DC burshless fans with High air flow and high air pressure are mainly used for server

PWM (Pulse Width Modulation) or modulation with the width of an impulse, is a widespread term in the world of electrical engineering. It has a broad range of application, like in the field of telecommunications, audio equipment, servo motors, etc. Interesting for us enthusiasts is the application of PWM in voltage regulation. If you’ve followed our recent blog article on MOSFETs and VRMs, you know what we are talking about. Some of you probably already know the principle on which pulse width modulation (PWM) works, but nevertheless, we will explain how it actually controls the speed of a fan or a pump.

In short, PWM operates like a switch which constantly cycles on and off, thereby regulating the amount of power the fan or pump motor gains. The PWM system that is used for controlling fans and pumps works with the motor, either getting +12V (full power) or 0V (no power). To have a better understanding how this works, take a look at the chart bellow.

A9212BB
92x92x25 mm
0.88~1.74 m3/min

Material
Frame: Plastic PBT 94V0
Impellen Plastic PBT 94V0
Lead Wire: AWG26 "+" Red "-" Black Standard UL 1007
Option: Signal output
Bearing: Ball bearing or Sleeve bearing

About us:

Everrich Electronic(Dong Guan)Co.,Ltd, a subsidiary of Cheng Home Electronics Co.,Ltd, is the Taiwan based enterprise which is specialized in designing and manufacturing of DC brushless fans and motors. The company was established in Oct.1985. It has been 30 years experience of professional design and manufacture of DC fans, motors. We use advanced auto production equipment and testing machines,and we have senior professional & manager and technique power is strong.

We have continuously made all series of DC brushless fans from size 25mm to 172mm,and thickness from 6mm to 50mm. We would like to establish a partnership with each customer by developing any kind of fan and motor for customers special needs in PCs,desktop computers,telecom,car,projector,copy machine,fragrance lamp and industrial,medical,home application and other equipments.

We produce high efficiency,quality and stability. Our fans low noise,high airflow,long life.We have passed many domestic / international professional certificate such as CCC,UL,TUV. The product are sold to USA, Japan, Korea, South-east Asia and Hong Kong etc. around the world. Besides, we have a cooperation with world famous companies. In order to always keep in the leading position in the world, we continually import equipment,develop new product and create new market.