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...  Electricity is a useful secondary energy source – most energy sources (like coal, oil, nuclear, wind etc…) can be converted into electricity ...
Ch11_PPT_Fund_Elec_Circ_5e
Ch11_PPT_Fund_Elec_Circ_5e

... Adding a Capacitor II • With the same supplied voltage, the current draw is less by adding the capacitor. • Since power companies charge more for larger currents because it leads to larger power losses. • Overall, the power factor correction benefits the power company and the consumer. • By choosin ...
ELECTROMAGNETIC INDUCTION THEORY
ELECTROMAGNETIC INDUCTION THEORY

... With the coil and an ammeter in a closed circuit, a current (which is inversely proportional to the resistance of the coil) will flow. The magnetic field of the induced current will oppose the rate of change of the field that induces the current. For example, a mechanical action which changes a magn ...
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Finding the Temperature of a Light Bulb Filament

... circuit (or you’ll blow the fuse). Turn the dial to read “V” and insert the cords’ plugs into the “COM” and “V” receptacles. Then, connect the other ends of the cords to the circuit on either side of the resistor. (The voltmeter, then, is connected in parallel with the resistor). 4) Arrange the DMM ...
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© 2014 IEEE. Personal use of this material is permitted. Permission
© 2014 IEEE. Personal use of this material is permitted. Permission

... Phase Locked Loop (PLL) applied to the grid voltage (vgrid ). The PLL measures both the amplitude and the frequency of the electrical grid in order to trip the inverter if OUV/OUF condition arises. The reference current for injection purposes is compared to the measured one in order to generate the ...
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... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions is not implied. Exposure to absolu ...
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Using the phet simulation build the following circuits:
Using the phet simulation build the following circuits:

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... brightness to just the right level. The M-8D adds a bright red, three-digit LED meter that displays incoming voltage. The M-8 and M-10 are designed for applications where lights are not required. M-Series conditioners protect your delicate electronic equipment by combining high voltage varistor (MOV ...
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... Physics of operation Specification Special issues Devices of the same family Passive components in power electronic circuit Transformer, inductor, capacitor and resistor: these are passive components in a power electron ic circuit since they can not be controlled by control signal and their characte ...
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... temperature stable output. This unique arrangement specifically corrects for the loading of the divider, thus avoiding the error resulting from base current loading in conventional circuits. The patented amplifier controls a new and unique noninverting driver that drives the pass transistor, Q1. Thi ...
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... Ohm’s law is V = IR. The current I is directly proportional to the voltage V because the resistance R is constant in a circuit. So it is a linear graph going up as V increases. In the Coulomb’s law, the electrical force is inversely proportional to the square of the distance. So the graph is a curve ...
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... The 5V reference is divided down to 108mV for current measurements, giving a differential input range of ±54mV to match standard 50mV output current shunts with 4mV of over range capacity. For voltage monitoring applications, the 5V reference can be used directly and the input can be divided to acco ...
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... combined output of these multiple converters, the signal values are added up, but conversion errors cancel each other out, resulting in lower values than by simple addition. The ratio between the signal and conversion errors therefore increases significantly. Converter performance is improved in all ...
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... A conductor is a substance that carries electrical energy without much resistance. In other words, electrons move EASILY through a conductor and lose little energy. ? Copper is a good conductor There is a relationship between CURRENT and VOLTAGE DROP. It is called OHM’s LAW. OHM’s LAW The voltage dr ...
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Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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