foxBMS - Unit Tests  1.2.1
The foxBMS Unit Tests API Documentation
vishay_ntcle317e4103sba.c File Reference

Resistive divider used for measuring temperature. More...

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Macros

#define TS_VISHAY_NTCLE317E4103SBA_ADC_VOLTAGE_V_MAX_V    ((float)((TS_VISHAY_NTCLE317E4103SBA_RESISTOR_DIVIDER_SUPPLY_VOLTAGE_V * ts_ntcle317e4103sbaLut[ts_ntcle317e4103sbaLutSize-1u].resistance_Ohm) / (ts_ntcle317e4103sbaLut[ts_ntcle317e4103sbaLutSize-1u].resistance_Ohm+TS_VISHAY_NTCLE317E4103SBA_RESISTOR_DIVIDER_RESISTANCE_R_1_R_2_Ohm)))
 
#define TS_VISHAY_NTCLE317E4103SBA_ADC_VOLTAGE_V_MIN_V    ((float)((TS_VISHAY_NTCLE317E4103SBA_RESISTOR_DIVIDER_SUPPLY_VOLTAGE_V * ts_ntcle317e4103sbaLut[0u].resistance_Ohm) / (ts_ntcle317e4103sbaLut[0u].resistance_Ohm+TS_VISHAY_NTCLE317E4103SBA_RESISTOR_DIVIDER_RESISTANCE_R_1_R_2_Ohm)))
 

Functions

int16_t TS_Vis01GetTemperatureFromLut (uint16_t adcVoltage_mV)
 returns temperature based on measured ADC voltage. More...
 
int16_t TS_Vis01GetTemperatureFromPolynomial (uint16_t adcVoltage_mV)
 returns temperature based on measured ADC voltage More...
 

Variables

static const TS_TEMPERATURE_SENSOR_LUT_s ts_ntcle317e4103sbaLut []
 
static const uint16_t ts_ntcle317e4103sbaLutSize = sizeof(ts_ntcle317e4103sbaLut) / sizeof(TS_TEMPERATURE_SENSOR_LUT_s)
 

Detailed Description

Resistive divider used for measuring temperature.

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Author
foxBMS Team
Date
2021-11-03 (date of creation)
Updated
2021-11-08 (date of last update)
Prefix
TS

Definition in file vishay_ntcle317e4103sba.c.

Macro Definition Documentation

◆ TS_VISHAY_NTCLE317E4103SBA_ADC_VOLTAGE_V_MAX_V

Defines for calculating the ADC voltage on the ends of the operating range. The ADC voltage is calculated with the following formula:

V_adc = ( ( V_supply * R_ntc ) / ( R + R_ntc ) )

Depending on the position of the NTC in the voltage resistor (R_1/R_2), different R_ntc values are used for the calculation.

Definition at line 118 of file vishay_ntcle317e4103sba.c.

◆ TS_VISHAY_NTCLE317E4103SBA_ADC_VOLTAGE_V_MIN_V

#define TS_VISHAY_NTCLE317E4103SBA_ADC_VOLTAGE_V_MIN_V    ((float)((TS_VISHAY_NTCLE317E4103SBA_RESISTOR_DIVIDER_SUPPLY_VOLTAGE_V * ts_ntcle317e4103sbaLut[0u].resistance_Ohm) / (ts_ntcle317e4103sbaLut[0u].resistance_Ohm+TS_VISHAY_NTCLE317E4103SBA_RESISTOR_DIVIDER_RESISTANCE_R_1_R_2_Ohm)))

Defines for calculating the ADC voltage on the ends of the operating range. The ADC voltage is calculated with the following formula:

V_adc = ( ( V_supply * R_ntc ) / ( R + R_ntc ) )

Depending on the position of the NTC in the voltage resistor (R_1/R_2), different R_ntc values are used for the calculation.

Definition at line 120 of file vishay_ntcle317e4103sba.c.

Function Documentation

◆ TS_Vis01GetTemperatureFromLut()

int16_t TS_Vis01GetTemperatureFromLut ( uint16_t  adcVoltage_mV)

returns temperature based on measured ADC voltage.

Parameters
adcVoltage_mVvoltage in mV
Returns
corresponding temperature in deci °C or INT16_MAX/INT16_MIN if NTC is shorted or got disconnected. The caller of this functions needs to check for these return values to prevent invalid data.

Definition at line 136 of file vishay_ntcle317e4103sba.c.

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◆ TS_Vis01GetTemperatureFromPolynomial()

int16_t TS_Vis01GetTemperatureFromPolynomial ( uint16_t  adcVoltage_mV)

returns temperature based on measured ADC voltage

Parameters
adcVoltage_mVvoltage in mV
Returns
corresponding temperature in deci °C

Definition at line 187 of file vishay_ntcle317e4103sba.c.

Variable Documentation

◆ ts_ntcle317e4103sbaLut

const TS_TEMPERATURE_SENSOR_LUT_s ts_ntcle317e4103sbaLut[]
static

LUT filled from higher resistance to lower resistance

Definition at line 65 of file vishay_ntcle317e4103sba.c.

◆ ts_ntcle317e4103sbaLutSize

const uint16_t ts_ntcle317e4103sbaLutSize = sizeof(ts_ntcle317e4103sbaLut) / sizeof(TS_TEMPERATURE_SENSOR_LUT_s)
static

size of the ts_ntcle317e4103sbaLut LUT

Definition at line 104 of file vishay_ntcle317e4103sba.c.