Hi all,
I'd appreciate help in calculating the voltages in the circuit shown. I thought it should be fairly straight forward, but it has me stumped. This is a sample-and-hold circuit for an ADC -- the switch is closed to charge the hold capacitor with the sample voltage and then opened to...
Homework Statement
Given the known quantities ##R, C, L##, ##k##, and the effective values of the voltages ##E_1=E_2=E_3=E## , ##w = \frac{1}{\sqrt{LC}}## of the direct-symmetrical 3-Phase system find the expressions for the effective values of ##U_{12}##, ##U## and ##I## and calculate the...
Homework Statement
1. V for C1
2. Let's Say "C" is Resistor then C1 = R1 etc. how to get Eq Resistance for this Circuit ?[/B]
Homework Equations
Faraday's Law, Kirchoff Law
The Attempt at a Solution
[/B]
for no 1 :I just want to make sure.
point A is transfering negative charge to C2 and...
Suppose I have some sort of a filter, whose transfer function is given by H(w), where w is the angular frequency of the input signal in radians per second. I want to know the maximum value of the transfer function. If I solve for the resonant frequency w0, which from my understanding is the...
Homework Statement
http://imgur.com/qBXvrGz
Above is a sketch of the circuit, a two stage symmetrical attenuator consisting of two symmetrical T attenuator pads connected in cascade, with the values that I have worked out for the resistors.
The reduction is 15dB in the first stage, and 8dB in...
Homework Statement
A step voltage of 120v is applied to a series CR circuit. R = 20KΩ, C = 4µF
1. Deduce, using Kirchoff's voltage law and Laplace Transforms, an expression for the transient circuit current.
2. Using the equation obtained in 1. deduce the equations for the transient voltages...
Homework Statement
In the circuit above ##E_1=E_2=E_3##, ##Ig_1=Ig_2=Ig_3## and ##R_1=R_2=R_3=R_4##. In the case when the switched is closed the power of the ideal generator ##E_2## equals ##P_{E_2}=-30W##. Then the switch opens. Calculate the ##ΔP_{E_1}##.
Homework Equations
3. The Attempt...
Homework Statement
http://imgur.com/a/qlQ5z
Homework Equations
i=i(o)+1/L integration(v0) dt formula is in the attemp at a solution.
The Attempt at a Solution
http://imgur.com/a/HVjl1
For the interval 2<t<infinite . I understand...
Homework Statement
Hi everyone, I'm just having a little trouble with equivalent resistance in a bridge, in the image I attached. The textbook says that the way to solve this is to put R3 and ZL2 in series, that series is in parallel to the short circuit in diagonal, and then at the end we...
Is it possible to have one part of the circuit running with electricity then manually add in a second part of the circuit to the first part and have both running simultaneously? Is there a name for such a circuit? The voltage and current of the first part of the circuit would change because of...
Hi guys,
I recently finished my Physics undergraduate degree, and will be starting my first job in September. My employers have asked me to improve my knowledge of electronics before I begin work. I would like to improve my ability to analyse and understand circuits, and also learn more about...
Hi.i know that a ideal current source has infinite resistance and it supply's constant current to aload connected across it. The current source doesn't have the infinite resistance in series to it but in pparalle. All is well until I think of this Norton's Therom. When we transform a voltage...