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Electronic Circuit Calculators and Unit Converters

Abstract

You can find on this page simple tools, written in Java Script, for quick calculation of various electronic circuits and unit converters. Currently available calculators and convertors concern: parallel resistors; frequency, period and wavelenght of a periodic signal; linear distance units - millimeters, inches and mils. Please, ensure Java Script is enabled in your browser in order to use the tools.

posted:2006.08.23

The information on this page is provided in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Use the information at your own risk.

You can use some letters at the end of the value as power modifiers.
Valid abbreviations are: p - pico, n - nano, u - micro, m - mili, K - kilo, M - mega, G - giga.
Examples:
47u = 0.000047 - means 47µ (micro)
15K = 15000

Frequency and Period
Period = T Frequency = 1 / Period	Frequency = Hz Period = s Wavelength = m (c = 299792458 m/s @vacuum)

Tip: Fill in only one of the fields, and script calculates the others.

 

Parallel resistors
(1/Re) = (1/R1) + (1/R2)	R1= R2= Re=

Tip: Fill in two fields at your choice, and script calculates the the third one.

 

Linear distance units
1 inch = 25.4 millimeters (mm) 1 inch = 1000 mil	inch= mm= mil=

Tip: Fill in only one of the fields, and script calculates the others.
Most applications for PCB design have more convenient and faster ways to switch between mils/millimeters. You should check the manual of your favourite program for PCB layout. The script provided here is for all other cases.

 

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