Performance of Richtek brushless DC motor control solution applied to the 40W air purifier
The rotor-stator fit is the critical factor in achieving quiet motor operation without vibrations. To ensure a rotor-stator combination that delivers optimized performance, the motor control algorithm must be very precise in order to perform accurate speed, magnetic field and current control signal generation as well as to collect feedback information. Building on long-term power management experience, Richtek has developed high-performance brushless DC motor driver solutions with unique algorithm. We have been successful in winning the trust from global Tier 1 home appliance suppliers.
Science cuts two ways, of course; its products can be used for both good and evil. But there's no turning back from science. The early warnings about technological dangers also come from science.
Richtek’s BLDC motor driver solution has been applied to the 40W air purifier manufactured by a world-renowned Japanese home appliance supplier. With Richtek’s motor driver module, the product acoustic noise level is successfully reduced to 25dBA (from 35dBA), which is a significant improvement compared with its previous motor driver solution. The diagram below shows the results of a comparison test.