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학술대회 High Performance of PMSM Driver IC Integrated Sensorless and Current Sensing Circuits
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오지민, 허세완, 김민기, 석정희, 양일석, 김종대
International Symposium on Power Semiconductor Devices and ICs (ISPSD) 2016, pp.251-254
15MB1900, 웨어러블 디바이스용 Form factor-free 다중입출력 전원모듈 기술 개발, 양일석
This work proposes high performance of permanent-magnet synchronous motor (PMSM) driver IC integrated with position sensorless scheme and current sensing circuits. The position sensorless scheme is adapted with digital sliding mode observer (SMO) method that has high robust characteristics of motor parameter variations. For current sensing circuits, 10-bit successive approximation (SAR) analog-to-digital converters (ADC) and various (1~16) gain amplifiers are implemented in the fabricated IC. The proposed PMSM driver IC is fabricated with 0.18um BCD process. Compared with the commercial module, with the accurate SMO scheme, a speed error is reduced to 0.7% at 3000rpm and a system efficiency is increased to 1.9 % at 3000rpm, 5N쨌m. The high precision position estimating driver IC is achieved without any position/current sensors.
Current Sensing, PMSM Driver IC, Sensorless
KSP 제안 키워드
Analog to digital converter(ADC), BCD process, High performance, Motor parameter, PMSM Driver IC, Permanent Magnet Synchronous Motor(PMSM), Position Sensorless, Sensing circuit, Sliding Mode Observer(SMO), Speed error, Successive Approximation(SA)