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

Why depletion mosfet is known as normally-on mosfet, Q. Why depletion MOSFE...

Q. Why depletion MOSFET is known as "normally-on MOSFET" ? Draw the symbol of n-type and p-type depletion MOSFET. In depletion type MOSFET the drain current flows even when VGS

Explain signal description of 8085, Explain signal description of 8085 ...

Explain signal description of 8085 a) Address bus b) Control and status signal c)  Address latch enable d)  S1,S0 status signals e)  Read ,write signal

Explain bandwidth and applications of rc coupled amplifier, Q. Explain the ...

Q. Explain the bandwidth for the curve and the applications of an RC coupled amplifier. Frequency response curve of an RC coupled amplifier was shown above(prev page). The cut

What do you mean by companding, Q. What do you mean by Companding? Comp...

Q. What do you mean by Companding? Companding is the process of compressing and expanding. It comprises compressing the signal at the transmitter and expanding it at the receiv

Objectives of electricity and gas hazards, Objectives After studying th...

Objectives After studying this unit, you should be able to: 1. Describe the consequences of passing electric current through human body, 2. State and recognise the colour

For combined load calculate real power and reactive power, Q. A 6.6-kV line...

Q. A 6.6-kV line feeds two loads connected in parallel. Load A draws 100 kW at 0.6 lagging power factor, and load B absorbs 100 kVA at 0.8 lagging power factor. (a) For the comb

Various characterstics of a dc shunt generator. , Q.   Draw the various cha...

Q.   Draw the various characterstics of a DC shunt generator and explain critical resistance.   Sol.  Following are three most important characterstics or curves of a d.

Show the properties of a good heat sink, Properties of a good heat sink ...

Properties of a good heat sink For maximum efficiency, a heat sink should be 1)Be in good thermal contact with the transistor case 2)Have the largest surface area 3)Be

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