Dorin Dragan

Both electronics and computer technology require math… all the one you need will be taught to you during college, but you need to get over the fear to pick up books. You need to learn how to read fast and catch on quick. The hard part is getting the hang of it and learning the basics right……

Sure, go ahead. I should have it in my profile :)

Hi Sam, I think you over-engineered your design a little. You can get a square wave with 50% duty-cycle from the output of a comparator that compares a sine wave (without a DC component) to 0V for example. And a comparator is basically just an opamp. Also to generate the sine wave you can use…

I never said they were equivalent… but it’s easy to find your way through both if you already know your way through one of them.

Personally I used only PADS auto-router, and find PADS more user-friendly… but also (for the versions I used) a little more buggy then Altium Designer.

In short, I…

I don’t use auto-routing for PCBs but on the rare occasions I did, I used the PADS auto-router. In PADS 2005 it had some pretty big misbehavings, even if in the end it behaved according to constraints. One example would be some traces that went nowhere, which at low frequencies wouldn’t have an…

In short, yes, it’s called the Peltier-Seebeck effect. I’m guessing the effect in semiconductors is similar to the one in thermocouples: two joints of the 2 materials (metals for classic thermocouples) at different temperatures generate electricity through the 2 materials.

ROTFLOL :))

This, to my temporary shame, is the first time I hear about a PID Controller, however the internet is a generous place and found this:

http://en.wikipedia.org/wiki/PID_controller

First, if the Wikipedia article is correct, you can use opamps for each block of the schematic on that page (summing,…

You’re welcome, but the link works for me… I’m sorry to hear it doesn’t for you. You can try to Google for Digilent RDK-LINE, it should report you the same page among the top results.

Errata: e.q. is actually e.g. and what I wanted to illustrate there was how to connect 2 polarized capacitors in series to obtain a non-polarized capacitor with half capacitance. ( and ) would have been the capacitor delimitations, + and – the polarities and _ the connection, so it should have…