Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 127 for “"digital control"”.
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Digital Control of Levitation
… this problem have been to use a state feedback control system or a simple linear PID compensated control architecture. State feedback is a well-known control technique, but is complicated to implement and can rely on linearization of the system dynamics. The simple PID control structure is very …
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Direct digital control of D.C. machines
… thesis set out to improve on previous methods of digital control of a three phase fully controlled thyristor bridge, using phase control of the thyristors, and to use this bridge for the purpose of controlling the speed of a separately excited D. C. machine, under the supervision of a small …
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Digital control of gyroscope drift compsensation
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1961.
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Digital control of a stepping motor.
Massachusetts Institute of Technology. Dept. of Electrical Engineering. Thesis. 1967. M.S.
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Digital Control for Power Factor Correction
… the study, implementation and improvement of a digital controller for a power factor correction (PFC) converter. The development of the telecommunications industry and the Internet demands reliable, cost-effective and intelligent power. Nowadays, the telecommunication power systems have output …
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Direct Digital Control of Inertial Guidance Sensors
… with the theoretical design of rebalance control systems for inertial sensors using digital controllers. Specific attention is given to the case where a two-degree-of-freedom gyro is used as an attitude sensor in a strapdown inertial measurement system. Because of the similarity of the …
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Digital Control Techniques for Switching Power Converters
Digital control methods for switching power converters offer greater robustness, more flexibility to changing operating characteristics, and better system performance than conventional techniques, which are often model-limited and only work well in a small range of conditions. Digital controllers …
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Direct digital control of a synchronous machine
… is to investigate the possibilities of direct digital control of a thyristor converter and to determine the major parameters affecting the operation of a variable speed synchronous machine drive.
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Direct digital control of a D.C. machine
… bridge rectifier, enabling the computor to control its D.C. output voltage. By writing a suitable computor program, this system was extended to provide closed loop computor control of the speed of a D.C. machine. The first interface and computor program were so designed that the computer …
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An accurate audio oscillator utilizing digital control
Thesis: M.S., Massachusetts Institute of Technology, Department of Electrical Engineering, 1960
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Digital control of contactless battery charging system
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1995.
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High Performance Digital Control Techniques for Powering Microprocessors
… for processors today and in the future. Digital power control architectures in which processors closely interact with voltage regulators are becoming necessary to enhance system energy efficiency. Digital techniques offer advantages such as flexibility, fewer external components and …
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Digital control system programming from process control diagrams
A graphical process control language has been developed as a means of defining process control software. The user configures a block diagram describing the required control system, from a menu of functional blocks, using a graphics software system with graphics terminal. Additions may be made to …
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Digital control of an Encryptic broad-band radar application
This project describes the digital control of a radar that is ideally insensitive to alien disturbance signals. The key factor in this project comprises the design and realisation of a wide range of digital techniques combined into one digital controller consisting of several elements.The project …
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Digital control of an Encryptic broad-band radar application
This project describes the digital control of a radar that is ideally insensitive to alien disturbance signals. The key factor in this project comprises the design and realisation of a wide range of digital techniques combined into one digital controller consisting of several elements.The project …
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Digital Control Techniques for High Fidelity Haptic Simulation Systems
Haptic simulation systems allow human users to kinesthetically interact with virtual environment models through a robotic mechanism known as a haptic interface. The sampled-data nature of haptic interfaces limits the range of virtual environment dynamics that can be stably rendered in a haptic …
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Non-linear digital control of a McKibben muscle system
… better understand and improve the closed - loop control of these pneumatic muscles, a physical joint model was constructed with an agonist and an antagonist muscle operating under non-linear control. With the use of LabVIEW software, compliant McKibben air muscles and Flock-of-Birds sensor, the …
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Analog and digital control of an electronic throttle valve
Two electronic throttler controllers were designed and implemented for an automotive throttle valve on a four-cylinder, spark-ignition gasoline engine. The first controller was designed using operational amplifiers and other analog componentry to realize a proportional-integral controller and …
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Applied high resolution digital control for universal precision systems
… of a high-resolution analog interface for dSPACE digital control systems and a high-resolution, high-speed data acquisition and control system. These designs are intended to enable higher precision digital control than currently available. The dSPACE system was previously designed within the PMC …
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