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180 articles for “control circuit”
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Gain Controlled Sinusoidal Oscillator Using Current Controlled Current Conveyors
Abstract: A gain-controlled sinusoidal oscillator circuit based on current-controlled current conveyors (CCCII) is introduced. The circuit contains three CCCIIs and two grounded capacitors and no resistor. The amplitude of the output current can be controlled electronically. Hence, the proposed topology is suitable for IC implementation. The CCCII has been implemented using 0.35 μm CMOS technology and the PSPICE simulation results are given.
Published in Journal of VLSI Design Tools and Technology · Vol. 1, Issue 1-2-3, 2011 · pp. 26–30 Read article
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Design and Simulation of Maximum Power Point Tracking Solar Battery Charge Controller
Abstract: As solar energy is a renewable energy that has the capacity to lessen energy crisis in the world, so there is a strong need to harvest and utilize this energy. This paper describes the simulation of a solar energy based MPPT battery charger controller and a protection system will also be integrated with the design. The proposed design uses PID controller based voltage and current controller for battery charging circuit. …
Published in Trends in Electrical Engineering · Vol. 7, Issue 2, 2017 · pp. 11–20 Read article
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Modeling and Control of A Grid Connected Wind Turbine Power System Under Variable Wind Speeds Using Doubly-Fed Induction Machine
Abstract: This paper focuses on the development of wind turbine system and extracting maximum power for variable speed constant frequency grid connected wind turbine power system with doubly fed induction generator. A voltage oriented control scheme is used for the control of both rotor side and grid side circuit. Pitch control mechanism is implemented for the power limitation at a wind speed greater than the rated speed. The DFIM stator side …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 3, 2015 · pp. 108–124 Read article
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Performance Evaluation and Operation of DSP Control UPS System
Abstract: An uninterruptible power supply (UPS) is a power controller that gives emergency electricity to a load when the mains energy fails. In on-line UPS, the load is always connected to the inverter though the UPS static switch. Specialized expertise is required for collection, analysis, and dissemination of technical information relating to high quality uninterruptible power systems. Inherent in these responsibilities is the coordination of technical and contractual matters relating to …
Published in Trends in Electrical Engineering · Vol. 8, Issue 1, 2018 · pp. 1–13 Read article
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Cold Light Source for Endoscopy using AVR Microcontroller
Abstract: An endoscopy involves the procedure of examining internal organs of the human body using endoscope. Presently, during endoscopy halogentype or xenon type light sources are used. The main drawback of these sources is the heat dissipated by them effects the sensor data. Due to high temperature in the surrounding environment, the video tube or optical fiber used to transfer data may be damaged. Moreover if the lamp turns off during …
Published in Journal of Control & Instrumentation · Vol. 5, Issue 1, 2014 · pp. 5–10 Read article
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Hardware Optimization of FPGA for I2C Master Protocol and Interfacing with EEPROM Slave
Abstract: This paper focuses on I2C (Inter Integrated Circuit) protocol master controller. I2C protocol was originally given by Philips semiconductors so that faster devices can communicate with slower devices and also allow devices to communicate with each other over serial bus without data loss. The I2C controller provides support for a communication link between integrated circuits and memory units on a board. I2C is a bidirectional serial bus which contains two …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 2, 2015 · pp. 42–48 Read article
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A Modular Three Phase AC Voltage Controller for Induction Motor
Abstract: AbstractThree phase induction motor (IM) is widely used in the industries because of rugged construction. User needs to control speed of the motor depending on the desired speed and application. In this paper launching of speed control of 3-phase IM is controlled by 3-phase AC voltage controller by varying the voltage by pulsewidth modulation (PWM) technique. In olden days speed control was possible for DC motors only, but with the …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 3, 2013 · pp. 1–5 Read article
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Study and Implementation of I2C Bus Controller using Verilog HDL
Abstract: AbstractInter Integrated Circuit is a Philips semiconductor. This bus is a two-wire, low to medium speed, correspondence transport created by Philips Semi-conductors. It gives capable chip to chip correspondence. I2C is found in for the most part specialized devices. Two bus lines are required SDA and SCL (serial information and serial clock line) both should be pulled up with a resistor to +Vdd. Serial, 8-bit arranged, bidirectional information exchanges can …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 1, 2017 · pp. 29–33 Read article
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LabView Based Control System Design for Water Tank Heater System
Abstract: This paper presents the control system design for water tank heater system (WTHS) with the help of LabVIEW and Arduino UNO R3 based Atmega328 microcontroller to regulate the temperature of water inside the water tank heater system to a certain reference value. In the process control system, the accurate measurement of the temperature is not an easy task. The aim of this work is to develop a low-cost and flexible …
Published in Trends in Electrical Engineering · Vol. 7, Issue 3, 2017 · pp. 31–40 Read article
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Design of Digital Frequency Sensitive Phase Detector and study its Phase Response
Abstract: In this paper, a digital frequency sensitive phase detector (PD) with voltage controlled phase response is presented. This scheme is based on classical type flip-flop phase detectors and an improved PD operating on both edges of the input sequence. Phase-to-voltage response characteristic control is accomplished by the additional feedback of the low-pass filter output voltage to reset the control pin input. In this paper, we have presented a simulated frequency …
Published in Journal of Microwave Engineering and Technologies · Vol. 8, Issue 3, 2021 · pp. 43–51 Read article
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Exploring the Effectiveness of IoT in Virtual Doctor Robot Systems
Abstract: The design and development of a Virtual Doctor Robot (VDR) using Internet of Things technology is presented in this study with the goal of facilitating remote medical assistance. In light of the constraints associated with physical presence, especially in underprivileged areas like isolated parts of India during the COVID-19 pandemic, videoconferencing (VDR) is a viable means of bridging the gap between patients and physicians. The VDR makes accurate diagnostic and …
Published in Journal of Instrumentation Technology & Innovations · Vol. 14, Issue 3, 2024 · pp. 13–23 Read article
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Design and Development of an Electromagnetic Propulsion Train
Abstract: The recent advancement of new transportation techniques led to the search for methods of propulsion that were superior to classical mechanical systems. Among these new moments, electromagnetic propulsion (EMP) has attracted attention because this technique allows for motion generation via electromagnetic force without using conventional wheel-based friction processing. The paper describes the conceptual design, principle of working and performance evaluation of a prototype model train to be propelled electromagnetically.The system, …
Published in Trends in Mechanical Engineering & Technology · Vol. 15, Issue 3, 2025 · pp. 19–24 Read article
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Design and Simulation of Speed Control of DC Motor and DC Voltage Control of Two Quadrant Chopper
Abstract: The DC motors are most suitable for wide range speed control and hence it is used in many adjustable speed drives. The DC motors are generally fed by chopper circuit for improved performance. In order to get smooth and precise control over the speed of DC motor, many different types of controllers have already been introduced. In this paper, two discrete-time multi-input and multi-output optimal controllers, one for control of …
Published in Trends in Electrical Engineering · Vol. 4, Issue 3, 2014 · pp. 26–34 Read article
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Assessment of Milk Quality Optimization of Yogurt Fermentation
Abstract: In the creation of new products, yogurt makers need to prioritize consumer preferences to enhance their market share. An advanced prediction method will help in grasping the fundamental connection between consumer preferences and sensory attributes. This study introduces a new deep learning approach that employs an autoencoder to derive product features from expert-scored sensory attributes. These sensory features are then analyzed through support vector machine regression to align them with …
Published in Research and Reviews : Journal of Dairy Science and Technology · Vol. 13, Issue 2, 2024 · pp. 6–12 Read article
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The Electromagnetic Transients in Mixed Power Networks with Partial Undergrounding
Abstract: This paper deals with the electromagnetic transients in partially undergrounded mixed high voltage power networks. These networks can include several cable sections replacing parts of the overhead transmission lines. The analysis yields the transient voltage and current distributions along the normal and the partially undergrounded lines. Moreover, the results can indicate eventually existing localized voltage and current concentrations within the network. The study suggests an exact direct analytical distributed parameter …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 1–13 Read article
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Power Factor Correction Using Parallel Boost Converter
Abstract: Power factor, the ratio between the active or average power and the apparent power forms a very essential parameter of the power system. It is indicative of how effectively the active power of the system has been utilized. With rapid development in power semiconductor devices, the usage of power electronic systems has expanded to a new and wide application range that include residential, commercial, aerospace and many others. Power electronic …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 71–88 Read article
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Solar Charge Controllers and their Implementation
Abstract: AbstractSolar energy is the incident energy from the Sun. The main components of this energy are incident light energy and the heat contained in it. The extraction of solar energy may be active or passive. Due to abundance and availability, solar energy is the most attractive alternate in available renewable resources. In the 21st century solar energy is expected to become increasingly attractive as a renewable energy source because of …
Published in Journal of Microcontroller Engineering and Applications · Vol. 7, Issue 1, 2020 · pp. 12–15 Read article
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A Differentiator Based on Second Generation Current Controlled Conveyor
Abstract: A new second generation current controlled conveyor (CCCII) with programmable gain at output terminal ‘Z’ is presented in this paper. The inherent advantages of the proposed circuits are low supply voltage requirement of ±0.85 V, small input parasitic resistance in the range of 29.12 Ω–297.71 Ω for a current range of 10 µA–300 µA, low power dissipation of 79.39 µw and low DC current error of 0.068%. The proposed CCCII …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 89–95 Read article
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The Future of Domestic Convenience: An In-depth Review of IoT-enabled Smart Home Technologies
Abstract: This paper explores a design for a smartphone-controlled smart home automation circuit built around the ESP8266 microcontroller. The ESP8266, known for its Wi-Fi connectivity, is the heart of the circuit, enabling communication with a cloud platform and receiving user commands from a mobile application. Based on user commands received through the app, the ESP8266 triggers relays to control appliances like lights and fans. This design offers a cost-effective and customizable …
Published in Trends in Electrical Engineering · Vol. 14, Issue 2, 2024 · pp. 39–50 Read article
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Simulation and Analysis of Three Phase VSI using THIPWM and SVPWM Techniques
Abstract: AbstractPWM methods is the most active topic for controlling the power electronic circuit. Several PWM approaches are more and more applied in various innovative applications of power electronics in industries that need greater performance of the system. These days the most relevant PWM method for 3 - phase VSI are SPWM, THIPWM and SVPWM. Out of these three methods SPWM is one of the naivest modulation schemes that can gather …
Published in Journal of Instrumentation Technology & Innovations · Vol. 9, Issue 3, 2019 · pp. 16–30 Read article