• Journal of the Korea Society of Computer and Information
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• v.17 no.2
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• pp.87-94
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• 2012

Mechanical break system used in train, that mixed air break & electronic break system. this system suggest lots of ways for modify efficiency and solution of environmental problems due to recently intend to green growth. The mechanical break system has environmental & economical problem. Environmental sides(problem) are dust and noise etc and economical sides(problem) are replaced the spare parts that are breaking shoe and lining ect. For compensate those kind of weak points, we needs a wide territories of electronic break which is from high speed range to stop. This research is estimated the load torque due to an incline and stop the train method also check the characteristic of stop the train to estimate a torque follow the sharp drop.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.57 no.6
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• pp.1022-1025
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• 2008

This paper presents the generation of the high voltage squarewave pulse using distributed RLC circuit. The demonstrated test was performed with the distributed RLC circuit which consists of the resistance, the inductance and the capacitance. Pspice simulation was also conducted about the experiment circuit. The result of the experiment was in good agreement with the result of the simulation. Theoretical analysis of the initial peak value at the squraewave pulse was derived from the results of the experiment and simulation. Additionally, the characteristics of the time delay was analyzed about the spherical gap switch and the surface discharge gap switch, respectively. It is concluded that the surface discharge gap switch is better than the spherical gap switch to reduce the time delay.

• Proceedings of the KIPE Conference
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• 2010.07a
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• pp.222-223
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• 2010

TOP245P driver IC modeling technique are proposed for the LED Driver design. Analog behavioral model of TOP245P IC including the shunt regulator, under-voltage(UV) detection, over-voltage(OV) shut-down and SR flip-flop is developed by using PSPICE. The averaged-model and switching-model is applied to the LED driver simulation. The simulation results by the proposed TOP245P IC modeling technique are in good agreement with that in the data sheet and an experiment data.

• Journal of Aerospace System Engineering
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• v.12 no.6
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• pp.17-22
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• 2018

The amount of fuel, which affects aircraft endurance, needs to be measured accurately. This paper deals with the implementation of a fuel quantity measurement system that consists of capacitive fuel sensor, DAQ board, and Labview software. The main circuit of the implemented system for measuring fuel quantity is simulated with Pspice to identify parameters, which are related to the change of fuel quantity. After simulation, we established that Vrms changes with the variation of fuel amount. The Vrms, which is the output of fuel sensor, is transmitted to the Labview software via the DAQ board of the implemented fuel quantity measurement system. The fuel quantity is also calculated using this software. The present simulation results indicated that the accuracy of the implemented fuel quantity measurement system improved with the filter application.

• 제어로봇시스템학회:학술대회논문집
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• 2003.10a
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• pp.69-72
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• 2003

This paper presents a current-mode multiple-input minimum circuit. The proposed circuit can be implemented by applying De Morgan’s law. The circuit diagram is simple and modular. It operates using a single 2.5V supply and has very low dissipation. The realization method is suitable for fabrication using CMOS technology and all transistors are operated in their saturation region. The performances of this proposed circuit were studied using the PSPICE analog simulation program. The simulation results show the approval of this circuit that it has adequate basic performances for a real-time fuzzy controller and a fuzzy computer.

• 제어로봇시스템학회:학술대회논문집
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• 2003.10a
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• pp.73-77
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• 2003

This paper presents a high-speed algorithmic analog-to-digital converter (ADC), which is based on gray coding. The realization method makes use of a two-input maximum circuit to provide a high-speed operation and a low-distortion in the transfer characteristic. The proposed ADC based on the CMOS integrated circuit technique is simple and suitable for implementing a highresolution ADC. The performances of the proposed circuit were studied using the PSPICE analog simulation program. The simulation-results verifying the circuit performances are agreed with the expected values.

• Proceedings of the KIEE Conference
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• 2006.04b
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• pp.264-266
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• 2006

This paper presents a impedance model for the simulation of both static and dynamic characteristics of the electrodeless fulorescent lamp. A behavioral, PSpice compatible, model has been developed for the electrodeless fluorescent lamp. The model was tested at steady-state for different power levels, with an LCC modulated drive. and this model is established from some equations and measured electrical characteristics of EEFL. The validity of proposed lamp model is verified from the simulation and experimental results.

• Proceedings of the KIEE Conference
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• 1987.07b
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• pp.1499-1502
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• 1987

The control part of one-chip microcomputer has been designed with the 3um design rule for CMOS poly silicon gate and Its cells were layed out. The operation of the logic circuits were simulated with EDAS_P. The widths and lengths of circuit were determined by using PSPICE. The control part of microcomputer has designed by using hardwired methode. Results of logic simulation and circuit simulation are in good agreements with expected circuit characteristics.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1196-1198
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• 2005

This paper presents the realization of a four-terminal floating nullor (FTFN), which is simple configuration comprised three OTAs. The external bias currents of the OTAs can electronically adjust the current gain of the proposed FTFN. The realization method is suitable for implementation in monolithic integrated form. To demonstrate the circuit performances, the proposed FTFN was simulated by the use of the PSPICE analog simulation program and implemented using the commercially available OTAs. The simulation and experimental results verifying the performances of the proposed circuit are agreed with the theoretical values. Some application example in the design of the proposed FTFN as electronically tunable active element are also included.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.1192-1195
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• 2005

This paper presents the realization of a multiple-input maximum circuit, which is operated in a current-mode. The proposed circuit operates with bi-directional input current signal and employs 5n+4 transistors for n inputs. The realization method is suitable for fabrication using CMOS technology. The proposed circuit is useful building block for the real-time systems. The performances of the proposed bi-directional maximum circuit were studied using the PSPICE analog simulation program. The simulation results verified the circuit performances are agreed with the expected values.