Simple LED Flasher Circuit with IRFZ44N MOSFET

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Introduction

In this tutorial, we are working to make a “Simple LED Flasher Circuit with IRFZ44N MOSFET”. If we talk about the features of IRFZ44N, it is the small-signal N Channel MOSFET 25 degrees. The continuous Drain Current of this MOSFET is 49 Amp, while the pulse drains current is 160A. It has a minimum Gate threshold voltage of 2V and the maximum Gate threshold voltage is 4V.

The Maximum Gate Source Voltage is 20V (VGS). The Maximum Drain-Source Voltage is 55V (VDS). For the output load, the circuit is using a 10W LED. Since the blinking of lights is the major operation of this circuit, therefore, these kinds of circuits are generally utilized as art and for decoration purposes. For instance, they get utilized to decorate the homes at weddings, birthday parties, etc. Thus, the flasher circuit plays an artistic role.

IRFZ44-49A-55V-N-Channel-Power-MOSFET

Hardware Components

The following components are required to make LED Flasher Circuit

S.noComponentValueQty
1.MOSFETIRFZ44N1
2.Multi-color LED1
3.LED10W1
4.Resistor4.7k1
5.Power Supply12V1

IRFZ44N Pinout

IRFZ44-Pinout

For a detailed description of pinout, dimension features, and specifications download the datasheet of IRFZ44N

LED Flasher Circuit

simple-led-flasher-circuit-irfz44n-mosfet

Working Explanation

In this Simple LED Flasher Circuit, the 4.7K resistor and the wired RGB LED are together making the voltage divider. So, when the RGB changes its color a sudden change in voltage occurs which, hence triggers the MOSFET, and the current starts flowing from source to drain. Therefore, the load gets the power and in this case, our load is the 12V LED. The triggering occurs for a short period of time, therefore, multiple triggering happens. As a result, LED output LED flashes.

Application and Uses

  • Many devices need an indication circuit, so, it can be used as indicators for various devices.
  • It can also be used in warning devices to alert.
  • For the dec.
  • Sometimes flasher circuits are also used for square wave generation.