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성원기 三陟大學校 2003 論文集 Vol.36 No.-
In this paper, a study of Norton's equivalent circuit using Pspice is described. This study is started with analyzing the circuits which is only comprised of resistances with independent sources and dependent sources. And then analyze the circuits which is comprised of resistances, inductors, and capacitors with alternating current sources. In this method, use the current source with 1 ampere to derive the equivalent impedance. Analyze theoretically and verify the results by use of simulation program, Pspice. Those results are coincident with each other.
성원기 三陟大學校 1995 論文集 Vol.28 No.1
A Algorithm of the exponential pattern control in the stepping motor is described. This Algorithm accelerate stepping motor by the exponential pattern. Also, This method decelerate stepping motor by the exponential pattern. In this method, the stepping motor is accelerated in self-driving region on frequency-torque characteristics and drived in slew region. Minimum period of ?? second expand speed-variation range. By experiment, the results is verified.
성원기 三陟大學校 1999 論文集 Vol.32 No.1
This paper presents the analysis of induction motor characteristic. The mathematical model of induction motor was transformed into Pspice modelling using Pspice parts. The simulation result of proposed model was shown that Wrpm is 1879[rpm]at 1.0406[sec], when the parameters of model were chosen by Vdos=220[V], 60Hz, θ=-90˚, and ?=20[V]. It is confirmed that the simulation result is identified with the operation characteristic of real induction motor. In addition, the simulation was carried out using various values of ? parameters to analyze the characteristic of induction motor. It is also proved that the proposed model was shown identical result with real induction motor.
단일 지수함수형패턴제어기에 의한 두대의 스테핑모터 제어에 관한 연구
성원기 三陟大學校 1995 論文集 Vol.28 No.1
The control of two's stepping motors by one's exponential pattern control system is described. This method enable to drive two's motors in maximum rating speed. Two's stepping motors are accelerated in self-driving region on frequency-torque characteristics by exponential pattern and drived in slew region. Also, motors are decelerate in slew region on frequency-torque characteristics by exponential pattern and stopped in self-driving region. Minimum period of 0.0005 second expand speed-variation range. This system enables us to do the independent position and velocity control more economically than the trapezoid wave control. By experiment, the results is verified.
성원기 三陟大學校 1998 論文集 Vol.31 No.1
This paper presents DC Motor modeling, which simulates various characteristics of DC Motor applied to speed control system, using Pspice. When several parameters of speed control system are varied, the effect of output and the optimal parameters can be analyzed and obtained throughout the Psice software analysis. In addition, it can be economic procedures compared with real system construction including hardware implementation. In this paper, the closed-loop speed control system is applied, the computer simulation using the Pspice is confirmed that the torque, current and ωrpm according to input are identical results comparing the theoretical analysis.
성원기 三陟大學校 産業科學技術硏究所 2002 産業科學技術硏究論文集 Vol.7 No.1
In this paper, a study of Thevenin's equivalent circuit using Pspice is described. This study is stared with analyzing the circuits which is only comprised is resistances with independent sources and dependent sources. And then analyze the circuits which is comprised of resistances, inductors, and capacitors with alternating current source. in this method use the current source with 1 ampere to derive the equivalent impedance. Analyze theoretically and verify the results by use of simulation program, Pspice. those result are coincident with each other.
Planar Magnetic 소자를 사용한 포워드 컨버터의 최적 설계
朴庚洙,成源基 三陟大學校 2000 論文集 Vol.33 No.1
This paper presented a design technique of the forward converter(30V, 5Vdc , 150W) using planar magnetic components is described. The application of planar magnetic components can solve the space problem which occurs when it is installed on PCB since planar transformer has low profile. In addition a lossless snubber circuit is added to reduce the device stress and to improve the system efficiency. The performance of designed system is verified by simulation and experiment by comparing the system using conventional magnetic components and the system using planar magnetic components.
성원기,임덕규,김중환 三陟大學校 1992 論文集 Vol.25 No.-
The trapezoid wave control system of multi-stepping motors is described. This system enable to drive multi-stepping motors in maximum rating speed. In this system, three's stepping motors are accelerated in self-driving region on frequeney-torque characteristics and drived in slew region. The specifications of three motors are different from one another. Minimun period of 0.001 second speed - variation range. Also, This control system enables us to do the independent position and velocity control more economically than the conventional control system. By experiment, the results is verified.
단일 지수함수형 패턴 제어기에 의한 스테핑 모터의 병렬제어
성원기,김영해 三陟大學校 1997 論文集 Vol.30 No.1
Parallel control of stepping motors by one's exponential pattern control system is described. In this system, two's stepping motors are accelerated in self-driving region on frequency-torque characteristics and two's motors in maximum rating speed. Maximum period of speed-variation range is 2×10-5[sec]. This system enables us to do the independent position and velocity control more economically than the trapezoid wave control system. By experiment, the results is verified.