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AC Link Chopper
This copper has two stage conversion. First DC is converted into AC by the use of inverter. The magnitude of AC voltage is varied by the transformer and it is converted back to dc using a rectifier.
figure AC link Chopper
Q. What is a positive clipper? Explain its action with the help of a circuit. A positive clipper is the circuit which is used to cut off the positive half cycle. The circuit wi
Give the applications of PVC. PVC- It is acquired from polymerisation of hydrogen chloride and acetylene in the presence of a catalyst as peroxides at about 50 0 C. It is e
application and demerits
A 10-kHz tone is used to frequency modulate a carrier; the peak deviation is 75 kHz. Use Carson''s rule to estimate the bandwidth.
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The French scientist, Ampere, (1775- 1836), conducted a series of experiments on the force between current carrying conductors. He found that: force per metre of wire (
A synchronous motor with a synchronous reactance of 12 ohms is operating with a current of 100 A at unity power factor supplying power to a large compressor. The phasor diagram for
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Explain Soft magnetic materials. Soft magnetic materials -They contain small enclosed area of hysteresis loop, high permeability low eddy current losses and high saturation
What is variable parameter in AC link chopper and what is the output parameter?
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