Dc charging and discharging circuit, Electrical Engineering

Assignment Help:

The circuit shown below is a DC charging and discharging circuit.

1743_DC charging and discharging circuit.png

a.  At t = 0 sec, switch S1 is thrown to position 1 ("pos1"). Write the mathematical expressions for and .

b.  Find VC at t = 15 msec ("millisec") and at t = 30 msec.

c.  Find IC at t = 0 msec and at t = 30 msec.

d.  Find the time, t, in msec, that it will take for the capacitor to charge up to VC = 3 Volts.

e.  After t = 30 msec, the switch S1 is thrown into position 2 ("pos2"), as shown in the schematic below. Find VC when the switch is thrown to position 2, and find the current IC at the same instant.

f.  Write the mathematical expressions for  and  for the time from the throwing of switch S1 to position 2 ("pos2").

g. Find VC at t = 20 msec after S1 goes to pos2.

h. Find VC and IC at t = 8 msec after S1 goes to pos2.

i. How long does it take VC to fall to 3 Volts.

1060_DC charging and discharging circuit1.png


Related Discussions:- Dc charging and discharging circuit

Explain the transfer characteristics, Q. Explain the transfer characteristi...

Q. Explain the transfer characteristics in a few words ? The transfer characteristics are a plot of an output (or a drain) current versus an input controlling quantity. There i

Distribution transformers, Distribution Transformers 1. Augmentation/...

Distribution Transformers 1. Augmentation/Addition of Distribution Transformers Distribution transformers have to be augmented by installing additional transformers or in

Define sampling frequency, Define Sampling Frequency? Since real analog...

Define Sampling Frequency? Since real analog signals consist of several frequencies, spectrum of the input signals should be limited to make sure that no signal energy exists a

Consequent effects on the real and reactive power losses, Q. Consider an up...

Q. Consider an upgrade of a three-phase transmission system in which the operating line-to-line voltage is doubled, and the phase or line currents are reduced to one-half the previ

Explain interrupt vector table, The interrupt vector table is always create...

The interrupt vector table is always created in the first 1K area of the memory. Justify the statement. While the CPU receives an interrupt type number start from the PIC, this

Measuring with an oscilloscope, 1. Introduction : Theory:   The ...

1. Introduction : Theory:   The voltage measured across a load follows the Ohm's law which says that the current passing through a conductor between two points is direct

Develop an electric equivalent network, Q. For the mechanical spring-mass-f...

Q. For the mechanical spring-mass-friction system shown in Figure, the differential equation relating the force F(t) and the velocity u(t) is given by  where M is themass,D

Fm broadcast system with standard emphasis, Q. A voice message with W f = ...

Q. A voice message with W f = 2π(3×10 3 ) rad/s and Wrms = 2π(1 × 10 3 ) rad/s is transmitted over an FM broadcast system with standard emphasis. and compare the improvements due

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