Charging of the capacitor, Electrical Engineering

Charging of the capacitor:

Considering the below diagram, with slight approximation the ripple voltage can be supposed as triangular. To the cut-out point from the cut-in point, whatever charge the capacitor achieves is equivalent to the charge the capacitor has lost during the period of non-conduction, that is, from cut-out point to the next cut-in point.

The charge it has acquired 1888_Charging of the capacitor1.png

The charge it has lost 1266_Charging of the capacitor2.png

 

2305_Charging of the capacitor.png

Vr p-p * C = Idc *T2

It can be supposed that the time T2 is equal to half the periodic time of the waveform if the capacitor's value is fairly large, or the value of the load resistance is extremely large.

T2=T/2 = 1/2f

Then

Vr p-p =Idc / 2fC

From the above statements, the ripple waveform will be triangular and its rms value is described by

Vr rms =Vr p-p/ 2 √3

Vr rms = Id.c. = 4√3 f C

= V d.c. /4√3 f C RL   

Id.c. = Vd.c. / RL

Ripple, ϒ = Vr rms / Vd.c. = 1/4√3 f C RL  

Id.c. = Vd.c. / RL

The ripple might be decreased via increasing C or RL (both) with a resultant increase in the dc Output voltage.

Posted Date: 1/11/2013 4:34:53 AM | Location : United States







Related Discussions:- Charging of the capacitor, Assignment Help, Ask Question on Charging of the capacitor, Get Answer, Expert's Help, Charging of the capacitor Discussions

Write discussion on Charging of the capacitor
Your posts are moderated
Related Questions
what is the advantage and disadvantage of back to back test of transformer

Q. What are transmission bridges? How do they assist in satisfying the connectivity?  Ans: A typical transmission bridge is demonstrated in figure. Series capacitance and shunt

1.    A 230/1000V 50 Hz, single phase transformer has the following test data: Open circuit test (L.V.) Primary voltage = 230V Primary current = 1.30 A Input power

what are the grond clearance for 220KV overhead transmission lines?

Q. Write a note on emitter follower? The emitter follower (EF) configuration is shown The emitter follower (EF) configuration is shown The EF amp has a voltag

Q. (a) Consider the amplifier block in the circuit configuration of Figure. Find an expression for v 2 /v 1 in terms of R i , R o , and A of the amplifier. (b) Determine the

HLT Halt Instruction The microprocessor halts  the execution  of the  program and enters into  the wait  state  the address  and data bus are placed in the  high  impedance st

1. Find the current through each component, in polar form, using mesh analysis. The source voltages are rms with an angle of 0 degrees. 2. Find the current t


a. Determine the power flow diagram for a DC generator. b. A shunt wound DC generator delivers 496 A at 440 V to a load. The resistance of  the shunt field coil is 110? and that