参数资料
型号: TMP512AIRSAT
厂商: TEXAS INSTRUMENTS INC
元件分类: 模拟信号调理
英文描述: SPECIALTY ANALOG CIRCUIT, PQCC16
封装: GREEN, PLASTIC, QFN-16
文件页数: 24/61页
文件大小: 1758K
代理商: TMP512AIRSAT
Max_Current=Current_LSB
32767
Max_Current=0.06226
Max_ShuntVoltage=Max_Current_Before_Overflow
R
SHUNT
Max_ShuntVoltage=0.3113
MaximumPower=Max_Current_Before_Overflow
V
BUS_MAX
MaximumPower=1.992
Corrected_Full_Scale_Cal=trunc
Cal
MeasShuntCurrent
TMP513_Current
Corrected_Full_Scale_Cal=3462
SBOS491A
– JUNE 2010 – REVISED MAY 2011
7. Compute the maximum current and shunt voltage values (before overflow), as shown by Equation 20 and
Equation 21. Note that both Equation 20 and Equation 21 involve an If - then condition.
(20)
If Max_Current
≥ MaxPossible_I then
Max_Current_Before_Overflow = MaxPossible_I
Else
Max_Current_Before_Overflow = Max_Current
End If
(Note that Max_Current is less than MaxPossible_I in this example.)
Max_Current_Before_Overflow = 0.06226
(21)
If Max_ShuntVoltage
≥ VSHUNT_MAX
Max_ShuntVoltage_Before_Overflow = VSHUNT_MAX
Else
Max_ShuntVoltage_Before_Overflow= Max_ShuntVoltage
End If
(Note that Max_ShuntVoltage is less than VSHUNT_MAX in this example.)
Max_ShuntVoltage_Before_Overflow = 0.3113
8. Compute the maximum power with Equation 22.
(22)
9. (Optional second calibration step.) Compute the corrected full-scale calibration value based on measured
current.
TMP513_Current = 0.06226
MeaShuntCurrent = 0.05
(23)
30
Copyright
2010–2011, Texas Instruments Incorporated
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