BQ78350-R1A: 6S电池在给电机供电时在4-7伏左右跳动，无法正常供电。

wenzhen xu

Part Number: BQ78350-R1A
Other Parts Discussed in Thread: BQ78350, BQ76930, BQ76200

6S电池，在给电机供电的时候电压在4-7伏之间变化，无法正常上电压。怀疑可能是电机内部的电容瞬时充电电流过大导致的三极管关闭，但是关闭OCD保护也无效。

在通电流计给电池充电器供电时，可以正常工作，并且对DATA Memory里设置的OCD Threshold电流可以起到相对应的断电反应。

导出的DATA Memory与两次log记录如附件所示，谢谢！DM.gg.csv

1.log

Fri Mar 25 16:43:29 CST 2022

Device Version Info = 1e9b_1_03
BQZ Device Name = bq78350_R1
BQZ Firmware Version = V1_03_BLD22

Design Capacity = 4400
Design Voltage = 3600
Specification Info = 0x0031
Manufacturer Date = 1980-1-1
Serial Number = 0x0001
Manufacturer Name = Texas Instruments
Device Name = bq78350
Device Chemistry = LION

Sample,DateTime,ElapsedTime,ManufAccess,RemCapAlarm,RemTimeAlarm,BattMode,@Rate(@),@TimeFull,@TimeEmpty,@RateOK,Temperature,Voltage,Current,AvgCurr,MaxErr,RSOC,ASOC,RemCap,FullChgCap,RunTimeEmty,RunTimeEmty,AvgTimeFull,ChgCurr,ChgVolt,BattStat,CycleCnt,PendingEdv,SoH,OpStatA,OpStatB,TempRange,ChgStat,GaugeStat,MfgStat,SafetyAlertAB,SafetyStatAB,SafetyAlertCD,SafetyStatCD,PFAlertAB,PFStatAB,PFStatAB,CellVolt1,CellVolt2,CellVolt3,CellVolt4,CellVolt5,CellVolt6,CellVolt7,CellVolt8,CellVolt9,CellVolt10,CellVolt11,CellVolt12,CellVolt13,CellVolt14,CellVolt15,ExtAvgCellVolt,TS1 Temp,TS2 Temp,TS3 Temp,CellTemp,FetTemp,GaugeInternalTemp,LogRowTime(ms),LogStatus
1,2022-03-25 16:43:31,1.007,0x0301,300,10,0x6001,0,65535,65535,1,13.6,25095,0,-3,100,94,94,4102,4400,65535,65535,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4189,4185,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.5,963,SUCCESS
2,2022-03-25 16:43:32,2.013,0x0301,300,10,0x6001,0,65535,65535,1,13.6,25096,0,-3,100,94,94,4102,4400,65535,65535,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4190,4186,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.5,938,SUCCESS
3,2022-03-25 16:43:33,3.020,0x0301,300,10,0x6001,0,65535,65535,1,13.6,25096,0,-3,100,94,94,4102,4400,65535,65535,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4180,4187,4176,4174,4190,4184,0,0,0,0,0,0,0,0,0,2055,,13.6,-273.2,13.6,13.6,25.4,999,ERROR : Please check D:\Desktop\0325.log.err
4,2022-03-25 16:43:34,4.954,0x0301,300,10,0x6001,0,65535,65535,1,13.6,25094,0,-4,100,94,94,4102,4400,65535,61530,65535,3000,25200,0x00C0,1,,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4190,4185,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.4,935,ERROR : Please check D:\Desktop\0325.log.err
5,2022-03-25 16:43:35,5.922,,300,10,0x6001,0,65535,65535,1,13.6,25095,0,,100,94,94,4102,4400,65535,61530,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4190,4185,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.4,1514,ERROR : Please check D:\Desktop\0325.log.err
6,2022-03-25 16:43:38,8.106,0x0301,300,10,0x6001,0,65535,65535,1,13.6,,0,-3,100,94,94,4102,4400,65535,65535,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4184,4176,4173,4188,4173,0,0,0,0,,0,0,0,0,2051,13.6,13.6,-273.2,13.6,13.6,25.4,940,ERROR : Please check D:\Desktop\0325.log.err
7,2022-03-25 16:43:39,9.090,0x0301,300,10,0x6001,0,65535,65535,1,13.6,25093,-14,-4,100,94,94,4102,4400,17580,61530,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4189,4186,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.5,940,SUCCESS
8,2022-03-25 16:43:40,10.097,0x0301,300,10,0x6001,0,65535,65535,1,

2.log

Fri Mar 25 16:48:50 CST 2022

Device Version Info = 1e9b_1_03
BQZ Device Name = bq78350_R1
BQZ Firmware Version = V1_03_BLD22

Design Capacity = 4400
Design Voltage = 3600
Specification Info = 0x0031
Manufacturer Date = 1980-1-1
Serial Number = 0x0001
Manufacturer Name = Texas Instruments
Device Name = bq78350
Device Chemistry = LION

Sample,DateTime,ElapsedTime,ManufAccess,RemCapAlarm,RemTimeAlarm,BattMode,@Rate(@),@TimeFull,@TimeEmpty,@RateOK,Temperature,Voltage,Current,AvgCurr,MaxErr,RSOC,ASOC,RemCap,FullChgCap,RunTimeEmty,RunTimeEmty,AvgTimeFull,ChgCurr,ChgVolt,BattStat,CycleCnt,PendingEdv,SoH,OpStatA,OpStatB,TempRange,ChgStat,GaugeStat,MfgStat,SafetyAlertAB,SafetyStatAB,SafetyAlertCD,SafetyStatCD,PFAlertAB,PFStatAB,PFStatAB,CellVolt1,CellVolt2,CellVolt3,CellVolt4,CellVolt5,CellVolt6,CellVolt7,CellVolt8,CellVolt9,CellVolt10,CellVolt11,CellVolt12,CellVolt13,CellVolt14,CellVolt15,ExtAvgCellVolt,TS1 Temp,TS2 Temp,TS3 Temp,CellTemp,FetTemp,GaugeInternalTemp,LogRowTime(ms),LogStatus
1,2022-03-25 16:48:51,1.005,0x0301,,10,0x6001,0,65535,65535,1,13.6,25094,0,-3,100,94,94,4101,4400,65535,65535,65535,,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4189,4185,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.4,969,ERROR : Please check D:\Desktop\325.log.err
2,2022-03-25 16:48:53,3.127,0x0301,300,10,,0,65535,65535,1,13.6,25094,0,-4,,94,94,4101,4400,65535,61515,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4189,4185,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.5,990,ERROR : Please check D:\Desktop\325.log.err
3,2022-03-25 16:48:54,4.144,0x0301,300,10,,0,65535,65535,1,13.6,25094,0,-4,100,94,94,4101,4400,65535,61515,65535,3000,25200,0x00C0,,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,,4177,4175,4189,4185,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.4,1327,ERROR : Please check D:\Desktop\325.log.err
4,2022-03-25 16:48:56,5.500,0x0301,300,10,0x6001,0,65535,65535,1,13.6,25094,0,-3,100,94,,4101,4400,65535,65535,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4189,4185,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.5,1037,ERROR : Please check D:\Desktop\325.log.err
5,2022-03-25 16:48:57,6.955,0x0301,300,10,,0,65535,65535,1,13.6,25092,-21,-3,100,94,94,4101,4400,65535,65535,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4189,4185,0,0,0,0,0,0,0,0,0,2055,13.6,13.6,-273.2,13.6,13.6,25.5,939,ERROR : Please check D:\Desktop\325.log.err
6,2022-03-25 16:48:58,7.918,0x0301,300,10,0x6001,0,65535,65535,1,13.6,25094,0,-4,100,94,94,4101,4400,11717,61515,65535,3000,25200,0x00C0,1,0,100,0x0103,0x8000,0x04,0x02,0x40,0x0210,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,0x0000,4181,4187,4177,4175,4189,4185,0,0,0,0,0,

2 年多前