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circuits and current review
circuits and current review

... 2. What is actually flowing in a current carrying wire? 3. What is an ampere? 4. The resistance of a wire depends on what three factors? 5. Which has more resistance, a thick wire or a thin wire? 6. What is the unit of resistance? of power? 7. State the formula for Ohm’s law. 8. What is grounding, a ...
Primary lithium batteries LS 14250 LST 14250
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... Continuous current permitting 50% of the nominal capacity to be achieved at + 20°C with 2.0 V cut off. (Higher currents possible, consult Saft) (recommended) (for more severe conditions, consult Saft) ...
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... continues successful cooperation of Croatian and Slovakian scientists in organizing EDPE conferences. The EDPE 2013 conference through its technical program will provide a unique opportunity for the academic and industrial community to address new challenges, share experiences and discuss future res ...
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Analog-to-Digital Converter and Multivibrators
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... • Charge builds up on the left capacitor, “pullingup” the voltage presented to the base of the transistor on the right. • When the base reaches about 0.7v the transistor on the right turns on. • Current now starts to flow through the 1K resistor on the far right, thus dropping the voltage level at t ...
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... Drawn Arc Stud Welding up to 1000 Amps Welds full-base Studs from 1/4” (6mm) to 5/8” (16mm) Complete systems available with gun and cables Digital Start/Stop replaces mechanical Contactor Bright, easy to read digital display Extra-thick skids on the bottom of the case for protection Stepless 0.05 to ...
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Passive Bandpass and Notch Filters
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... rectangle with slits and two prongs in the box for your digital multimeter. – This slides into the two capacitance measurement slots on your digital multimeter. It helps create a better connection to the narrow wires of the capacitors. ...
Passive Bandpass and Notch Filters
Passive Bandpass and Notch Filters

... Hz) where the power is ½ of the maximum output power (the -3 dB point) is the bandwidth of the filter – Maximum power to output occurs at fo =QB, where Q is the quality factor of the filter. • A high Q filter has a small bandwidth, almost no other signals except for the one at the center frequency w ...
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... Consider the circuit you have drawn in Qu. 7. If one light globe was to go out in the circuit, what would be the effect on the other globe? ...
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... TDA7000 FM Radio IC Order code: TDA130 The TDA7000 is a monolithic integrated circuit for mono FM portable radios. The IC has an FLL (Frequency-Locked-Loop) system with an intermediate frequency of 70 kHz. The i.f. selectivity is obtained by active RC filters. The only function which needs alignment ...
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... Fully automatic 12 V charger with multicolour LED display This rugged charger is equipped with modern microprocessor controlled charging technology including test cycle to be used for a plenty range of applications. The oscillating pulse-charging allows to revitalize low batteries (desulphate modus) ...
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... These boost (step-up) voltage regulators generate higher output voltages from input voltages as low as 2.5 V. They are switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) and have a typical efficiency between 80% to 90%. The available output current is a fun ...
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Power electronics



Power electronics is the application of solid-state electronics to the control and conversion of electric power. It also refers to a subject of research in electronic and electrical engineering which deals with the design, control, computation and integration of nonlinear, time-varying energy-processing electronic systems with fast dynamics.The first high power electronic devices were mercury-arc valves. In modern systems the conversion is performed with semiconductor switching devices such as diodes, thyristors and transistors, pioneered by R. D. Middlebrook and others beginning in the 1950s. In contrast to electronic systems concerned with transmission and processing of signals and data, in power electronics substantial amounts of electrical energy are processed. An AC/DC converter (rectifier) is the most typical power electronics device found in many consumer electronic devices, e.g. television sets, personal computers, battery chargers, etc. The power range is typically from tens of watts to several hundred watts. In industry a common application is the variable speed drive (VSD) that is used to control an induction motor. The power range of VSDs start from a few hundred watts and end at tens of megawatts.The power conversion systems can be classified according to the type of the input and output power AC to DC (rectifier) DC to AC (inverter) DC to DC (DC-to-DC converter) AC to AC (AC-to-AC converter)
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