Capacitor filter, Electrical Engineering

Assignment Help:

Capacitor Filter:

329_Capacitor Filter.png

A capacitor filter is connected directly across the load is displayed in figure. The property of a capacitor is that it permits ac component and blocks dc (direct current) component. The operation of the capacitor filter is for short the ripple to ground but leave dc (direct current) to emerge at output when it is connected across the pulsating dc voltage.

Throughout the positive half cycle, the capacitor charges equal to the peak vale of the transformer secondary voltage, Vm and will try to keep this value since the full wave input drops to zero. Capacitor will discharge via RL slowly till the transformer secondary voltage again gets increases to a value greater as compared to the capacitor voltage. The diode conducts for a period that depends upon the capacitor voltage. The diode will conduct while the transformer secondary voltage becomes much more than the diode voltage. This is termed as cut in voltage. The diode stops conducting while the transformer voltage becomes less as compared to the diode voltage. This is known as cut out voltage.


Related Discussions:- Capacitor filter

Oscillator, how to design colpitts oscillator?

how to design colpitts oscillator?

Total harmonic distortion, The site 450 kVA load is actually a three-phase,...

The site 450 kVA load is actually a three-phase, six pulse thyristor rectifier feeding a dc bus. Assuming that the voltage waveform at the site 11 kV bus is purely sinusoidal, calc

Use delta-wye transformation for network reduction, Use delta-wye transform...

Use delta-wye transformation for network reduction and determine the current through the 12- resistor in the circuit of Figure(a).

What is the voltage controlled resistance region, Q. What is the Voltage co...

Q. What is the Voltage controlled resistance region?  In this region the JFET can actually be employed as a variable resistor whose resistance is controlled by the applied gate

Find the flux density in the air gap of the right leg, Q. In the magnetic c...

Q. In the magnetic circuit shown in Figure the center leg has the same cross-sectional area as each of the outer legs. The coil has 400 turns. The permeability of iron may

Demodulation of ssb signals, Demodulation of SSB signals also requires the ...

Demodulation of SSB signals also requires the use of a phase-coherent reference. Figure shows the general configuration to demodulate the SSBsignal.Asmall carrier component, which

Show step-motor control system, Q. Show Step-motor control system? Figu...

Q. Show Step-motor control system? Figure illustrates a system in which the prime mover used in the disk-drive system is a step motor driven by pulse commands. In response to e

Explain about differentiator, Q. Explain about Differentiator? Shown in...

Q. Explain about Differentiator? Shown in Figure is a differentiator which is obtained by replacing R1 in the inverting amplifier of Figure by a capacitor C. Assuming ideal op-

Dc machince, what ''s part of dcmotor or dc generator

what ''s part of dcmotor or dc generator

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd