epcos_b57251v5103j060.h

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 *
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/**
 * @file    epcos_b57251v5103j060.h
 * @author  foxBMS Team
 * @date    2018-10-30 (date of creation)
 * @updated 2022-10-27 (date of last update)
 * @version v1.4.1
 * @ingroup TEMPERATURE_SENSORS
 * @prefix  TS
 *
 * @brief   Resistive divider used for measuring temperature
 *
 * @details Schematics:
 *
 *          V_supply
 *            --.--
 *              |
 *            +-.-+
 *            |   |
 *            |   |  R_1
 *            |   |
 *            +-.-+
 *              |
 *              .--- V_adc
 *              |
 *            +-.-+
 *            |   |
 *            |   |  R_2
 *            |   |
 *            +-.-+
 *              |
 *            --.--
 *             GND
 *
 */
 
#ifndef FOXBMS__EPCOS_B57251V5103J060_H_
#define FOXBMS__EPCOS_B57251V5103J060_H_
 
/*========== Includes =======================================================*/
#include "general.h"
 
/*========== Macros and Definitions =========================================*/
/**
 * Position of the NTC in the voltage resistor
 * true: NTC is positioned above the voltage tap for the ADC voltage.
 * This equals resistor R_1 in the above circuit diagram
 *
 * false: NTC is positioned below the voltage tap for the ADC voltage.
 * This equals resistor R_2 in the above circuit diagram
 */
#define TS_EPCOS_B57251V5103J060_POSITION_IN_RESISTOR_DIVIDER_IS_R_1 (false)
 
/** Resistor divider supply voltage in volt */
#define TS_EPCOS_B57251V5103J060_RESISTOR_DIVIDER_SUPPLY_VOLTAGE_V (2.5f)
 
/**
 * Resistance value of the other resistor (not the NTC) in the resistor
 * divider in Ohm.
 */
#define TS_EPCOS_B57251V5103J060_RESISTOR_DIVIDER_RESISTANCE_R_1_R_2_Ohm (10000.0f)
 
/*========== Extern Constant and Variable Declarations ======================*/
/**
 * @brief   returns temperature based on measured ADC voltage
 * @param   adcVoltage_mV voltage in mV
 * @return  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.
 */
extern int16_t TS_Epc00GetTemperatureFromLut(uint16_t adcVoltage_mV);
 
/**
 * @brief   returns temperature based on measured ADC voltage
 * @param   adcVoltage_mV   voltage in mV
 * @return  corresponding temperature in deci °C
 */
extern int16_t TS_Epc00GetTemperatureFromPolynomial(uint16_t adcVoltage_mV);
 
/*========== Extern Function Prototypes =====================================*/
 
/*========== Externalized Static Functions Prototypes (Unit Test) ===========*/
 
#endif /* FOXBMS__EPCOS_B57251V5103J060_H_ */