Question 2 a) Rotary Variable Differential Transformer (RVDT) Construction of RVDT RVDT is almost identical in the construction with LVDT. The ferrite core in LVDT is replaced by heart or cardioids shaped core. This rotational movement of the shaft creates the imbalance in the external circuit and this imbalance signal is used to measure the angular displacement of the shaft. RVDT give linear output up to displacement of +-40 degree. Then output starts becoming nonlinear. Operation of
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Electricity‚ being referred to as one of the primary agents of technological progress (Boylestad‚ 2002)‚ plays a vital role in securing the stability and mobility of the modern civilization in which many societies exist. Through simple observation‚ one can clearly say that electricity‚ indeed‚ lies through almost every aspect of human life in the present-day era‚ and that it has‚ in many levels‚ constantly revolutionized the way things are in the world as people know it. According to World Bank‚
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DEVELOPMENT OF AN INDUCTION COOKER. J. Schedel‚ I. Khan( and E Uken( Naval Engineering Services‚ Cape Technikon( ABSTRACT This paper entails the development of an industrial induction cooker. The induction cookers output power is to be controllable over the full desired operating range. The cooker is also to function with all ferrous vessels. The cooker consists of three main components‚ namely the load‚ the inverter stage and the control stage. This paper also briefly discusses the
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Experiment No: 2 Open circuit and short circuit tests on single phase transformer 1 Aim • To understand the basic working principle of a transformer. • To obtain the equivalent circuit parameters from OC and SC tests‚ and to estimate efficiency & regulation at various loads. 2 Theory The physical basis of the transformer is mutual induction between two circuits linked by a common magnetic field. Transformer is required to pass electrical energy from one circuit to another‚ via the medium
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A Report Summer Internship-2013 (June 23‚ 2013- July 22‚ 2013) Topic: Study of machining & repairing of electrical motors‚ transformers‚ generators & other machines Submitted by: Amarjeet Kumar EEE/10/23 ACKNOWLEDGEMENT I am thankful to the NIT‚ Arunachal Pradesh to give
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Transformer What is a Transformer? A transformer is made from two coils‚ one on each side of a soft iron core. It can decrease the voltage (called a step down transformer). or increase the voltage (called a step up transformer‚ shown below). Alternating current is passed through the primary coil (the input) which creates a changing magnetic field in the iron core. The changing magnetic field then induces alternating current of the same frequency in the secondary coil (the output).
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Self-induction To understand tuned circuits‚ we first have to understand the phenomenon of self-induction. And to understand this‚ we need to know about induction.The first discovery about the interaction between electric current and magnetism was the realization that an electric current created a magnetic field around the conductor. It was then discovered that this effect could be enhanced greatly by winding the conductor into a coil. The effect proved to be two-way: If a conductor‚ maybe in the
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Power Supply Regulation DC-DC voltage converters are often used to provide a regulated voltage supply from an unregulated voltage source. Unregulated voltage sources can be rectified line voltages that exhibit fluctuations due to changes in magnitude. Regulated voltage supplies provide an average DC output voltage at a desired level (3.3 V‚ 2.5 V‚ etc.)‚ despite fluctuating input voltage sources and variable output loads. Factors to consider when deciding on a regulated voltage supply solution include:
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chargers What does our inductor provide for P.Charger? Inductor is mainly found in the output design for Portable Charger‚ however we are trying to promote our inductor to be used in the input IC charger as well. With the usage of the inductor in input‚ charging time of the battery can be improved. Our inductor is also able to sustain the magnetic field from the current flowing through providing extra energy capacity and stability in current discharge. Usage for inductor in P.Charger - Based on
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Application Report SLVA477A – December 2011 – Revised August 2012 Basic Calculation of a Buck Converter’s Power Stage Brigitte Hauke ....................................................................................... Low Power DC/DC Applications ABSTRACT This application report gives the formulas to calculate the power stage of a buck converter built with an integrated circuit having a integrated switch and operating in continuous conduction mode. It is not intended to give details on the
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