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Questions tagged [current-divider]

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2answers
98 views

Can I use a current divider to protect my IC?

I designed an oscillator circuit using a TLC555 timer IC to create a 2 second pulse, which is used to drive a 12V 6W solenoid via a relay. Both the IC and the solenoid are run off of 12V, but every ...
-1
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2answers
114 views

Why (physically) does a current divider circuit show that both resistors have an effect on individual current?

I understand both the current divider formula and why it is mathematically correct. I am curious though why physically this is true. My book provided me the following circuit: simulate this circuit &...
-1
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1answer
73 views

Find the current at the resistor

I've tried to divide current at 8A and then make a Kirchhoff voltage law between the resistor and dependent current source but I still can't solve it.
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2answers
68 views

How to find the current in this circuit?

Please help me find the current flow in A1,A2 and A3. its my First FEE class and I was able to solve this with voltage source but with current source Iam Having trouble. also V1 and V3 are the ...
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1answer
57 views

In Parallel resonance circuit mentioned below, is current equal for Resistor and Inductor?

The parallel capacitor will have current leading voltage by 90°. In the case of Resistor and Inductor (which are in series with each other but they both are parallel to capacitor). Now, the upper half ...
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3answers
103 views

Dividing Current to 10 outputs from 5V source

I need to create a simple power supply circuit to feed 10 external boards, similar to a USB power hub. My power source is an AC to DC adapter measured to output 5V 10A. I need to limit the maximum ...
0
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1answer
67 views

What is the current flowing through the resistor in this circuit?

I have to find the current flowing through the resistor connecting node a to d. I know it's a current divider problem, but I'm having a hard time finding the correct expression. I presume R5 is ...
0
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0answers
229 views

AC current divider

I have a constant AC current source, 20mA 100Hz. Its voltage compliance would be 100V. Can I change it to a dual 10mA constant current source by using any additional circuit? 10mA should be kept at ...
0
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1answer
69 views

How can i find the current divider in the right resistor valued as “2 * R1”?

simulate this circuit – Schematic created using CircuitLab My intention here is to find the current in the right resistor valued as "2*R1" using the current-divider formula. I don't know how to ...
0
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2answers
113 views

current divider problem

$$R_1=27kOhms ,R_2=56kOhms,R_3=50kOhms,V_s=5V$$ I'm trying to find the current thats flowing through R3, what i did was to convert the voltage source and resistors R1+R2 into a current source and then ...
1
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2answers
261 views

Finding current in s-domain. Please help?

I need to find the current going through the inductor \$(I_l)\$ for \$t>0\$ using Laplace circuit analysis, to then find \$(I_l)\$ in the time domaine. simulate this circuit – Schematic ...
0
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1answer
720 views

Confusion over current divider rule

I asked a question here about calculating the resistance an unknown resistor using superposition. As part of the answer I was given $$I_1=I_3\frac{R_2+R_i}{R_1+R_2+R_i}$$ and $$I_2=I_3\frac{R_1}{R_1+...
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1answer
97 views

Why does the current intensity decrease when I connect two voltage sources in series?

I actually connected lemons with batteries and I found that the voltage of lemon and the battery (i.e. the bottom left circuit) is 3.8V while the current intensity in the top left circuit is 0.1mA! ...
2
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6answers
442 views

Determing the voltage across a resistor

My professor went over this problem in class today, but I had trouble understanding it even after a few questions were asked. The goal was to find the voltage, \$v_i\$ across the 8Ω resistor on the ...
0
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1answer
287 views

Did I correctly use the Voltage divider rule to derive the transfer function?

Question and diagram are on link and NOTICE Rs is assumed to be a short. I believe the transfer function is going to be: A(jw) = 1/(jw*C1*R3+1) I arrived at this answer by using a simple voltage ...
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5answers
29k views

Current division with more than two parallel resistor

According to the current division rule, if two resistors R1 and R2 are parallel then \$ I_{R1} = \frac{R2}{(R1 + R2)} \times I \$ . In this case which resistance value should I pick for the ...
-2
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1answer
458 views

Current Division Rule

I have the following circuit.They are simplifying the circuit and applying current division To use current division the incoming current should not have a resistor in between,right? But in this ...
0
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1answer
388 views

Current division into three branches

Please see the image below for the circuit. I am trying to find the currents through each branch in the circuit. However one part, which is essential in finding currents through all the branches, ...
2
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2answers
121 views

Why am I calculating a higher current through this inductor than is being supplied?

I'm trying the find the current (using phasors) through the inductor shown below. Using the current divider rule, I got that 840+j480 uA are going through the inductor. Additionall, by Kirchoff's ...
0
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2answers
471 views

Possible calculation error using current divider rule on a non ideal current source circuit

I am going through my notes in preparation to an exam, the following was taken straight from the board as my lecturer wrote it. As far as im aware the current divider rule should be $$I1 = It * (Rt/...
3
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4answers
1k views

Current divider rule calculation issue

I'm doing the exercises from Wisc-Online. This one I think they are really great to learn and practice and have already done a bunch of their practical trainings. But here I'm starting to be crazy. I ...