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How to measure AC voltage with without converting to DC

local thuri

Hi friends,

I need AC voltage (0v to 450V) measurement circuit with C.

I need such types of circuits that directly measures ac voltage without converting it to dc.

I also requires code in c.

please post it..

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    #include "adc.h"

...

adc_init();
adc_set_scale(450);
adc_set_mode(ADC_MODE_AC);
adc_start();
freq = adc_get_frequency();
volt = adc_get_voltage();
crest = adc_get_crest_factor();
power = adc_get_power();
pf = adc_get_power_factor();
spectra = adc_compute_fft();
adc_stop();

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    #include "adc.h"

...

adc_init();
adc_set_scale(450);
adc_set_mode(ADC_MODE_AC);
adc_start();
freq = adc_get_frequency();
volt = adc_get_voltage();
crest = adc_get_crest_factor();
power = adc_get_power();
pf = adc_get_power_factor();
spectra = adc_compute_fft();
adc_stop();

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