What Is A BLDC Ceiling Fan? How Does It Work?

You must all know how important the motor is in an appliance. The motor decides how efficiently the appliance functions, so it is important to consider a powerful motor before buying a ceiling fan. A BLDC fan has a very unique and efficient motor.

This motor consumes less energy than a regular ceiling fan, thus reducing the electricity consumption and the money you spend on it. Read through the article to know more about BLDC fans and how they work.


A Brief Idea About Induction/ Standard Fans

Induction Fan

Before we jump into a BLDC ceiling fan, let us understand how a regular fan works. All standard fans have four main components – main winding, auxiliary winding, a capacitor, and a rotor. The single-phase induction motor in the fan converts the electric energy to mechanical energy.

When the coils in the motor are supplied with energy, the capacitor creates a rotating magnetic field for the ceiling fan to operate. The created rotating field forces the rotor to move from one pole to another, thus causing the motor to rotate. The blades attached to the motor also start moving. The speed of the fan is controlled by controlling the voltage supplied.


What Is A BLDC Ceiling Fan?

BLDC Ceiling Fan

For a BLDC fan (Brushless Direct Current Motor fan), there are no mechanical commutators or brushes between the rotor and the stator. The motors commutate electronically.

Since there are no mechanical commutators or brushes between the rotor and stator, no heat is generated, nor is there any chance for wear and tear. This increases the lifespan of the BLDC fan. Also, it reduces energy consumption and lowers your electricity bill.


How Does A BLDC Ceiling Fan Work?

Unlike the standard fan, the speed for a BLDC fan is controlled by switching the frequency in the BLDC motor. To understand how a BLDC ceiling fan works, we first need to understand the main components in a BLDC drive. The components include –

  1. SMPS
  2. Microcontroller
  3. Inverter
  4. Motor

The SMPS in the BLDC drive converts the AC supply into DC supply. The microcontroller receives the input data from the remote control. This input is given as the output data to the inverter. It is this inverter that drives the data to the motor in the ceiling fan.

The working of the rotor and stator is a bit similar to the one in a standard fan, i.e., in both these fans, the movement happens when two similar poles meet. In a BLDC fan, the rotor is a permanent magnet, while the stator has a copper coil winding. When electric current passes through the copper coils, it produces magnetic flux.

An electronic drive constantly changes the polarity in the stator in a manner that when the rotor meets the stator, two similar poles meet, i.e., a north meets the north pole or the south meets the south pole.

When two similar poles meet continuously, there is a constant rotational movement resulting from which the motor rotates. When the motor turns, the blades of the fan also move.


Why Should You Consider A BLDC Fan?

Less Energy Consumption

Energy Consumption

We do not consider fans as something that consumes a lot of energy but what we fail to realize is, unlike all the other appliances, a fan operates 24/7. So, the energy consumed by a fan does matter in the long run. BLDC fan consumes less energy when compared to a standard fan. The former consumes about 30 watts while the latter consumes around 75 watts.


Less Electricity Consumption


If the energy consumption is high, then the electricity consumption will also increase. This means that a BLDC fan consumes less electricity than a regular fan. With a BLDC fan, you can have savings of up to 60%-65%


Noise Reduction

Since there are no brush or mechanical commutators between the rotor and stator, the noise level is less in a BLDC motor fan.


Longer Lifespan

It has a longer lifespan when compared to an induction fan. This is because a BLDC has no brush, so there is no possibility for wear and tear or heat production. So, the motor lasts longer, which directly increases the fan’s lifetime.


Also Read:

How To Choose A Ceiling Fan?

How To Clean A Ceiling Fan?



A BLDC motor is about 60% to 65% more efficient than the standard ceiling fan. It consumes less energy and electricity, thus saving us from spending too much money. If you are looking for an efficient, long-lasting fan, then you should choose a BLDC fan over a regular fan!

Comment down below if you found this article helpful? Are you planning on buying a BLDC fan now?

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