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Estimating AC Line Frequency while Measuring RMS Voltage

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Author: Shawon Shahryiar

Last Updated: 2021-09-14

Package Version: 1.0.0.0

Category: Measurement

Downloaded: 321 times

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License: Open Software License 3.0 (OSL-3.0)  

This demo shows how we can estimate AC line frequency while measuring RMS voltage. This method is a very crude one but it can be improved with some changes. The concept here is to count the low-to-high and high-to-low transitions around half VCC during RMS measurement. The code is written with CCS PIC C compiler.

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1631639877_estimating_ac_li_other_pic_other_pic.rar [23.63KB] Other PIC Compilers
  • lib
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  • exa
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Project Blog

Estimating AC Line Frequency while Measuring RMS Voltage - ZMPT101B Demo
Project Setup

Project Setup

Estimating AC Line Frequency while Measuring RMS Voltage - ZMPT101B Demo

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Display

Display

Estimating AC Line Frequency while Measuring RMS Voltage - ZMPT101B Demo

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ZMPT101B AC Voltage Sensor Module

ZMPT101B AC Voltage Sensor Module

Estimating AC Line Frequency while Measuring RMS Voltage - ZMPT101B Demo

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Schematic

Schematic

Estimating AC Line Frequency while Measuring RMS Voltage - ZMPT101B Demo

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