CONTROL SYSTEM FOR DRIVING BRUSHLESS DIRECT CURRENT MOTOR FOR FAN FILTER

摘要

PURPOSE: A BLDC motor driving system for a fan filter unit is provided to efficiently control the speed of a motor with reduced power consumption. CONSTITUTION: A master control apparatus(100) comprises a power transform unit(110), a communication unit(120), and a central processing unit(130). The power transform unit receives commercial AC voltage and converts the AC voltage into the DC voltage supplied to a BLDC control unit(210). The communication unit performs data communication with a central monitoring system. Slab devices(200) comprises a motor driving unit(220) and the BLDC control unit which controls a BLDC motor(300) according to control command signals input from the master control apparatus.