Negative temperature coefficient thermistor (NTC) class. More...

#include <NTCT_Sensor.h>

Collaboration diagram for TNTC:

Public Types
enum	TNTC_Scala { enum_B25_100_3988 = 1 , enum_B25_100_3900 = 2 }
	NTC temperature scale enumeration. More...

enum	TNTC_Value { enum_10000_Ohm = 1 }
	NTC base resistance ebuneration. More...

Public Member Functions
BOOL	Temperature_To_Resistance (F32 *f32_Resistance, F32 f32_Temperature, TNTC_Scala enum_NTC_Scala, TNTC_Value enum_NTC_Value)
	The function calculates the electrical resistance of NTC at given temperature and defined resistance R0 at 0�C for a NTC element. More...

BOOL	Resistance_To_Temperature (F32 *f32_Temperature, F32 f32_Resistance, TNTC_Scala enum_NTC_Scala, TNTC_Value enum_NTC_Value)
	The function calculates temperature by given electrical resistance of a NTC sensor. More...

BOOL	Time_To_Temperature (F32 *f32_Temperature, F32 f32_Charging_Time, TNTC_Scala enum_NTC_Scala, TNTC_Value enum_NTC_Value, F32 f32_Relative_Reference_Voltage, F32 f32_Capacitance)
	The function calculates temperature by given charging time. More...

Private Member Functions
BOOL	Get_Base_Resistance (F32 *f32_Base_Resistance, TNTC_Value enum_NTC_Value)
	The function returns base electrical resistance in ohms. More...

BOOL	Get_Scala_Coefficients (F32 f32_Betta, F32 f32_Base_Temperature, TNTC_Scala enum_NTC_Scala)
	The function returns base electrical resistance in ohms. More...

Detailed Description

Negative temperature coefficient thermistor (NTC) class.

Member Enumeration Documentation

◆ TNTC_Scala

enum TNTC::TNTC_Scala

NTC temperature scale enumeration.

Enumerator
enum_B25_100_3988	B25/100 B=3988 scala.
enum_B25_100_3900	B25/100 B=3900 scala.

◆ TNTC_Value

enum TNTC::TNTC_Value

NTC base resistance ebuneration.

Enumerator
enum_10000_Ohm	Base resistance 10kOhm.

Member Function Documentation

◆ Get_Base_Resistance()

BOOL TNTC::Get_Base_Resistance	(	F32 *	f32_Base_Resistance,
		TNTC_Value	enum_NTC_Value
	)

private

The function returns base electrical resistance in ohms.

Note: None

Parameters

[out]	*f32_Base_Resistance	Base resistance at given temperature.
[in]	enum_NTC_Value	Value of the NTC termomenter.

Returns: Converstion status code

Return values

true	Converstion successed
false	Conversuin error

Override: Not allowed

Attention: None

UML diagram

References enum_10000_Ohm.

Referenced by Resistance_To_Temperature().

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◆ Get_Scala_Coefficients()

BOOL TNTC::Get_Scala_Coefficients	(	F32 *	f32_Betta,
		F32 *	f32_Base_Temperature,
		TNTC_Scala	enum_NTC_Scala
	)

private

The function returns base electrical resistance in ohms.

Note: None

Parameters

[out]	*f32_Betta	Betta coefficient.
[out]	*f32_Base_Temperature	Base temperature in degree celsius.
[in]	enum_NTC_Scala	Temperature scala

Returns: Converstion status code

Return values

true	Converstion successed
false	Conversuin error

Override: Not allowed

Attention: None

UML diagram

References enum_B25_100_3900, and enum_B25_100_3988.

Referenced by Resistance_To_Temperature().

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◆ Resistance_To_Temperature()

BOOL TNTC::Resistance_To_Temperature	(	F32 *	f32_Temperature,
		F32	f32_Resistance,
		TNTC_Scala	enum_NTC_Scala,
		TNTC_Value	enum_NTC_Value
	)

The function calculates temperature by given electrical resistance of a NTC sensor.

Note: None

Parameters

[out]	*f32_Temperature	Temperature in degree celsius.
[in]	f32_Resistance	Resistance at given temperature.
[in]	enum_NTC_Scala	Temperature scala
[in]	enum_NTC_Value	Value of the NTC element.

Returns: Converstion status code

Return values

true	Converstion successed
false	Conversuin error

Override: Not allowed

Attention: None

UML diagram

References Get_Base_Resistance(), and Get_Scala_Coefficients().

Referenced by TP018_39_KG3_BLA_T1::Execute(), and Time_To_Temperature().

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◆ Temperature_To_Resistance()

BOOL TNTC::Temperature_To_Resistance	(	F32 *	f32_Resistance,
		F32	f32_Temperature,
		TNTC_Scala	enum_NTC_Scala,
		TNTC_Value	enum_NTC_Value
	)

The function calculates the electrical resistance of NTC at given temperature and defined resistance R0 at 0�C for a NTC element.

Note: None

Parameters

[out]	*f32_Resistance	Resistance at given temperature.
[in]	f32_Temperature	Temperature in degree celsius.
[in]	enum_NTC_Scala	Temperature scala
[in]	enum_NTC_Value	Value of the NTC element.

Returns: Converstion status code

Return values

true	Converstion successed
false	Converstion error

Override: Not allowed

Attention: None

UML diagram

◆ Time_To_Temperature()

BOOL TNTC::Time_To_Temperature	(	F32 *	f32_Temperature,
		F32	f32_Charging_Time,
		TNTC_Scala	enum_NTC_Scala,
		TNTC_Value	enum_NTC_Value,
		F32	f32_Relative_Reference_Voltage,
		F32	f32_Capacitance
	)

The function calculates temperature by given charging time.

Note: None

Parameters

[out]	*f32_Temperature	Temperature in degree celsius.
[in]	f32_Charging_Time	Charging time of the slope capacitor in seconds.
[in]	enum_NTC_Scala	Temperature scala.
[in]	enum_NTC_Value	Value of the NTC element.
[in]	f32_Relative_Reference_Voltage	Comparator relative reference voltage in range 0.1 to 0.9.
[in]	f32_Capacitance	Capacitance of the integration capacitor in farad.