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Simple Mains Phase Detector Circuit using CMOS ICs

This article talks about two easy and Simple Mains Phase Detector Circuit using CMOS ICs like IC 4001 and IC 4060.

They find if mains AC 220V or 120V is present in air.

No need to touch the mains.

Circuit uses antenna to feel mains power in air.

Circuit Working (using IC 4001):

IC 4001 is chip with four 2-input NOR gates.

It help us understand how circuit works and how to makes it.

Steps are given below of its circuit working:

CMOS IC inputs have high impedance so they catch signals from air easily like RF noise.

When CMOS input feels AC mains signal it gives strong output from gate.

In this circuit CD4001 inputs sense 50Hz or 60Hz mains AC from air.

Output shows signal using LEDs.

Parts List:

Component TypeValueQuantity
Resistors (1/4 watt)330Ω1
SemiconductorsIC CD40011
LED Green 5mm 20mA1
LED Red 5mm 20mA1
Antenna 4 inch wire1
9V Cell battery1

How to Build:

To build a Simple Mains Phase Detector Circuit using IC CD4001 follow the below mentioned connection process:

Circuit Working (using IC 4060):

Parts List:

Component TypeValueQuantity
Resistor (1/4 watt)1k1
SemiconductorsIC 40601
LED any 5mm 20mA1
Antenna1
9V Battery1

CMOS IC gives reaction when input feel AC mains signal like 50Hz or 60Hz.

Signal get stronger inside IC and come out from right gate output.

Here circuit uses IC 4060.

Pin 11 is used to catch 50Hz or 60Hz AC mains.

If IC senses the signal pin 7 give output and LED turn ON through 1k resistor.

LED show AC mains is present.

This circuit is helpful for checking AC mains or special frequencies.

How to Build:

To build a Mains Phase Detector Circuit using IC 4060 its connections process is mentioned below:

Safety Measures:

Conclusion:

Simple Mains Phase Detector Circuit using CMOS ICs is cheap and reliable way to find phase changes in AC mains.

These circuits use low power and give good accuracy and is helpful in power control and sync systems.

It is easy to use and is efficient so many people like this method for checking phase angle in power lines.

References:

Datasheet IC CD4001

A Power And Delay Efficient Circuit For Cmos Phase Detector And Phase Frequency Detector

Datasheet IC 4060

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