Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Current Divider - Online Calculator

An electric current divider outputs a current that is a fraction of the input current.

A current divider is a linear circuit that produces an output current that is a fraction of the input current.

electric circuit current divider

Current is split between the branches of the divider. The total resistance in the electrical circuit can calculated

R T = R1 R2/ (R1 + R2)      (1)

where

R T = total resistance (ohms, Ω)

R n = resistance in branch n (ohms, Ω )

The voltage difference across the circuit

U = I R T

= I R1 R2/ (R1 + R2)   (2)

where

U = electrical potential (volts, V)

I = total current through the circuit (amps, A)

Split current I1 can be calculated

I1 = U / R1

= (I R1 R2/ (R1 + R2) ) / R1

=   I R2/ (R1 + R2)     (3)

Split current I2 can be calculated

I2= U / R2

= (I R1 R2/ (R1 + R2) ) / R2

=   I R1 / (R1 + R2)     (4)

Example - Current Divider

The total resistance in a current divider with supply voltage 3.3 V and resistor R1 = 220 ohm and resistor R2=  47 ohm can be calculated as

R T = ( 220 ohm ) ( 47 ohm ) / (( 220 ohm ) + ( 47 ohm ))

= 38.7 ohm

The total current through the current divider can be calculated

I = (3.3 V) / (38.7 ohm)

= 0.085 amps

= 85 mA

The current through resistor R1 can be calculated

I1 = (3.3 V) / (220 ohm)

= 0.015 amps

= 15 mA

The current through resistor R2 can be calculated

I2= (3.3 V) / (47 ohm)

= 0.070 amps

= 70 mA

Current Divider - Online Calculator

electric circuit current divider

R - total resistance (ohms)

I1 - split current (amps)

I2- split current (amps)

I - total current (amps)

Related Topics

  • Electrical

    Electrical engineering with units, amps and electrical wiring. Wire gauges, electrical formulas, motors and more.

Related Documents

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

3D Engineering ToolBox Extension to SketchUp - add parametric components to your SketchUp model

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

Translate this Page

Translate this page to Your Own Language .

About the Engineering ToolBox!

Privacy Policy

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

This page can be cited as

  • The Engineering ToolBox (2012). Current Divider - Online Calculator. [online] Available at: https://www.engineeringtoolbox.com/current-division-d_1837.html [Accessed Day Month Year].

Modify the access date according your visit.

3D Engineering ToolBox - draw and model technical applications! 2D Engineering ToolBox - create and share online diagram drawing templates! Engineering ToolBox Apps - mobile online and offline engineering applications!

Unit Converter

















































8.21.8

.