Other Parts Discussed in Thread: BQSTUDIO, BQ34Z100, GPCCHEM, BQEVSW, BQ20Z65
I am using BQ34z950 for my Lion battery pack (4 cell in series). The design capacity is not correct it shows 7809mA. I have the design for 40AH. How can I set this. Here is my GG file
ggfile34z950.log
. I looked some other post related to this and found some steps for charging/discharging to set Qmax. What are the steps for BQ34z950? Few More questions.
[Header] bq EVSW Version = 0.9.90 DeviceName = bq34z950 v0.02 Time = 24-04-2019 01:38:25 PM [Voltage(1st Level Safety)] COV Threshold = 4300 COV Recovery = 3900 CUV Threshold = 2900 CUV Recovery = 3000 [Current(1st Level Safety)] OC (1st Tier) Chg = 12000 OC (1st Tier) Dsg = 30000 Current Recovery Time = 8 AFE OC Dsg = 12 AFE OC Dsg Time = 0F AFE SC Chg Cfg = 77 AFE SC Dsg Cfg = 77 [Temperature(1st Level Safety)] Over Temp Chg = 55.0 OT Chg Recovery = 50.0 Over Temp Dsg = 60.0 OT Dsg Recovery = 55.0 [Voltage(2nd Level Safety)] SOV Threshold = 18000 SOV Time = 0 Cell Imbalance Current = 5 Cell Imbalance Fail Voltage = 1000 Cell Imbalance Time = 0 Battery Rest Time = 1800 [Current(2nd Level Safety)] SOC Chg = 11000 SOC Chg Time = 0 SOC Dsg = 30000 SOC Dsg Time = 0 [Temperature(2nd Level Safety)] SOT Chg = 65.0 SOT Chg Time = 0 SOT Dsg = 75.0 SOT Dsg Time = 0 [FET Verification(2nd Level Safety)] FET Fail Time = 0 [AFE Verification(2nd Level Safety)] AFE Fail Limit = 10 [Charge Inhibit Cfg(Charge Control)] Chg Inhibit Temp Low = 0.0 Chg Inhibit Temp High = 45.0 [Pre-Charge Cfg(Charge Control)] Pre-chg Current = 250 Pre-chg Temp = 12.0 Pre-chg Voltage = 3000 Recovery Voltage = 3100 [Fast Charge Cfg(Charge Control)] Fast Charge Current = 4000 Charging Voltage = 16800 Suspend Low Temp = -5.0 Suspend High Temp = 55.0 [Termination Cfg.(Charge Control)] Taper Current = 250 Taper Voltage = 300 TCA Clear % = 95 FC Set % = -1 FC Clear % = 98 [Cell Balancing Cfg(Charge Control)] Min Cell Deviation = 1750 [Charging Faults(Charge Control)] Over Charge Capacity = 300 [Data(SBS Configuration)] Rem Cap Alarm = 300 Rem Energy Alarm = 4320 Rem Time Alarm = 10 Init Battery Mode = 0081 Design Voltage = 16800 Spec Info = 0031 Manuf Date = 01-Jan-1980 Ser. Num. = 0001 Cycle Count = 26 CC Threshold = 4400 CF MaxError Limit = 100 Design Capacity = 32767 Design Energy = 63360 Manuf Name = Texas Inst. Device Name = bq34z950 Device Chemistry = LION [Configuration(SBS Configuration)] TDA Set % = 6 TDA Clear % = 8 FD Set % = 2 FD Clear % = 5 TDA Set Volt Threshold = 5000 TDA Set Volt Time = 0 TDA Clear Volt = 5500 [Integrity Data(System Data)] Reset Counter Partial = 250 Reset Counter Full = 14 [Manufacturer Info(System Data)] Manuf. Info = 0123456789ABCDEF0123 [Registers(Configuration)] Operation Cfg A = 0329 Operation Cfg B = 2448 Operation Cfg C = 0000 Permanent Fail Cfg = 0000 Non-Removable Cfg = 0000 [AFE(Configuration)] AFE PMS Threshold = 5500 [LED Cfg(LED Support)] LED Flash Period = 512 LED Blink Period = 1024 LED Delay = 100 LED Hold Time = 4 CHG Flash Alarm = 10 CHG Thresh 1 = 0 CHG Thresh 2 = 20 CHG Thresh 3 = 40 CHG Thresh 4 = 60 CHG Thresh 5 = 80 DSG Flash Alarm = 10 DSG Thresh 1 = 0 DSG Thresh 2 = 20 DSG Thresh 3 = 40 DSG Thresh 4 = 60 DSG Thresh 5 = 80 Sink Current = 3 [Power(Power)] Flash Update OK Voltage = 7500 Shutdown Voltage = 7000 Charger Present = 3000 Wake Current Reg = 00 [IT Cfg(Gas Gauging)] Load Select = 3 Load Mode = 0 Term Voltage = 12000 User Rate-mA = 0 User Rate-mW = 0 Reserve Cap-mAh = 0 Reserve Cap-mWh = 0 [Current Thresholds(Gas Gauging)] Dsg Current Threshold = 50 Chg Current Threshold = 25 Quit Current = 10 [State(Gas Gauging)] Qmax Cell 0 = 13811 Qmax Cell 1 = 7086 Qmax Cell 2 = 13811 Qmax Cell 3 = 8575 Qmax Pack = 7086 Update Status = 04 Delta Voltage = 62 [R_a0(Ra Table)] Cell0 R_a flag = FF55 Cell0 R_a 0 = 160 Cell0 R_a 1 = 166 Cell0 R_a 2 = 153 Cell0 R_a 3 = 151 Cell0 R_a 4 = 145 Cell0 R_a 5 = 152 Cell0 R_a 6 = 176 Cell0 R_a 7 = 204 Cell0 R_a 8 = 222 Cell0 R_a 9 = 254 Cell0 R_a 10 = 315 Cell0 R_a 11 = 437 Cell0 R_a 12 = 651 Cell0 R_a 13 = 1001 Cell0 R_a 14 = 1458 [R_a1(Ra Table)] Cell1 R_a flag = FF55 Cell1 R_a 0 = 160 Cell1 R_a 1 = 166 Cell1 R_a 2 = 153 Cell1 R_a 3 = 151 Cell1 R_a 4 = 145 Cell1 R_a 5 = 152 Cell1 R_a 6 = 176 Cell1 R_a 7 = 204 Cell1 R_a 8 = 222 Cell1 R_a 9 = 254 Cell1 R_a 10 = 315 Cell1 R_a 11 = 437 Cell1 R_a 12 = 651 Cell1 R_a 13 = 1001 Cell1 R_a 14 = 1458 [R_a2(Ra Table)] Cell2 R_a flag = FF55 Cell2 R_a 0 = 160 Cell2 R_a 1 = 166 Cell2 R_a 2 = 153 Cell2 R_a 3 = 151 Cell2 R_a 4 = 145 Cell2 R_a 5 = 152 Cell2 R_a 6 = 176 Cell2 R_a 7 = 204 Cell2 R_a 8 = 222 Cell2 R_a 9 = 254 Cell2 R_a 10 = 315 Cell2 R_a 11 = 437 Cell2 R_a 12 = 651 Cell2 R_a 13 = 1001 Cell2 R_a 14 = 1458 [R_a3(Ra Table)] Cell3 R_a flag = FF55 Cell3 R_a 0 = 160 Cell3 R_a 1 = 166 Cell3 R_a 2 = 153 Cell3 R_a 3 = 151 Cell3 R_a 4 = 145 Cell3 R_a 5 = 152 Cell3 R_a 6 = 176 Cell3 R_a 7 = 204 Cell3 R_a 8 = 222 Cell3 R_a 9 = 254 Cell3 R_a 10 = 315 Cell3 R_a 11 = 437 Cell3 R_a 12 = 651 Cell3 R_a 13 = 1001 Cell3 R_a 14 = 1458 [R_a0x(Ra Table)] xCell0 R_a flag = FFFF xCell0 R_a 0 = 160 xCell0 R_a 1 = 166 xCell0 R_a 2 = 153 xCell0 R_a 3 = 151 xCell0 R_a 4 = 145 xCell0 R_a 5 = 152 xCell0 R_a 6 = 176 xCell0 R_a 7 = 204 xCell0 R_a 8 = 222 xCell0 R_a 9 = 254 xCell0 R_a 10 = 315 xCell0 R_a 11 = 437 xCell0 R_a 12 = 651 xCell0 R_a 13 = 1001 xCell0 R_a 14 = 1458 [R_a1x(Ra Table)] xCell1 R_a flag = FFFF xCell1 R_a 0 = 160 xCell1 R_a 1 = 166 xCell1 R_a 2 = 153 xCell1 R_a 3 = 151 xCell1 R_a 4 = 145 xCell1 R_a 5 = 152 xCell1 R_a 6 = 176 xCell1 R_a 7 = 204 xCell1 R_a 8 = 222 xCell1 R_a 9 = 254 xCell1 R_a 10 = 315 xCell1 R_a 11 = 437 xCell1 R_a 12 = 651 xCell1 R_a 13 = 1001 xCell1 R_a 14 = 1458 [R_a2x(Ra Table)] xCell2 R_a flag = FFFF xCell2 R_a 0 = 160 xCell2 R_a 1 = 166 xCell2 R_a 2 = 153 xCell2 R_a 3 = 151 xCell2 R_a 4 = 145 xCell2 R_a 5 = 152 xCell2 R_a 6 = 176 xCell2 R_a 7 = 204 xCell2 R_a 8 = 222 xCell2 R_a 9 = 254 xCell2 R_a 10 = 315 xCell2 R_a 11 = 437 xCell2 R_a 12 = 651 xCell2 R_a 13 = 1001 xCell2 R_a 14 = 1458 [R_a3x(Ra Table)] xCell3 R_a flag = FFFF xCell3 R_a 0 = 160 xCell3 R_a 1 = 166 xCell3 R_a 2 = 153 xCell3 R_a 3 = 151 xCell3 R_a 4 = 145 xCell3 R_a 5 = 152 xCell3 R_a 6 = 176 xCell3 R_a 7 = 204 xCell3 R_a 8 = 222 xCell3 R_a 9 = 254 xCell3 R_a 10 = 315 xCell3 R_a 11 = 437 xCell3 R_a 12 = 651 xCell3 R_a 13 = 1001 xCell3 R_a 14 = 1458 [Device Status Data(PF Status)] PF Flags 1 = 0000 PF Flags 2 = 0100 [Data(Calibration)] CC Gain = 1.1 CC Delta = 1.1 Ref Voltage = 1225.00 AFE Pack Gain = 672.91 CC Offset = -0.242 Board Offset = 0 Int Temp Offset = 0.0 Ext1 Temp Offset = 0.0 Ext2 Temp Offset = 0.0 [Config(Calibration)] CC Current = 3000 Voltage Signal = 16800 Temp Signal = 298.0 CC Offset Time = 250 ADC Offset Time = 32 CC Gain Time = 250 Voltage Time = 1984 Temperature Time = 32 Cal Mode Timeout = 300 [Temp Model(Calibration)] Ext Coef 1 = -28285 Ext Coef 2 = 20848 Ext Coef 3 = -7537 Ext Coef 4 = 401.2 Ext Min AD = 0 Ext Max Temp = 401.2 Int Coef 1 = 0 Int Coef 2 = 0 Int Coef 3 = -11136 Int Coef 4 = 575.4 Int Min AD = 0 Int Max Temp = 575.4 [Current(Calibration)] Filter = 239 Deadband = 3 CC Deadband = 10.0 [bq2050 Config(DQ Communication)] bq20z753 Configuration = 10 Pins Pulled Down = 20 Pins Pulled Up = 05 Resistor Divider Gain = 6 mV to mAhr Scale = 640 AutoCal per Sleep = 0 BR_Low = 2700 BR_RC = 1000 Wr0_Low = 1775 Wr0_RC = 1225 Wr1_Low = 550 Wr1_RC = 2451 Rd0_Low = 1150 Rd1_Low = 1100 Rd_TO = 0 RD_RS = 300 Wr_0_to_1_Delay = 100 SlaveRsp_Delay = 3020
1) What should I write in Design voltage (battery nominal voltage(14.4V) or battery full charge voltage(16.8V))?
2) In EVSW it shows that maximum capacity can be 32676. Is there any way to increase this?
Please Help!.
Regards,
Aman.
