A Single-Chip Design for the Three-phase BDCM System

摘要

In this work,we present a sensorless single-chip design for the three-phase brushless DC motors (BDCM) system,and which is implemented by a 0.35um CMOS process.A mixed-signal IC will be accomplished by the implementation of analog circuit and digital circuit in the same chip.Eventually,this chip system includes an analog circuit (Hall signal amplifier),a digital circuit (logic process block),and a frequency voltage converter (FVC) to complete the control & driving circuits.Experimental results are included to verify the proposed scheme.