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lab_report - Homework Market
lab_report - Homework Market

Notes
Notes

Toch maar 3C … - lanciaaurelia3c.nl
Toch maar 3C … - lanciaaurelia3c.nl

... A capacitor was also necessary reducing contact points burning due to heavy amperage to be switched off. This is definitely also the difficult part for all electronically interrupted ignition coil systems all the same to whatever detecting device is used acknowledging although transistors being rath ...
Generation of high DC, AC, impulse voltages and currents
Generation of high DC, AC, impulse voltages and currents

Document
Document

... resistance in the conducting surfaces of the plates. Equivalent series resistance (ESR) is the term for this parasitic resistance. • Bleeder resistors are used to discharge stored energy in the filter capacitors when the power supply is turned off. You should wait long enough for the bleeder resisto ...
SWREGv1.1 Low Noise Switching Regulator  FEATURES
SWREGv1.1 Low Noise Switching Regulator FEATURES

... Connectors: Machine crimped two pin 1.25mm Molex pigtails with 12” wire lengths are available for sale from Procerus Technologies. These machine crimped pigtails are recommended for use as they are generally more reliable than hand crimped pigtails. Parts for used for making hand crimped pigtail con ...
Electric Fields - Rosshall Academy
Electric Fields - Rosshall Academy

Instruction of Installation of 0-30V Stabilized
Instruction of Installation of 0-30V Stabilized

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UMZ-T2-1042-A16-G 数据资料DataSheet下载

... Caution! ESD sensitive device. Exceeding any one or a combination of the Absolute Maximum Rating conditions may cause permanent damage to the device. Extended application of Absolute Maximum Rating conditions to the device may reduce device reliability. Specified typical performance or functional op ...
LA5744TP - ON Semiconductor
LA5744TP - ON Semiconductor

... This IC prevents the current from increasing when the outputs are shorted by setting the switching frequency to 30kHz if the VOS pin voltage falls below 0.8V. Note 3 : If the soft start function is not used, the IC will start up with the overcurrent protection function operating. At this time, the s ...
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Capacitors mini mock

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Isolated DC-DC converter - SMPS

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... The RMS value is the effective value of a varying voltage or current. It is the equivalent steady DC (constant) value which gives the same effect. For example a lamp connected to a 6V RMS AC supply will light with the same brightness when connected to a steady 6V DC supply. However, the lamp will be ...
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POWER ELECTRONICS NOTES 10ES45

... • The output load voltage has a DC component because the two halves of the output voltage waveform are not symmetrical with respect to ‘0’ level. The input supply current waveform also has a DC component (average value) which can result in the problem of core saturation of the input supply transform ...
File
File

... each hair a slight positive electrical charge. Why are only electrons removed from your hair? Because only e- are on the outside of the atom so they can be pulled. What would your hair look like after, why? Your hair would be all sticking up because all the charge would all be +. ...
ELEC 5705 RF Systems Design: Assignment #1
ELEC 5705 RF Systems Design: Assignment #1

... 3) Produce a plot of the output power of the IM3 products, and fundamental power versus input power for an input with two tones. Determine the 1dB compression point of the amplifier. ...
Center tap Full Wave Rectifier
Center tap Full Wave Rectifier

ELEC 5705 RF Systems Design: Assignment #1
ELEC 5705 RF Systems Design: Assignment #1

... 3) Produce a plot of the output power of the IM3 products, and fundamental power versus input power for an input with two tones. Determine the 1dB compression point of the amplifier. ...
A or Q - jick.net
A or Q - jick.net

SUBELEMENT T0 – Electrical and RF Safety – 3 exam questions – 3
SUBELEMENT T0 – Electrical and RF Safety – 3 exam questions – 3

... antenna orientation – 1 exam question T9B01 (C) Why are VHF/UHF signals not normally heard over long distances? A. They are too weak to go very far B. FCC regulations prohibit them from going more than 50 miles C. VHF and UHF signals are usually not reflected by the ...
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RC SNUBBERS (SMPS) - Illinois Capacitor

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Measurements on a Tube Radio
Measurements on a Tube Radio

... at a negative potential that depends on the magnitude of the received radio signal. If we connect the generator output of the CGR-101 to that point, the low internal resistance of the generator (150Ω) will shunt that voltage to ground. This is not particularly harmful, but just to be safe we put a 6 ...


... resistance  of  0.2Ω  per  phase  and  a  standstill  leakage  reactance  of  1Ω  per  phase.  When  the  stator is energized at rated voltage and frequency, the rotor induced emf at standstill is 120V  per phase. Calculate the rotor current and rotor power factor both at starting and full load.    ...
DOC
DOC

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Spark-gap transmitter



A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""
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