• 제어로봇시스템학회:학술대회논문집
• /
• 1992.10a
• /
• pp.999-1003
• /
• 1992

In the paper, a hybrid control approach for the swing-up control of a rotary type inverted pendulum is treated using one-chip microcomputer. The control approach is composed by a scheduling logic control for swing up control and the linear state feedback control to achieve the disired inverted-state of the pendulum. The experimental cystem has been implemented by a 16-bit one-chip microcomputer with 3096 opu as the digital controller incorporating the above mentioned control approach.

• The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers
• /
• v.3 no.2
• /
• pp.63-68
• /
• 1989

This paper discussed the Multi-PAM inverter for static power supply design. The controller part composed of one-chip microcomputer obtained control pattern simply. The configuration of termination part was composed of double bridge inverter and three-phase, three-winding transformer. The output waveforms using a controller and transformers synthesized the multi-PAM wave form by a voltage level of 22 steps per one-cycle. The output waveforms using the Low Pass Filter approximated to the sine wave.

• Proceedings of the Korean Society for Bio-Environment Control Conference
• /
• 1993.05a
• /
• pp.11-11
• /
• 1993

농업 생산시설의 환경제어장치를 one chip microcomputer를 사용하여 설계, 제작하였으며 실시간 복합 제어 기능을 수행할 수 있는 운영 프로그램을 개발하였다. 제어 장치의 microcomputer 는 6 개의 analog input 선을 포함하여 45 개의 입.출력선을 가진 8 bit microcomputer chip을 사용하였다. 농업환경인 온도, 습도, 조도는 센서를 직접 접속하여 계측 할 수 있도록 계측 module을 포함시켰다. (중략)

• The Transactions of the Korean Institute of Electrical Engineers
• /
• v.40 no.2
• /
• pp.162-172
• /
• 1991

In proportion to the capacity enlargement of the induction motor system controlled by current source inverter, the capacitance of the commutating capacitor is enlarged and then the spike value of output voltage is increased at the moment of charge and discharge. Moreover, the output currnet includes a number of harmonic components. Such voltage spike and harmonics generate the torque ripple and lead to bad effects on the performance of the induction motor. In this study, all the harmonics excluding 17th and 19th harmonics were mostly elimunated by adopting 18-phase Triple High Frequency Current Source Inverter(HFCSI), and the spike component of output voltage was reduced by adding the Voltage Clamping Circuit(VCC). As a result, the torque ripple and the commutation loss were reduced and the performance of the system was improved. Experiments for speed control were carried out in the tripple current source inverter system for induction motor drive. Overall system was controlled by ONE CHIP MICROCOMPUTER(INTEL 8751). Control circuits were simplified and good experimental results in the constant V/F control were obtained due to the flexibility of the microcomputer.

• 전기의세계
• /
• v.31 no.10
• /
• pp.710-718
• /
• 1982

마이크로 프로세서 구조를 설명하고 대표적인 8bit microprocessor로서 Intel의 8085를 다룬다. 또한 Microcomputer System으로 쓸 수 있는 One-Chip-Processor를 토의한다.

• 전기의세계
• /
• v.31 no.10
• /
• pp.719-727
• /
• 1982

마이크로 프로세서 구조를 설명하고 대표적인 8 bit microprocessor로서 Intel의 8085를 다룬다. 또한 Microcomputer System으로 쓸 수 있는 One-Chip-Processor를 토의한다.

• Current Research on Agriculture and Life Sciences
• /
• v.8
• /
• pp.107-113
• /
• 1990

This study was attempted to develop a remote controllable speed sprayer in order to protect an operator from agricultural chemicals. For the purpose of remote controllable transmission was developed by using one chip microcomputer. The following results could be summarized in this study. 1. Remote controllable transmission developed had not made even a single mistake during the test performed 100 times repeat. Thus, it could that this machine was very accurate. 2. One chip microcomputer was made by machine language and its was with in 3 sec's which was the same as human did. 3. One chip microcomputer which was used in the experiment could be widely used to automation of agricultural machinery, since it is smaller and chiper than any other similar ones such as personal computer, lap tap, one board computer. 4. Since, farm tractor has the same type of transmission as this system, it also could be adapted to farm tractors. 5. In this experiment, transmission lever was remote controll were designed to operate simultaneously. Thus, this system developed was more complicate than conventional system. However, by removing this transmission lever and by mounting the remote controll system at the speed sprayer, it would be higher and easier to handle than the conventional one.

• Proceedings of the KIEE Conference
• /
• 1985.07a
• /
• pp.282-283
• /
• 1985

• Proceedings of the IEEK Conference
• /
• 2000.06e
• /
• pp.222-224
• /
• 2000

This Paper investigates the speed control of Switched reluctance motor(SRM) using one chip microcomputer The SRM has the advantages of simple structure low rotor inertia. and high efficiency. The Position sensor is essential in SRM in order to synchronize the Phase excitation to the rotor position. The proposed system consists of phase locked loop controller, switching angle controller and inverter. The Performances in the Proposed system are verified through the experiment.

• Journal of the Korean Chemical Society
• /
• v.40 no.5
• /
• pp.333-340
• /
• 1996