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.In an AC-DC converter, a diode might be used as
Answer: c Explanation: In converters diodes are used to feed the energy back to the load in case of an inductive load.
Answer: c
See lessExplanation: In converters diodes are used to feed the energy back to the load in case of
an inductive load.
For a p-n junction diode, the peak inverse current & the reverse recovery time are dependent on
Answer: c Explanation: It only depends upon the number stored charges which depends upon the rate of change of current.
Answer: c
See lessExplanation: It only depends upon the number stored charges which depends upon the
rate of change of current.
Even after the forward current reduces to zero value, a practical diode continues to conduct in the reverse direction for a while due to the
Answer: c Explanation: Due to the stored charges during the earlier current flow, even when the current reduces to zero due to some structural properties of the device, the device takes time to sweep out the stored charges.
Answer: c
See lessExplanation: Due to the stored charges during the earlier current flow, even when the
current reduces to zero due to some structural properties of the device, the device takes
time to sweep out the stored charges.
The power loss in which of the following cases would be the maximum?
Answer: b Explanation: P=VI Hence, it would be maximum when both V and I are maximum
Answer: b
See lessExplanation: P=VI Hence, it would be maximum when both V and I are maximum
If V & I are the forward voltage & current respectively, then the power loss across the diode would be
Answer: d Explanation: Simply power (P) is voltage into current i.e. VI
Answer: d
See lessExplanation: Simply power (P) is voltage into current i.e. VI
A power diode with small softness factor (S-factor) has
Answer: b Explanation: Peak reverse current is independent of S-factor smaller the value of Sfactor larger the oscillatory over voltage.
Answer: b
See lessExplanation: Peak reverse current is independent of S-factor smaller the value of Sfactor larger the oscillatory over voltage.
The peak inverse current IP for a power diode is given by the expression
Answer: c Explanation: The leakage current is the reveres recovery time (t) into the rate of change of current.
Answer: c
See lessExplanation: The leakage current is the reveres recovery time (t) into the rate of change
of current.
.A diode is said to be reversed biased when the
Answer: a Explanation: K is positive w.r.t the A when the device is reversed biased.
Answer: a
See lessExplanation: K is positive w.r.t the A when the device is reversed biased.
.The V-I Characteristics of the diode lie in the
Answer: b Explanation: First in the forward region & Third in the reverse biased mode
Answer: b
See lessExplanation: First in the forward region & Third in the reverse biased mode
.The V-I Characteristics of the diode lie in the
Answer: b Explanation: First in the forward region & Third in the reverse biased mode.
Answer: b
See lessExplanation: First in the forward region & Third in the reverse biased mode.