foxBMS - Unit Tests  1.1.0
The foxBMS Unit Tests API Documentation
epcos_b57251v5103j060.c File Reference

Resistive divider used for measuring temperature. More...

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Macros

#define TS_EPCOS_B57251V5103J060_ADC_VOLTAGE_V_MAX_V    (float)((TS_EPCOS_B57251V5103J060_RESISTOR_DIVIDER_SUPPLY_VOLTAGE_V * ts_b57251v5103j060Lut[b57251v5103j060LutSize-1].resistance_Ohm) / (ts_b57251v5103j060Lut[b57251v5103j060LutSize-1].resistance_Ohm+TS_EPCOS_B57251V5103J060_RESISTOR_DIVIDER_RESISTANCE_R_1_R_2_Ohm))
 Defines for calculating the ADC voltage on the ends of the operating range. More...
 
#define TS_EPCOS_B57251V5103J060_ADC_VOLTAGE_V_MIN_V    (float)((TS_EPCOS_B57251V5103J060_RESISTOR_DIVIDER_SUPPLY_VOLTAGE_V * ts_b57251v5103j060Lut[0].resistance_Ohm) / (ts_b57251v5103j060Lut[0].resistance_Ohm+TS_EPCOS_B57251V5103J060_RESISTOR_DIVIDER_RESISTANCE_R_1_R_2_Ohm))
 Defines for calculating the ADC voltage on the ends of the operating range. More...
 

Functions

int16_t TS_Epc00GetTemperatureFromLut (uint16_t adcVoltage_mV)
 returns temperature based on measured ADC voltage More...
 
int16_t TS_Epc00GetTemperatureFromPolynomial (uint16_t adcVoltage_mV)
 returns temperature based on measured ADC voltage More...
 

Variables

static const TS_TEMPERATURE_SENSOR_LUT_s ts_b57251v5103j060Lut []
 
static uint16_t b57251v5103j060LutSize = sizeof(ts_b57251v5103j060Lut) / sizeof(TS_TEMPERATURE_SENSOR_LUT_s)
 

Detailed Description

Resistive divider used for measuring temperature.

SPDX-License-Identifier: BSD-3-Clause

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Author
foxBMS Team
Date
2018-10-30 (date of creation)
Updated
2021-03-22 (date of last update)
Prefix
TS

Definition in file epcos_b57251v5103j060.c.

Macro Definition Documentation

◆ TS_EPCOS_B57251V5103J060_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 (R1/R2),
     different R_ntc values are used for the calculation.

Definition at line 127 of file epcos_b57251v5103j060.c.

◆ TS_EPCOS_B57251V5103J060_ADC_VOLTAGE_V_MIN_V

#define TS_EPCOS_B57251V5103J060_ADC_VOLTAGE_V_MIN_V    (float)((TS_EPCOS_B57251V5103J060_RESISTOR_DIVIDER_SUPPLY_VOLTAGE_V * ts_b57251v5103j060Lut[0].resistance_Ohm) / (ts_b57251v5103j060Lut[0].resistance_Ohm+TS_EPCOS_B57251V5103J060_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 (R1/R2),
     different R_ntc values are used for the calculation.

Definition at line 129 of file epcos_b57251v5103j060.c.

Function Documentation

◆ TS_Epc00GetTemperatureFromLut()

int16_t TS_Epc00GetTemperatureFromLut ( 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 145 of file epcos_b57251v5103j060.c.

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◆ TS_Epc00GetTemperatureFromPolynomial()

int16_t TS_Epc00GetTemperatureFromPolynomial ( 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 195 of file epcos_b57251v5103j060.c.

Variable Documentation

◆ b57251v5103j060LutSize

uint16_t b57251v5103j060LutSize = sizeof(ts_b57251v5103j060Lut) / sizeof(TS_TEMPERATURE_SENSOR_LUT_s)
static

size of the ts_b57251v5103j060Lut LUT

Definition at line 113 of file epcos_b57251v5103j060.c.

◆ ts_b57251v5103j060Lut

const TS_TEMPERATURE_SENSOR_LUT_s ts_b57251v5103j060Lut[]
static

LUT filled from higher resistance to lower resistance

Definition at line 66 of file epcos_b57251v5103j060.c.