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Why diode should be connected in anti-parallel with thyristor in inverter circuit?
A diode is connected in anti-parallel with a thyristor in an inverter circuit to provide a path for reverse current during the thyristor's off state. This configuration allows the diode to conduct when the voltage across the thyristor becomes negative, ensuring safe operation and preventing damage to the thyristor. Additionally, it helps in managing the switching characteristics and improves the overall reliability of the inverter circuit.
Define thyristor controlled braking resistor?
A braking resistor is used in motion systems where a motor in controlled by a drive. Typically, these are high-speed servomotors controlled by a servodrive. When accelerating, electrical energy is converted to a mechanical force to move a mass. When decelerating, that kinetic energy is converted (via the motor) back into electrical energy, and must go somewhere. To brake quick enough, the energy must be dumped into a power resistor, to be dissipated as heat. A thyristor (also known as a silicon-controlled rectifier or SCR) is a diode which has a gate terminal on it. Current at the gate allows the thyristor to go into a conducting mode, allowing current to pass. Modern drives will detect when their DC bus voltage reaches a certain threshold (from the energy being returned from the motor during braking) and begin triggering the thyristor periodically (typically PWM, pulse-width modulation) to disperse this energy as heat. See links.
What are the non-genetic causes of microcephaly?
Other possible causes of microcephaly include infections during pregnancy (rubella, cytomegalovirus, toxoplasmosis), adverse effects of medication, and the excessive use of alcohol by the mother during pregnancy
What causes the oxide scale on metal during heat treatment or annealing?
chemical reaction between the oygen atoms and the carbon atoms
If you have finished working with a data file but intend to work on it again during your work session which button would you use to close the window temporarily?
C. you have to minimize it
What were working conditions for factory workers during the the Civil War?
Working conditions during the Civil War were harsh. People worked long hours and were paid very low wages. There were strikes during this time by workers to improve the working conditions.
How did workers improve working conditions during the Industrial Revolution?
As the workers realized their rights and stated to revolt, the working conditions started to improve.
Why diode should be connected in anti-parallel with thyristor in inverter circuit?
A diode is connected in anti-parallel with a thyristor in an inverter circuit to provide a path for reverse current during the thyristor's off state. This configuration allows the diode to conduct when the voltage across the thyristor becomes negative, ensuring safe operation and preventing damage to the thyristor. Additionally, it helps in managing the switching characteristics and improves the overall reliability of the inverter circuit.
How did Henry Ford change working conditions during the 1902s?
he died
Who bettered both the living and working conditions of the working classes during the Industrial Revolution?
Trade unions.
What was wrong with the working conditions for children during the Victorian times?
it was broken in 1851
A conclusion about the working conditions during the industrial revolutions?
the conclusion was how they were treated &how they acted.
Which novel detailed working conditions in the meatpacking industry during the Progressive Era?
The Jungle, by Upton Sinclair, was about working conditions in the meatpacking industry.
What did labor unions change during the great depression?
Working conditions and unpaid wages.
Which class not only grew during the Industrial Revolution but also suffered because of poor working and living conditions?
The working class
What president improved the working conditions during 1930s?
I think you are refering to Franklin Delano Roosevelt.j3h.
How does sport relief help children with no human rights?
Working conditions during the apartheid era
