Thyristor (TRIAC) based dimmer implementation for TRIAC and Random SSR dimmers. More...

#include <MycilaDimmerThyristor.h>

Inheritance diagram for Mycila::ThyristorDimmer:

Collaboration diagram for Mycila::ThyristorDimmer:

Public Member Functions
void	setPin (gpio_num_t pin)
	Set the GPIO pin to use for the dimmer.
gpio_num_t	getPin () const
	Get the GPIO pin used for the dimmer.
void	setSemiPeriod (uint16_t semiPeriod)
	Set the semi-period of the grid frequency in us. It cannot be zero and it is required for proper dimmer operation.
uint16_t	getSemiPeriod () const
	Get the semi-period of the grid frequency in us.
uint16_t	getFiringDelay () const
	Get the firing delay in us of the dimmer in the range [0, semi-period] At 0% power, delay is equal to the semi-period: the dimmer is kept off At 100% power, the delay is 0 us: the dimmer is kept on This value is mostly used for TRIAC based dimmers but also in order to derive metrics based on the phase angle.
float	getPhaseAngle () const
	Get the phase angle in degrees (°) of the dimmer in the range [0, 180] At 0% power, the phase angle is equal to 180 At 100% power, the phase angle is equal to 0.
void	begin () override
	Enable a dimmer on a specific GPIO pin.
void	end () override
	Disable the dimmer.
const char *	type () const override
bool	calculateMetrics (Metrics &metrics, float gridVoltage, float loadResistance) const override
Public Member Functions inherited from Mycila::Dimmer
void	setDutyCycleLimit (float limit)
	Set the power duty cycle limit of the dimmer. The duty cycle will be clamped to this limit.
void	setDutyCycleMin (float min)
	Duty remapping (equivalent to Shelly Dimmer remapping feature). Useful to calibrate the dimmer when using for example a PWM signal to 0-10V analog convertor connected to a voltage regulator which is only working in a specific voltage range like 1-8V.
void	setDutyCycleMax (float max)
	Duty remapping (equivalent to Shelly Dimmer remapping feature). Useful to calibrate the dimmer when using for example a PWM signal to 0-10V analog convertor connected to a voltage regulator which is only working in a specific voltage range like 1-8V.
float	getDutyCycleLimit () const
	Get the power duty cycle limit of the dimmer.
float	getDutyCycleMin () const
	Get the remapped "0" of the dimmer duty cycle.
float	getDutyCycleMax () const
	Get the remapped "1" of the dimmer duty cycle.
void	enablePowerLUT (bool enable, uint16_t semiPeriod=0)
	Enable or disable the use of power LUT for dimmer curve The power LUT provides a non-linear dimming curve that is more aligned with human perception of brightness. If disabled, a linear dimming curve will be used.
bool	isPowerLUTEnabled () const
	Check if the power LUT is enabled.
uint16_t	getPowerLUTSemiPeriod () const
	Get the semi-period in us used for the power LUT calculations. If LUT is disabled, returns 0.
bool	isEnabled () const
	Check if the dimmer is enabled (if it was able to initialize correctly).
bool	isOnline () const
	Returns true if the dimmer is marked online.
void	setOnline (bool online)
	Set the online status of the dimmer.
void	on ()
	Turn on the dimmer at full power.
void	off ()
	Turn off the dimmer.
bool	isOff () const
	Check if the dimmer is off.
bool	isOn () const
	Check if the dimmer is on.
bool	isOnAtFullPower () const
	Check if the dimmer is on at full power.
bool	setDutyCycle (float dutyCycle)
	Set the power duty.
float	getDutyCycle () const
	Get the power duty cycle configured for the dimmer by teh user.
float	getDutyCycleMapped () const
	Get the remapped power duty cycle from the currently user set duty cycle.
float	getDutyCycleFire () const
	Get the real firing duty cycle (conduction duty cycle) applied to the dimmer in the range [0, 1].
bool	calculateHarmonics (float *array, size_t n) const

Static Public Member Functions
static void	onZeroCross (int16_t delayUntilZero, void *args)

Protected Member Functions
bool	_apply () override
bool	_calculateHarmonics (float *array, size_t n) const override

Additional Inherited Members
Static Protected Member Functions inherited from Mycila::Dimmer
static uint16_t	_lookupFiringDelay (float dutyCycle, uint16_t semiPeriod)
static float	_contrain (float amt, float low, float high)
static bool	_calculatePhaseControlHarmonics (float dutyCycleFire, float *array, size_t n)
static bool	_calculatePhaseControlMetrics (Metrics &metrics, float dutyCycleFire, float gridVoltage, float loadResistance)
Protected Attributes inherited from Mycila::Dimmer
bool	_enabled = false
bool	_online = false
float	_dutyCycle = 0.0f
float	_dutyCycleFire = 0.0f
float	_dutyCycleLimit = 1.0f
float	_dutyCycleMin = 0.0f
float	_dutyCycleMax = 1.0f
bool	_powerLUTEnabled = false
uint16_t	_semiPeriod = 0

Detailed Description

Thyristor (TRIAC) based dimmer implementation for TRIAC and Random SSR dimmers.

Definition at line 14 of file MycilaDimmerThyristor.h.

Constructor & Destructor Documentation

◆ ~ThyristorDimmer()

virtual Mycila::ThyristorDimmer::~ThyristorDimmer ( )

inlinevirtual

Definition at line 16 of file MycilaDimmerThyristor.h.

Member Function Documentation

◆ _apply()

bool Mycila::ThyristorDimmer::_apply ( )

inlineoverrideprotectedvirtual

Reimplemented from Mycila::Dimmer.

Definition at line 108 of file MycilaDimmerThyristor.h.

◆ _calculateHarmonics()

bool Mycila::ThyristorDimmer::_calculateHarmonics	(	float *	array,
		size_t	n ) const

inlineoverrideprotectedvirtual

Reimplemented from Mycila::Dimmer.

Definition at line 121 of file MycilaDimmerThyristor.h.

◆ begin()

void Mycila::ThyristorDimmer::begin ( )

overridevirtual

Enable a dimmer on a specific GPIO pin.

Warning: Dimmer won't be enabled if pin is invalid; Dimmer won't be activated until the ZCD is enabled

Reimplemented from Mycila::Dimmer.

Definition at line 55 of file MycilaDimmerThyristor.cpp.

◆ calculateMetrics()

bool Mycila::ThyristorDimmer::calculateMetrics	(	Metrics &	metrics,
		float	gridVoltage,
		float	loadResistance ) const

inlineoverridevirtual

Reimplemented from Mycila::Dimmer.

Definition at line 76 of file MycilaDimmerThyristor.h.

◆ end()

void Mycila::ThyristorDimmer::end ( )

overridevirtual

Disable the dimmer.

Warning: Dimmer won't be destroyed but won't turn on anymore even is a duty cycle is set.

Reimplemented from Mycila::Dimmer.

Definition at line 75 of file MycilaDimmerThyristor.cpp.

◆ getFiringDelay()

uint16_t Mycila::ThyristorDimmer::getFiringDelay ( ) const

inline

Get the firing delay in us of the dimmer in the range [0, semi-period] At 0% power, delay is equal to the semi-period: the dimmer is kept off At 100% power, the delay is 0 us: the dimmer is kept on This value is mostly used for TRIAC based dimmers but also in order to derive metrics based on the phase angle.

Definition at line 50 of file MycilaDimmerThyristor.h.

◆ getPhaseAngle()

float Mycila::ThyristorDimmer::getPhaseAngle ( ) const

inline

Get the phase angle in degrees (°) of the dimmer in the range [0, 180] At 0% power, the phase angle is equal to 180 At 100% power, the phase angle is equal to 0.

Definition at line 57 of file MycilaDimmerThyristor.h.

◆ getPin()

gpio_num_t Mycila::ThyristorDimmer::getPin ( ) const

inline

Get the GPIO pin used for the dimmer.

Definition at line 26 of file MycilaDimmerThyristor.h.

◆ getSemiPeriod()

uint16_t Mycila::ThyristorDimmer::getSemiPeriod ( ) const

inline

Get the semi-period of the grid frequency in us.

Definition at line 42 of file MycilaDimmerThyristor.h.

◆ onZeroCross()

void ARDUINO_ISR_ATTR Mycila::ThyristorDimmer::onZeroCross	(	int16_t	delayUntilZero,
		void *	args )

static

Callback to be called when a zero-crossing event is detected.

When using MycilaPulseAnalyzer library, this callback can be registered like this:

pulseAnalyzer.onZeroCross(Mycila::Dimmer::onZeroCross);

When using your own ISR with the RobotDyn ZCD, you can call this method with delayUntilZero == 200 since the length of the ZCD pulse is about 400 us.
When using your own ISR with the ZCd from Daniel S, you can call this method with delayUntilZero == 550 since the length of the ZCD pulse is about 1100 us.

Definition at line 86 of file MycilaDimmerThyristor.cpp.

◆ setPin()

void Mycila::ThyristorDimmer::setPin ( gpio_num_t pin )

inline

Set the GPIO pin to use for the dimmer.

Definition at line 21 of file MycilaDimmerThyristor.h.

◆ setSemiPeriod()

void Mycila::ThyristorDimmer::setSemiPeriod ( uint16_t semiPeriod )

inline

Set the semi-period of the grid frequency in us. It cannot be zero and it is required for proper dimmer operation.

Definition at line 31 of file MycilaDimmerThyristor.h.

◆ type()

const char * Mycila::ThyristorDimmer::type ( ) const

inlineoverridevirtual

Reimplemented from Mycila::Dimmer.

Definition at line 74 of file MycilaDimmerThyristor.h.

The documentation for this class was generated from the following files:

src/MycilaDimmerThyristor.h
src/MycilaDimmerThyristor.cpp

Public Member Functions

Static Public Member Functions

Protected Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ ~ThyristorDimmer()

Member Function Documentation

◆ _apply()

◆ _calculateHarmonics()

◆ begin()

◆ calculateMetrics()

◆ end()

◆ getFiringDelay()

◆ getPhaseAngle()

◆ getPin()

◆ getSemiPeriod()

◆ onZeroCross()

◆ setPin()

◆ setSemiPeriod()

◆ type()