Rapid development of intelligent fan based on doodle IOT platform

Intelligent fan is a common intelligent device, users can use mobile app to easily control, through remote control switch, wind speed, scene linkage to easily create a warm, relaxed and comfortable indoor space. This tutorial uses keil5 programming, based on doodle IOT platform and sandwich BLDC function board, introduces how to quickly develop a prototype […]

Read More

Schematic analysis of BLDC motor controlled by back EMF

1. Overview The basic principle of BLDC without hall is similar to that of BLDC with hall. The so-called “six step commutation method” is used. According to the current position of rotor, the stator winding is electrified in certain order to make BLDC motor rotate. The difference is that Hall effect sensor is not needed […]

Read More

Basic principle analysis of BLDC motor control

BLDC motors are widely used in various applications, such as computer cooling fans, disk drives, wireless power tools, electric bicycles and turntables. As the price continues to decline, the motor will be used even more widely, and the most cost sensitive application is another matter. However, with the increasing demand, more and more BLDC motors […]

Read More