WIRELESS CHARGING OF MOBILE USING MICROWAVES Abstract: In today’s modern era‚ mobile phones have become a basic need for people all over the world. The charging of mobile phone has become an arduous task. It is a hectic task to carry everywhere the charger of mobile phones or any electronic gadget while travelling or it is very cruel when your mobile phone getting off by the time you urgently need it. It is the major problem in today’s electronic gadgets. Though the world is leading
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chemistry is used in many ways in computers also.for example.‚we use many elements like silicon‚zinc‚aluminium‚copper etc.‚. in designing and in developing the hardware of computer. Electronics: Chemistry is important in many electronics fabrication and packaging methods and may one day help extend the trend toward faster and cheaper electronics by \molecular electronics‚" where individual molecules are used as electronic components. Chemists have always played a fundamental role in the
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Diodes a diode is a two-terminal electronic component with asymmetric conductance‚ it has low (ideally zero) resistance to current flow in one direction‚ and high (ideally infinite) resistance in the other. A semiconductor diode‚ the most common type today‚ is a crystalline piece of semiconductor material with a p–n junction connected to two electrical terminals. A vacuum tube diode has two electrodes‚ a plate (anode) and aheated cathode. Semiconductor diodes were
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Which ultimately indicates that the for small drain to source voltage‚ the bulk channel region acts as a constant resistor. The reason behind it is that‚ VDS being small‚ the depletion region width across the pn junction is so small that it doesn’t affect in any way the channel width and hence ID increases linearly with VDS. This ohmic relationship between VDS and ID continues till a critical voltage is reached named pinch-off voltage VPO after which drain current
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structures: structures under involuntary control (cardiac muscle‚ smooth muscle‚ glands) -Afferent: carrying impulse towards the CNS -Efferent: carrying impulse away from the CNS -CNS: the control center/headquarters‚ consists of brain and spinal cord -PNS (peripheral nervous system): cranial and spinal nerves‚ communication lines between the CNS and the rest of the body‚ broken down into 2 divisions: 1) sensory/afferent division- somatic and visceral sensory nerve fibers‚ conducts impulses from receptors
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system (CNS) Peripheral nervous system (PNS) The Central Nervous System (CNS) Consists of the spinal cord and brain Contains neural tissue‚ connective tissues‚ and blood vessels Functions of the CNS are to process and coordinate: Sensory data from inside and outside body Motor commands control activities of peripheral organs (e.g.‚ skeletal muscles) Higher functions of brain intelligence‚ memory‚ learning‚ emotion The Peripheral Nervous System (PNS) Includes all neural tissue outside the
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or the dopant element. On the contrary‚ too high temperatures cause lattice vibrations that interfere with the passage of charge carriers. At extremely high temperatures the junction of the doped semiconductor will lose its power to separate the charges‚ thus the charge carriers having so much energy start crossing the junction in both directions (n-type side to p-type side and vice versa) as if the barrier field were not there. This affects the activity of the cell and reduces its efficiency. Most
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Absorption loss 31 9.2 Light Scattering 32 9.3 Bending loss 33 10.0 Fiber 34 10.1 Multi Mode 34 10.2 Single Index 35 11.0 Optical Resources 36 11.1 LED 36 11.2 LASER 38 12.0 Optical Detectors 41 12.1 Photo Detectors 41 12.2 Photo Diodes 42 13.0 Limitations of Optical Fiber Technology 45 14.0 Application 45 CONCLUSION REFERENCES Acknowledgements First and foremost I offer my sincerest gratitude to my teachers who has supported me throughout my report‚ with his patience and
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excursions of a signal to a defined value by shifting its DC value. The clamper does not restrict the peak-to-peak excursion of the signal‚ it moves the whole signal up or down so as to place the peaks at the reference level. A diode clamp (a simple‚ common type) consists of a diode‚ which conducts electric current in only one direction and prevents the signal exceeding the reference value; and a capacitor which provides a DC offset from the stored charge. The capacitor forms a time constant with the resistor load
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5 • 1.4 Objective……………………………………………. 6 • 1.5 Scope ………………………………………………. 6 2. Section one……………………………………………………… 6 • 2.1 Diode Clipper Circuit………..………………………….. 6 • 2.2 Schematic Capture of Diode Clipper Circuit ………… 7 • 2.3 Circuit Simulation of Diode Clipper Circuit………….. 8 3. Section Two……………………………………………………… 13 • 3.1 Common-Emitter Circuit………………………………... 13 • 3.2 Schematic Capture and
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