AC Voltmeter what is helper IC

[Micro_brain]

Dear Friends
I want to make a AC VOLTMETER
Which IC will be better to use with microcontroller
the wave to Measure is not pure sine wave (like Triac output)
Thanks
Micro_brain

 

[dselec]

3 digits Digital volt meter
U can measure average voltage or peak depending on your programing.

 

[Micro_brain]

Thanks Dselec
no suitable average voltage or peak because of my input wave not pure sinewave
Thanks Micro_brain

 

[dselec]

Every wave has maximum or peak even a triac like wave .like i understand u want to know what is the max of your wave funny as it may be .
explain yourself or show us what is your wave so we can help u better.

 

[Micro_brain]

hai dselec
I want to measure output of a Dimmer(wide angle trigger Triac)
I want to make a bulb 50% blow constant bright(no effect voltage fluctuation)
the triac controlling a micricontroller
it want a feedback for PWM
what about MX536?
Thanks

 

[dselec]

bulb 50% blow constant bright(no effect voltage fluctuation)
50% u mean voltage or power .. remember 50% voltage is 25% power.
about main voltage fluctuation u need to read mains volt and change pwm to get constant average volt on bulb.
or u can average in software the input reading to get a stable reading of the pic display

 

[Micro_brain]

Thanks dselec
I want a bulb 1% to 100% constant brightness (actually it is heating filament, I can't use such as NTC, PTC, LM35 , etc..) by pressing UP and down switch and display two 7segment............ it is working OK.
a feedback voltage need to it for PWM, no suitable average voltage or peak
what about MX536? (True RMS-to-DC Converters)

thanks