Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [current-divider]

37 questions
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Can we explain the differential pair in terms of resistances?

It has always been a big challenge for me to find the most general ideas behind great circuit solutions that can be illustrated by simple electrical concepts... and even by non-electrical analogies from our daily lives. The differential…
Circuit fantasist
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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 need to calculate \$I_{r1}\$ Here's the schema…
Emmanuel Istace
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Current through combination of parallel and series resistors

I have created a simple example in order to understand what is going on with the current through combination of resistors (parallel and in series) in a electrical circuit. I ask my self to calculate the current through resistor R3. R1 is in…
Homer Jay Simpson
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Calculating at which source voltage, Zener regulation begins

I've been trying to understand how to get to the voltage at the source with which the Zener starts limiting the voltage. Circuit and graph in the end. The diode model used was from Motorola. The program is LTspice, by the way. And this is what I did…
Edw590
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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 time I tried to hook them up to the same voltage…
Comrade Capacitor
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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 right. The math on the right is what was put on the…
Emilio Garcia
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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 laws and the terminal relationships of the resistor,…
user88062
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Is it OK/Safe to use a parallel resistor to divide current driving an LED chip?

Still figuring out some fundamentals here, so forgive me if this is a newbie question, if I'm totally missing the mark, or if my math is incorrect (hoping to learn, even if this is all wrong). I have a constant current power supply (12-20V 350mA)…
b. insler
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Mesh Analysis with only current source.?

**Can we use mesh analysis and get current in 1ohm resistor....and is not then why? **
Fro_chin
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Calculate current and voltage through resistors

I'm trying to get a better understanding of the voltage and current dividers. The question for this circuit is: What are the voltages and current through all the resistors? I calculated the total current that flows through the circuit, but now I'm…
Arie Hoekstra
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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 created using CircuitLab I came up with the following way of…
Liam F-A
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Constant current power supply and 4 unique loads that I would like to individually control via PWM. Loads are to be driven at varying currents

I have a 1400ma constant current power supply (plenty of power to drive all loads at 100% duty), and I want to PWM 4 separate loads that are all driven optimally at either 350ma, 700ma, or 1400ma. The voltage drop across the loads vary. If this is…
Wesley Casper
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Current Division Question

I am trying to solve this current division question and I wanted to check if my work was correct. I've tried applying equivalent resistance for the two parallel circuits to form 1 series circuit with (1.5 ohms) and (2 ohms) equivalent resistors.…
FridgeIsStacked
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How do I bias two OTAs without dividing the current?

I'm trying to achieve automatic gain control in an audio circuit, which requires me to use both diode pins of each amplifier available on the LM13700 chip. The diode pins accept a current (Idiode), which is produced from the rectified and buffered…
meekeech
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Series combination of RL and RC circuits(AC Analysis)

While studying for my end-term exam through past year papers(of my college). I came across this question in which we need to do AC Analysis. Need to find out the values of Resistor (R) and Capacitor (C), also the phase angle between Vs and Vb, as…
Elrond
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