Detailed Description

Defines the POWER_MEAS_SINE_ANALYZER structure.

The POWER_MEAS_SINE_ANALYZER can be used to analyze the input sine wave and calculates several parameters like RMS, Average and Frequency

Data Fields
float32_t	v
	Input: Voltage Sine Signal. More...

float32_t	i
	Input Current Signal. More...

float32_t	sampleFreq
	Input: Signal Sampling Freq. More...

float32_t	threshold
	Input: Voltage level corresponding to zero i/p. More...

float32_t	vRms
	Output: RMS Value. More...

float32_t	vAvg
	Output: Average Value. More...

float32_t	vEma
	Output: Exponential Moving Average Value. More...

float32_t	acFreq
	Output: Signal Freq. More...

float32_t	acFreqAvg
	Output: Signal Freq. More...

float32_t	iRms
	Output: RMS Value of current. More...

float32_t	pRms
	Output: RMS Value of input power. More...

float32_t	vaRms
	Output: RMS VA. More...

float32_t	powerFactor
	Output: powerFactor. More...

int16_t	zcd
	Output: Zero Cross detected. More...

float32_t	vSum
	Internal : running sum for vac calculation over one sine cycles. More...

float32_t	vSqrSum
	Internal : running sum for vacc square calculation over one sine cycle. More...

float32_t	iSqrSum
	Internal : running sum for Iacc_rms calculation over one sine cycle. More...

float32_t	acFreqSum
	Internal : running sum of acFreq. More...

float32_t	pSum
	Internal : running sum for Pacc_rms calculation over one sine cycle. More...

float32_t	vaSumMul
	Internal : running sum for Pacc_rms calculation over one sine cycle. More...

float32_t	vNorm
	Internal: Normalized value of the input voltage. More...

float32_t	iNorm
	Internal: Normalized value of the input current. More...

int16_t	prevSign
	Internal: Flag to detect ZCD. More...

int16_t	currSign
	Internal: Flag to detect ZCD. More...

int32_t	nSamples
	Internal: No of samples in one cycle of the sine wave. More...

int32_t	nSamplesMin
	Internal: Lowerbound for no of samples in one sine wave cycle. More...

int32_t	nSamplesMax
	Internal: Upperbound for no of samples in one sine wave cycle. More...

float32_t	inverse_nSamples
	Internal: 1/( No of samples in one cycle of the sine wave) More...

float32_t	sqrt_inverse_nSamples
	Internal: sqrt(1/( No of samples in one cycle of the sine wave)) More...

int16_t	slewPowerUpdate
	Internal: used to slew update of the power value. More...

float32_t	pRmsSumMul
	Internal: used to sum Pac value over multiple sine cycles (100) More...

int16_t	jitterCount
	Internal: used to store jitter information due to noise on input. More...

float32_t	emaFilterMultiplier
	Internal: multiplier value used for the exponential moving average filter. More...

Field Documentation

◆ v

float32_t POWER_MEAS_SINE_ANALYZER::v

Input: Voltage Sine Signal.

◆ i

float32_t POWER_MEAS_SINE_ANALYZER::i

Input Current Signal.

◆ sampleFreq

float32_t POWER_MEAS_SINE_ANALYZER::sampleFreq

Input: Signal Sampling Freq.

◆ threshold

float32_t POWER_MEAS_SINE_ANALYZER::threshold

Input: Voltage level corresponding to zero i/p.

◆ vRms

float32_t POWER_MEAS_SINE_ANALYZER::vRms

Output: RMS Value.

◆ vAvg

float32_t POWER_MEAS_SINE_ANALYZER::vAvg

Output: Average Value.

◆ vEma

float32_t POWER_MEAS_SINE_ANALYZER::vEma

Output: Exponential Moving Average Value.

◆ acFreq

float32_t POWER_MEAS_SINE_ANALYZER::acFreq

Output: Signal Freq.

◆ acFreqAvg

float32_t POWER_MEAS_SINE_ANALYZER::acFreqAvg

Output: Signal Freq.

◆ iRms

float32_t POWER_MEAS_SINE_ANALYZER::iRms

Output: RMS Value of current.

◆ pRms

float32_t POWER_MEAS_SINE_ANALYZER::pRms

Output: RMS Value of input power.

◆ vaRms

float32_t POWER_MEAS_SINE_ANALYZER::vaRms

Output: RMS VA.

◆ powerFactor

float32_t POWER_MEAS_SINE_ANALYZER::powerFactor

Output: powerFactor.

◆ zcd

int16_t POWER_MEAS_SINE_ANALYZER::zcd

Output: Zero Cross detected.

◆ vSum

float32_t POWER_MEAS_SINE_ANALYZER::vSum

Internal : running sum for vac calculation over one sine cycles.

◆ vSqrSum

float32_t POWER_MEAS_SINE_ANALYZER::vSqrSum

Internal : running sum for vacc square calculation over one sine cycle.

◆ iSqrSum

float32_t POWER_MEAS_SINE_ANALYZER::iSqrSum

Internal : running sum for Iacc_rms calculation over one sine cycle.

◆ acFreqSum

float32_t POWER_MEAS_SINE_ANALYZER::acFreqSum

Internal : running sum of acFreq.

◆ pSum

float32_t POWER_MEAS_SINE_ANALYZER::pSum

Internal : running sum for Pacc_rms calculation over one sine cycle.

◆ vaSumMul

float32_t POWER_MEAS_SINE_ANALYZER::vaSumMul

Internal : running sum for Pacc_rms calculation over one sine cycle.

◆ vNorm

float32_t POWER_MEAS_SINE_ANALYZER::vNorm

Internal: Normalized value of the input voltage.

◆ iNorm

float32_t POWER_MEAS_SINE_ANALYZER::iNorm

Internal: Normalized value of the input current.

◆ prevSign

int16_t POWER_MEAS_SINE_ANALYZER::prevSign

Internal: Flag to detect ZCD.

◆ currSign

int16_t POWER_MEAS_SINE_ANALYZER::currSign

Internal: Flag to detect ZCD.

◆ nSamples

int32_t POWER_MEAS_SINE_ANALYZER::nSamples

Internal: No of samples in one cycle of the sine wave.

◆ nSamplesMin

int32_t POWER_MEAS_SINE_ANALYZER::nSamplesMin

Internal: Lowerbound for no of samples in one sine wave cycle.

◆ nSamplesMax

int32_t POWER_MEAS_SINE_ANALYZER::nSamplesMax

Internal: Upperbound for no of samples in one sine wave cycle.

◆ inverse_nSamples

float32_t POWER_MEAS_SINE_ANALYZER::inverse_nSamples

Internal: 1/( No of samples in one cycle of the sine wave)

◆ sqrt_inverse_nSamples

float32_t POWER_MEAS_SINE_ANALYZER::sqrt_inverse_nSamples

Internal: sqrt(1/( No of samples in one cycle of the sine wave))

◆ slewPowerUpdate

int16_t POWER_MEAS_SINE_ANALYZER::slewPowerUpdate

Internal: used to slew update of the power value.

◆ pRmsSumMul

float32_t POWER_MEAS_SINE_ANALYZER::pRmsSumMul

Internal: used to sum Pac value over multiple sine cycles (100)

◆ jitterCount

int16_t POWER_MEAS_SINE_ANALYZER::jitterCount

Internal: used to store jitter information due to noise on input.

◆ emaFilterMultiplier

float32_t POWER_MEAS_SINE_ANALYZER::emaFilterMultiplier

Internal: multiplier value used for the exponential moving average filter.