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마이크로프로세서를 이용한 베터리 충전 제어기에 관한 연구
장인혁(I.H Jang),티와리 카필(K.P Tiwari),이성길(S.G Lee),김보현(B.H. Kim),최연옥(Y.O Choi),김동휘(D.H Kim),조금배(G.B. Cho) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.7
In general the simple structure of battery charging devices are consist of Transformer bridge rectifier, filter Capacitors. However, these structure's charging devices is degradation occurs in the inputs and the transient currents in power conversion devices, leads to distortion of the waveform is rectifiers and converters are composed of two structures, because the power conversion efficiency is also affected. Therefore, this paper shows Atmel, AVR RISC 8-bit micro-processor using the ATmega128 rated voltage and power factor control and the method chosen for the Fed PWM battery charger characteristics through theoretical analysis and experimental results are presented.
장인혁(I.H Jang),최우석(W.S Choi),김보현(B.H Kim),박정국(J.K Park),김용재(Y.J Kim),조금배(B.H Beak) 대한전기학회 2009 대한전기학회 학술대회 논문집 Vol.2009 No.4
본 논문에서는 스테핑모터의 정 · 역회전 시간에 따른 속도제어 구동드라이버를 제안하였다. 모터의 속도와 위치를 단순연산으로 처리하여 가격 절감 효과를 가지고 왔으며, 각상의 제어 펄스폭을 측정하여 구동드라이버의 특성을 분석하였다.
신승호(S.H. Shin),장인혁(I.H. Jang),김보현(B.H. Kim),박정국(Z.G. Piao),최연옥(Y.O. Choi),정병호(B.H. Jeong),조금배(G.B. Cho),백형래(H.L. Beak) 대한전기학회 2010 대한전기학회 학술대회 논문집 Vol.2010 No.4
DC-DC converter is DC power equipment. which function is convert voltage DC to low voltage DC. Such as the DC-DC converter device, all the signal chain devices to provide a stable power supply is to maintain stable operation and high efficiency is needed in order to control the switching. In order to advantage of this high-efficiency switching power supply it of SMPS (Switching Mode Power Supply), The DC-DC converter has high efficiency. In this paper, Atmel, produced ATmegal28 RISC 8-bit micro-processor using, DC-DC converter to select a default form Buck type Converter Through circuit design, theoretical analysis and experimental characteristics through the present study.