Category Archive: EDA

Jan
10

Compact ATX Breakout Board

Computer to 12 VDC supply conversion board

It sucks when you need 12 VDC and your power supply just died.  Previously we made an ATX breakout board to turn an ATX power supply into a fixed voltage bench DC power supply.  Here we present a board that is designed to be smaller and for use as a backup.

Permanent link to this article: http://blog.curioussystem.com/2011/01/compact-atx-breakout-board/

Oct
22

Debug adapter for eZ430

Adaptor for eZ430 and eZ430-RF

For those of you who do prototyping with the eZ430 or eZ430-RF boards, this may be of interest.  It’s a debug adapter that you can put inline to make use of  a logic analyzer or other test equipment easier.  It expands out to 0.1″ spacing posts from the 0.05″ spacing used in the eZ430 connectors. …

Continue reading »

Permanent link to this article: http://blog.curioussystem.com/2010/10/debug-adapter-for-ez430/

Oct
01

ATX Power Supply Breakout Board

ATX Breakout board

How many of you have or know of someone who has an old computer just sitting in the closet gathering dust. How many of you would like to have a multiple output bench power supply? Do you need an extra +12V DC power supply for your CB, ham shack or office? What we have here …

Continue reading »

Permanent link to this article: http://blog.curioussystem.com/2010/10/atx-power-supply-breakout-board/

Aug
18

The Dirty Truth about USB device Charging

European USB Charging Resistor

How many devices do you have that charge over USB?   How many devices require you to do something special, or have a special adapter to do it? The last few cell phones I’ve had have USB micro or mini ports to charge from.  I figure I can take a USB A Male to USB …

Continue reading »

Permanent link to this article: http://blog.curioussystem.com/2010/08/the-dirty-truth-about-usb-device-charging/

Jul
22

Altium Designer Overbar or Overline

While trying to move to a new EDA package, Altium Designer, I had a really hard time finding out how to put a overbar, or overline on top of a pin designator. This is usually used for active low signals. In Eagle PCB you just put an exclamation in front of the signal, or around …

Continue reading »

Permanent link to this article: http://blog.curioussystem.com/2009/07/altium-designer-overbar-or-overline/