Electronics, PCB Design and PCB Layout Daycounter, Inc.
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MSP430 Development
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Design for USB

Maximum Flux Density Calculator

See our other Electronics Calculators.

The maximum flux density for a core/coil geometry should be calculated to verify that it is below the specified value for a given core, so that the core doesn't saturate.  This calculator is useful in matching a core size to the required power.  

Note that if there is no DC term, then the calculation is completely independent of the core material.  

 

AC Terms
Vrms (Vrms)
F (frequency, use the minimum frequency that the coil will see) (MHz)
N (Number of turns)  
Ae (Equivalent area -  the cross section of core) (cm2)
Optional DC Terms.
Idc (DC current through winding. This is optional) (A)
AL (Specific to core used. Only enter if, coil has DC) (mH/Turns2)

Bmax (gauss)

Equations

Bmax= (Vrms*108)/(4.44*F*N*Ae) + (N*Idc*AL)/(10*Ae) gauss

Note if no DC current flows, then the second term of the equation is dropped. 

 

 

Other Electronics Links

We offer a broad range of electrical engineering calculators and electronics articles and tutorials. 

Daycounter specializes in contract electronics design.  Do you need some help on your project?  Contact us to get a quote. 


 

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