Adaptive Control of a Step-Up Full-Bridge DC-DC Converter for Variable Low Input Voltage Applications Elton Pepa Thesis submitted to the faculty of the Virginia Polytechnic Institute and State University in partial fulfillment of the requirements for the degree of Master of Science in Electrical Engineering Approved: ____________ok_________________ Dr. Jason Lai (Chair) ____________________ Dr. Krishnan Ramu ____________________ Dr. William T. Baumann February 6‚ 2004 Blacksburg
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and the vehicle is driven by high torque DC motors. To generate the control signals we have developed a DTMF Transmitter (Tx.)/ Receiver (Rx.) circuit. To generate DTMF signals we have used UM91214 DTMF generator which sends DTMF signals to the FM Tx. This FM Tx. in turn sends signals to FM Rx. Presently we have developed the system for a range of 1 km and tested up to 100 m‚ but it could easily be extended. At the receiving end we have standard FM Rx circuit which receives the DTMF and sends to DTMF
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and darkness changes its resistance is depends on the different types of LDR. ADVANTAGES Collection of parts of the circuit are easily available. Accuracy of this circuit is more than accuracy of other circuits. By using laser‚ it can be used for security purposes. It can be used to stop the wastage of electricity. The cost of circuit is low. This circuit saves the men’s power. USES It can be used in street lights. It can be used in mines areas. It can be used
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ABSTRACT The manual method of synchronization demands a skilled operator and the method is suitable for no load operation or normal frequency condition. under emergency condition such as lowering of frequency or synchronizing of large machines a very fast action is needed‚ which may not be possible for a human operator. Thus there is a need of autosynchroniser in a power station or in an industrial establishment where generator are employed. This paper describes a microprocessor based set
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Power Electronic Project DC/AC Conversion using an H-Bridge Supervisor: Dr. Lutfi Al-Sharif Students: Samer Alshaer 201010997 Ayman Herzalla 200910124 Ala al shargabi 201020177 Abstract—In this document a DC (Direct Current) to AC (Alternating Current) conversion method using an H-Bridge will be introduced; components‚ simulation and hardware implementation will be presented. Index Terms— H-Bridge‚ DC to AC conversion‚ Power electronic application‚ Simulation. I. INTRODUCTION A
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CLOSED CIRCUIT TELEVISION (CCTV) SECURITY CAMERA AS A TOOL FOR CRIME PREVENTION AND DETECTION IN SELECTED ESTABLISHMENTS IN DASMARIÑAS CITY‚ CAVITE An Undergraduate Thesis Presented to the Faculty of Eulogio “Amang” Rodriguez Institute of Science and Technology Cavite Campus In Partial Fulfillment of the Requirements for the Degree of Bachelor of Science in Criminology Submitted By: Bilog‚ Anjeanette P Deri‚ Lea V. De Vera‚ Melissa O. De Villa‚Lutgarda
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Circuit training is a workout routine that combines cardiovascular fitness and resistance training. Circuit training is an excellent way to simultaneously improve mobility‚ strength and stamina. The circuit training format is a method of physical conditioning in which one utilizes a group of 6 to 10 strength exercises that are completed one exercise after another. Each exercise is performed for a specified number of repetitions or for a prescribed time period before moving on to the next exercise
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Term Paper Report On “AUTOMATIC ACID BATTERY CHARGER CIRCUIT” Electronics and Communication Engineering Subject ELECTRONIC CIRCUITS Subject Code EEC 401 Subject Teacher Mr S.P. Verma Submitted by ATUL TRIVEDI BRANCH EC 42 ROLL NO
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Abstract : A DC power supply is very important in our day to day life. We use it to charge or operate our DC components like charger light‚ cell phone battery charger etc. It’s nothing but a AC to DC converter. Keywords: 5V DC power supply‚ rectifier‚ diode‚ filter‚ capacitor‚ zener diode‚ voltage regulator‚ signal‚ waveshape. 1. Introduction I’m designing a 5V DC power supply. Here I’m basically designing a AC to DC converter. To convert the AC to DC‚ I’m using components like full wave bridge
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D. C. Polarography * Introduction: - Polarography is a particular case of general electro analytical technique known as voltametry. These methods are used to study the decomposition and quantitative analysis of solution. Principle: - It is a rapid and accurate technique in which electrolysis of experimental solution is carried out by using one electrode of comparatively large surface area (i.e. non-polarisable electrode) and the other electrode having a very small area (polarisable electrode)
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