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What are peripheral effects of power electronics?
The operations of power electronic converters are mainly based on the switching of power semiconductor devices. Due to this the converters introduce voltage and current harmonics into the source as well as load. These harmonics can cause problems of distortion in the output voltage and current and also electromagnetic interference with the neighboring systems. To reduce these harmonics to an acceptable level it is necessary to introduce filters on the input and output of the converter. To evaluate the performance of the converter the quality of the waveform (voltage and current) needs to be measured using factors such as total harmonic distortion (THD), harmonic factor (HF) and input power factor (IPF). The implementation of proper control algorithm in the controller, generation of harmonics and distortion in the output waveform can be reduced. The switching of the power devices in power electronic converter can cause radio frequency interference due to electromagnetic radiation as a result gating circuits may generate erroneous control signals. This interference problem can be avoided by the use of grounded shielding.
Why normalization of message signal is necessary in conventional amplitude modulation?
to maintain the constant frequency and the phase parameters at the output
What system captures and processes detailed data necessary to update records about fundamental business operations of an organisation?
Transaction processing systems
What are the advantages and disadvantages of oscillators?
The biggest disadvantages with oscillators are that they have to be stabilized with control heaters. If the oscillator is operated in a non temperature controlled environment it will drift off frequency and it is not good policy to transmit over a wider that necessary bandwidth. The frequency on either side of the offending transmitter will be affected.
What is the best frequency range for headphones?
As low as possible to as high as possible, but don't go just by frequency response. Anything by Sony or sennheiser are normally good. A good unknown brand I found were Urbanz. Decent frequency response is generally anything from 20Hz and lower to 25KHz and higher. For example, 10Hz to 28kHz is decent. Some professional headphones (such as professional sennheisers) boast 3Hz to 50kHz, but unless you are a music producer this is rarely necessary. Hope this has helped :)
Why modulation is necessary?
modulation is necessary for transmitting low frequency signal to long range with desired qualitative information
What is fundamental synonym?
Basic, important, central, crucial, major, necessary, vital, or significant. Those a synonyms for fundamental.
What is a synonym for-fundamental?
Basic, important, central, crucial, major, necessary, vital, or significant. Those a synonyms for fundamental.
What is a more positive word for basic?
fundamental essential vital key necessary
What is another word for basic in science?
Necessary :)
Why is it necessary that health workers have a basic understanding of the fundamental principles of maintaining a healthy body (50—75 words)?
Why is it necessary that health workers have a basic understanding of the fundamental principles of maintaining a healthy body (50—75 words)?
Why are open-ended frequency distributions necessary?
to quickly and effectively represent data
What is another word for indispensable?
vital, necessary, crucial, needful, essential, basic, key, fundamental
Which pope said it was necessary to spread Christianity?
AnswerAll of the popes have made it a fundamental objective to spread Christianity.
Which of the following are criteria that define a transmission method as a spread spectrum technique?
The transmitting signal bandwidth is much wider than would normally be necessary to transmit the information Some influence other than the information being transmitted is used to determine the transmitting bandwidth
Which condition is necessary for a standing wave?
A standing wave is created by the interference of two waves with the same frequency and amplitude traveling in opposite directions along the same medium. The condition necessary for a standing wave to form is that the two waves have to have the same frequency and wavelength.
What are the three fundamental qualities necessary to make an object beautiful according to Thomas Aquinas?
Wholeness, balance, and radiance.
