PCB design toolkit – PCB Via Current | PCB Trace Width | Differential Pair Calculator | PCB Impedance – [via]
The Saturn PCB Toolkit is the best resource for PCB related calculations you can find. It incorporates many features that PCB designers and engineers are in regular need of like current capacity of a PCB trace, via current, differential pairs and much more. Please download our PCB Toolkit today for free and enjoy!
PCB design toolkit – PCB Via Current | PCB Trace Width | Differential Pair Calculator | PCB Impedance - [Link]
Electro-Calc is a free software developed to facilitate the design of electronic and electrical projects. Unfortunately is not in English.
Eletro-Calc Calculator v4 - [Link]
The identification for the Amidon toroids consists of one or two letters (T=toroid and FT=ferrite toroid), followed by a number (for ex. T50), which represents the outer diameter dimension expressed in 0,1 inches, followed by a separation mark (dash, dot, stroke), followed by another number indicating the frequency mixture and the frequency range at which it would be recommended to use the toroid.
It should be taken in account that a toroid with a X declared frequency will be able to operate with fairly good performances even at 10 times higher frequencies and only the A factor will decrease.
The iron powder toroids are colored according to their mixture; the first color covers three sides and the second color the remaining side.
Simple software to calculate the air core coils, the most widely used in RF circuits and may use the software to determine the data to build a coil, knowing that the inductance of this coil. The software will give the result of how many turns will be required to achieve certain inductance value, and provides the wire diameter … In addition has a table with wires AWG mm thick.
This is the very first and I hope not the last post of this blog. With this event I want to share with you LED calculator. It is also my first project with Visual C++ Expression 2008, this software development environment is free for students.
Calculator is capable of finding suitable standard E12 (10%) resistor value and power for one LED designs. There also some tips for user to find LED forward voltage:
LED resistor calculator for windows - [Link]
a resistor divider calculator spreadsheet [via]
Don’t we all have had frustrations galore when we were trying to fine tune the resistor divider for our voltage feedback on PS and LODs? Well, my good friend Art Nace came up with this wonderful tool to calculate the best fit values for the resistors for dividers. It even lets you specify voltage tolerances over temp. give it a try and let me know what you think?
Resistor divider calculator - [Link]
Neat small unit converter for electronic engineers. If you found this useful, but lack of features, please be free and report/ask for updates. This tool is completely free.
DBCalc – dB Calculator freeware - [Link]
Using this tool you can find closest simple resistors net of standard resistors values. Select net, select required resistance and you will got pair (or triplet) of resistors with combined value closest to your needs.
EqResistors 2.0 – Resistors Combination Calculator - [Link]
RC time constant / voltage calculator.
RC time constant / voltage calculator – [Link]
Excellent story and calculator round up at the Electronics Design blog… [via]
I suspect I was part of the first generation to have been brought up with “pocket” calculators (“pocket” to distinguish them from desktop mechanical calculators the size of a bread bin). I vaguely remember seeing them in my dad’s electronics magazines, sometime around 1979. One Christmas around then, my dad was bought one which has a fluorescent blue/green display which really looked super high-tech, and is still a really pleasing design. Although it was only a classic four-function machine (add, subtract, multiply, divide) I really coveted it, but it was couple of years before I got my own calc.
Calculator Round Up - [Link]
Calcuccino from Cambridge Coders is a programmers’ calculator that uses the iPhone’s menus and swipe gestures to improve on the conventional calculator. The result is a powerful calculator for programming, engineering and scientific use, with big buttons for fast and reliable entry. Calcuccino features signed, unsigned, and floating-point arithmetic; variable word size from 2 to 64 bits; an interactive ASCII symbol table; bit shifting and rotation; Boolean logic; binary, octal, decimal and hexadecimal notation; bitwise logic; sin, cos, tan, log and square root; and IEEE-754 support. [via]
Programmer’s calculator app for iPhone – [Link]