Open Source FEA Software

There is some pretty amazing open source software available for multi-physics FEM. This page describes the open source software pulled together to perform FEM (finite element modeling). Originally the software used was QuickField, student version. The limitation on...

read more

Runaway Self-heating Feedback

Feedback control systems have always been my fascination and topic of interest. When I find that something as simple as a device failing by overheating can be described as a feedback loop I'm in awe of the way something in the physical world can be expressed by a few...

read more

Why MTBF can be misleading

The use of MTBF (Mean Time Between Failures) is almost always applied wrong. As a producer of a product you would want the product to last beyond the warranty period and long enough to be perceived by the customer as a 'Quality' product. One way of quantifying this is...

read more

Fractional Divider in verilog

Shown here is the derivation of the equation for a fractional divider (FD) along with the verilog code implementation. This code has been tested to work on a Spartan 3AN and is available on Bitbucket. The purpose of this FD is to give higher resolution in a digital...

read more