http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
FPGA를 이용한 우주전파영상 합성용 디지털 상관기 개발에 관한 연구
염재환(Jaehwan Yeom),정구영(Gooyoung Jeong),노덕규(Dukgyoo Roh),오세진(Sejin Oh),김광동(Kwangdong Kim),이창훈(Changhoon Lee) 대한전자공학회 2006 대한전자공학회 학술대회 Vol.2006 No.11
In this paper, we propose a method of development of 2bit high speed digital correlator for integration of radio astronomical image by using FPGA.
비여자상의 역기전력 변화를 이용한 브러시리스 직류 전동기의 토크, 속도 및 전류 특성 검출
염재환(Jaehwan Yeom),김명규(Myunggyu Kim),장건희(Gunhee Jang) 대한기계학회 2005 대한기계학회 춘추학술대회 Vol.2005 No.5
This paper presents a method to detect the torque-speed-current characteristics of a brushless DC (BLDC) motor by using back-EMF variation of non-energized phase. It also develops a digital signal processor (DSP)-based BLDC motor controller to monitor current, voltage and speed of a BLDC motor in real time. Torquespeed-current characteristics of a BLDC motor are determined by using the proposed method and the developed controller experimentally. It is compared with the torque-speed-current characteristics measured by torque-meter. This research shows that the proposed method is an effective method to determine the torquespeed-current characteristics of the BLDC motor without using the torque-meter.