CLR RS

RET

;-----------------------------------------------

SENDD: ;------串行数据字节写入---------------------

; LCALL FD ;等忙时间

MOV RAM0,#15

DJNZ RAM0,$

;------------第一字节,11111000,从MCU到屏,控制字

SETB RS ;片选为1

MOV R7,#5

SENDD1: SETB RW ;前四位都为1

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

DJNZ R7,SENDD1

CLR RW ;第三位,从MCU到LCD,0

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

SETB RW ;第二位,数据,1

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

CLR RW ;第1位,,0

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

;-------第二三字节,8位的高四位------------------

MOV R6,#2

SENDD5: MOV R7,#4

SENDD3: RLC A

MOV RW,C

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

DJNZ R7,SENDD3

MOV R7,#4

CLR C

SENDD4: MOV RW,C ;后4位全为0

NOP

NOP

CLR E

NOP

NOP

NOP

NOP

SETB E

DJNZ R7,SENDD4

DJNZ R6,SENDD5

CLR RS

RET

/*从缓存取数据送显示*/

LCDDS: MOV DPTR,#TAB1F ;

LCDDS1: MOV A,@R0 ;取列表

MOVC A,@A+DPTR

LCALL SENDD

INC R0

DJNZ DSDAT,LCDDS1 ;取完N个数

RET

LCDDS2: MOV DPTR,#TAB1F

LCDDS3: MOV A,R0

MOV CA,@A+DPTR

LCALL SENDD

INC R0

DJNZ DSDAT,LCDDS3

RET

TAB10: DB " 电池容量测试 " ;

TAB11: DB "V=0.00V I=0.00A "

TAB12: DB "0:00:00 0mAh "

TAB13: DB "SV2.70V SR0.00A"

; 0 10 141618 22 30

TAB1F: DB "0123456789: -.=VRLAmD 待机....SV已结束! ",0

/*

TAB1:

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,96,0,0,96,0,0,0,0;

DB 0,0,192,0,102,0,195,128,99,0,99,96,49,128,0,0;

DB 0,0,192,0,99,0,222,0,97,128,99,252,49,128,0,0;

DB 0,0,192,0,96,0,198,192,96,240,103,96,49,128,0,0;

DB 0,0,192,0,126,0,255,128,127,176,121,240,49,240,0,0;

DB 0,0,248,7,192,3,204,3,248,1,231,48,63,176,0,0;

DB 0,31,152,0,243,0,219,128,126,192,103,240,241,224,0,0;

DB 0,1,152,0,243,0,254,0,118,96,118,48,49,252,0,0;

DB 0,1,176,1,182,1,247,240,236,0,251,224,63,128,0,0;

DB 0,3,48,1,188,15,254,1,225,193,225,188,113,128,0,0;

DB 0,3,48,195,56,96,198,199,111,3,111,225,195,192,0,0;

DB 0,6,48,198,112,96,222,192,99,0,97,192,6,96,0,0;

DB 0,12,48,204,240,97,223,193,227,240,99,96,12,56,0,0;

DB 0,56,31,152,31,224,248,192,254,0,102,48,56,30,0,0;

DB 0,0,0,0,0,0,0,0,0,0,124,28,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,48,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,48,0,3,0,0,48,1,128,24,0,0,0,0;

DB 0,0,0,96,0,115,1,158,48,97,176,27,48,0,0,0;

DB 0,0,0,96,3,195,0,246,48,49,152,49,176,0,0,0;

DB 0,0,0,254,0,3,224,103,176,1,128,49,176,0,0,0;

DB 0,0,1,134,0,127,102,127,176,1,240,108,48,0,0,0;

DB 0,0,1,134,7,195,99,127,176,239,128,118,96,0,0,0;

DB 0,0,1,246,0,195,96,127,179,225,128,243,96,0,0,0;

DB 0,0,1,134,1,182,96,255,176,99,193,177,224,0,0,0;

DB 0,0,1,134,3,118,97,255,176,110,192,48,192,0,0,0;

DB 0,0,1,246,3,252,193,156,48,102,96,49,224,0,0,0;

DB 0,0,1,134,0,24,195,54,48,119,236,51,56,0,0,0;

DB 0,0,1,254,0,51,192,102,112,124,60,62,30,0,0,0;

DB 0,0,1,206,0,97,128,192,48,0,28,48,0,0,0,0;

DB 0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 7,156,243,224,12,32,15,128,0,0,0,0,13,136,0,192;

DB 8,136,74,64,18,96,10,128,0,0,0,0,5,24,1,32;

DB 8,8,72,143,130,35,226,0,0,0,0,0,5,8,1,32;

DB 8,8,72,128,12,32,2,0,0,0,0,0,5,8,1,32;

DB 8,8,73,0,2,32,2,0,0,0,0,0,5,8,1,32;

DB 8,136,73,32,18,32,2,0,0,0,0,0,2,8,1,32;

DB 7,8,243,224,12,112,7,0,0,0,0,0,2,28,64,192;

DB 0,48,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

/* (128 X 64 )*

TAB2:

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,24,0,0,0,0,0,0,0,0,0,0,192,0,0;

DB 0,0,28,0,0,0,0,0,1,192,56,0,48,112,0,0;

DB 0,0,28,0,0,222,0,0,1,192,24,0,48,96,0,0;

DB 0,0,62,0,0,254,3,128,1,192,24,0,112,96,0,0;

DB 0,0,119,0,0,206,31,192,3,224,24,0,112,96,0,0;

DB 0,0,115,128,0,207,249,128,3,123,24,0,224,126,0,0;

DB 0,0,225,192,0,206,219,128,7,61,152,0,195,240,0,0;

DB 0,1,192,224,0,254,219,128,14,13,152,1,192,96,0,0;

DB 0,3,128,112,0,254,219,0,12,1,152,3,192,96,0,0;

DB 0,3,15,252,0,206,223,128,24,225,152,3,192,127,128,0;

DB 0,6,126,63,128,206,240,0,63,241,152,6,195,240,0,0;

DB 0,12,0,31,192,254,192,0,110,97,152,12,206,224,0,0;

DB 0,56,0,0,0,238,192,0,198,97,152,24,192,96,0,0;

DB 0,96,1,128,1,204,192,24,7,225,152,0,192,96,0,0;

DB 0,0,31,192,1,140,192,24,6,225,152,0,192,252,0,0;

DB 0,3,241,224,1,140,192,56,6,192,24,0,195,224,0,0;

DB 0,1,129,192,3,140,224,120,6,12,24,0,192,96,0,0;

DB 0,1,193,128,3,60,127,248,6,28,24,0,192,96,0,0;

DB 0,0,193,128,6,28,31,192,7,252,24,0,192,127,192,0;

DB 0,0,255,128,6,28,0,0,1,240,248,1,255,240,0,0;

DB 0,0,224,0,0,24,0,0,0,0,120,0,192,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,56,0,192,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,128,0,0,0,0,0,0,0,0,0,0,0,0;

DB 1,0,0,128,0,0,0,0,0,128,0,0,0,0,0,0;

DB 1,0,1,224,3,0,7,240,1,128,0,240,3,0,0,248;

DB 25,112,7,192,3,0,5,80,1,248,61,160,1,128,7,16;

DB 24,192,7,0,3,224,7,96,31,0,41,32,4,192,0,16;

DB 0,96,2,128,31,48,1,120,18,224,41,160,12,96,3,144;

DB 17,128,7,224,23,176,15,192,3,32,41,96,9,48,28,16;

DB 48,224,7,128,23,32,2,96,6,160,57,216,19,24,7,144;

DB 39,160,0,248,15,160,4,48,11,32,41,224,54,28,25,144;

DB 36,36,31,128,15,224,15,252,50,160,34,96,69,198,15,16;

DB 40,36,32,128,3,2,53,167,3,32,34,16,15,32,14,16;

DB 24,38,0,128,1,6,6,96,2,32,34,78,31,96,0,16;

DB 0,54,0,128,0,254,0,0,2,32,35,130,0,0,0,112;

DB 0,14,0,128,0,0,0,0,0,96,0,0,0,0,0,16;

DB 0,0,0,128,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;

DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;"

汇编语言显得有些复杂,感兴趣的小伙伴也可以用C语言试一下哦!

鉴于篇幅有限,只能写部分参考代码,如果需要完整源代码请私信我或者留言,谢谢!

如果喜欢我的文章请评论转发加关注哦。

相关问答

单片机 如何用普通 电池 供电?

充电宝几个锂电池堆成的块单片机供电5V或3.3V只要充电宝输出的电压够,完全没问题。但是,虽然是用充电宝供电说法上,实际上是DC5V供电充电宝几个锂电池...

...同时肿么测 电池 的电压和充电电流? 用的是51 单片机 。-ZOL问答

用的是51单片机。举报相机电池4人讨论721次围观关注问题写回答讨论回答(4)zr3411121、电池通过MOSFET和电流采样电阻并联的网络与单片机共地,控制MOSFE...

锂电池 电压不稳为什么?-ZOL问答

电池的电压不会忽高忽低的的,不然就不合常理了啊。有用(0)回复zcl333444你可以在C+端出来串一个电阻接三极管1脚,三极管二脚接单片机I/O口然后接入充电器时...

esp32是什么 单片机 ?

ESP32是由乐鑫发布的新一代WiFi芯片,是ESP8266的升级版,准确来说是ESP8266的完整版,双核,wifi,蓝牙,低功耗,更多管脚外设。ESP32特性ESP32双核低功耗...ES...

如何把 锂电池 3.7V的电压降到3.3V?

使用LDO(低压差线性稳压)可以把锂电池3.7V降压到3.3V锂电池的标称电压是3.7V,充满电压是4.2V,使用LDO就可以把电压降到稳定3.3V,但LDO(低压差线性稳压)也...使...

锂电池 充电器电路图采用预处理-恒流充电方式,电池端电压低于...

是用单片机做还是用模拟电路啊?再问:最好都要吧!

充电芯片讲解?

电池充电器芯片是可以对多种电池进行充电控制的芯片,可以对单节锂电池,单节磷酸铁锂电池或两节到四节镍氢电池充电。特点●可以用usb接口或交流适配器对电...

锂电池 的安全充电电压极限是多少-ZOL问答

4条回答:【推荐答案】电池的充电电压范围主要取决于电池的类型和规格,而不是固定在特定值。一般而言,锂离子电池的充电电压上限约为4.2V,但具体上限会因不同型号...

8.4v 锂电池 电量指示?

1、显示8.4V两节锂电池的电量:按一下按钮,唤醒休眠,显示电量剩余值,7秒后自动熄灭,进入休眠状态。电池电压低于7.4V时能报警显示。检测电压值精度为0.1V。2...

求51 单片机 直接控制舵机转动角度的程序?

舵机频率50hz就是说一周期是20ms,占空比在百分之2.5到12.5可以从-90转到90度单片机内部有工作的晶振频率,定时器就是基于这个频率计时,根据程序可以知道,舵...

猜你喜欢