Lc filter, Electrical Engineering

Assignment Help:

LC Filter

To the load resistance RL the ripple factor is directly proportional in the inductor filter and inversely proportional to RL in the capacitor filter. Hence if these two filters are joint as LC filter or L section filter as displayed in figure the ripple factor will be independent of RL.

42_LC Filter.png

It will increase the time of conduction if the value of inductance is increased. At some vital value of inductance, one diode, either D1 or D2 will all the time conducting.

The output voltage can be expressed like below from Fourier series,

V0 = (2Vm / π) - 4Vm / 3 π cos2 ∞ t

Then the dc output voltage,

Vdc = 2Vm/ π

∴ Vr rms = Irms . Xc = √2 /3. Vdc. Xc /XL

The ripple factor

ϒ= Vr rms / Vdc = √2 /3.  Xc /XL

= √2 /3. 1/4 ∞2 CL

∴ Xc = 1 /2 ∞ C & XL 2 ∞ L


Related Discussions:- Lc filter

Advantages of software defined radio, Advantages of SDR 1. Easy to upgr...

Advantages of SDR 1. Easy to upgrade 2. Great flexibility. It can be dynamically updated with new software without any changes in hardware 3. Due to reduced number of har

Explain node-voltage and mesh-current analyses, Explain Node-voltage and me...

Explain Node-voltage and mesh-current analyses? The node-voltage and mesh-current methods, which complement each other, are well-ordered systematic methods of analysis for solv

What is synchronous data transfer, What is synchronous data transfer? I...

What is synchronous data transfer? It is a data method which is used when the I/O device and the microprocessor match in speed. To transfer a data to or from the device, the us

FET operation, ON output plot of a JFET n-channel transistor if ID is close...

ON output plot of a JFET n-channel transistor if ID is close to IDSS does the value of VGS close to VP?

Interrupt structure of the 8085 microprocessor, List the four instructions ...

List the four instructions which control the interrupt structure of the 8085 microprocessor. DI ( Disable Interrupts ) EI ( Enable Interrupts ) RIM ( Read Interrupt Masks

Ultrasonic Sensor Help for Seventh Grader, What are ultrasonic sensors made...

What are ultrasonic sensors made of? What is a good online source to find information on a basic level about ultrasonic sensors?

Thevenin equivalent circuit, The circuit below will be most efficiently ana...

The circuit below will be most efficiently analyzed by obtaining the Thevenin equivalent circuit for the circuit to the left of the points (a-b) on the schematic. The capacitor is

Application of microprocessors , Application of Microprocessors Microp...

Application of Microprocessors Microprocessor microcontroller based systems  may be used  in almost  every filed of life  and  their  applications  are increasing day by day

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