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Topics - FourthDr

2
General discussion / PCB+ Giveaway at Gadget Factory! For next few weeks...
Hi:

I spotted a way to score a free PCB + shields. The Gadget Factory is sponsoring a weekly giveaway! Just head over to their forum and post a message here: http://tinyurl.com/buocxaz for an entry! Since I am currently the ONLY person who bothered there is a high likely hood of WINNING! This is a great dev board if you want to learn FPGA CPLD. This week they're giving away a bare Papilio One PCB + B/LED Wing :-) Let's all slashdot them! LOL :-D
3
General discussion / 120v ac to 18v 2-6A DC circuit no stepdown Transformer
Hi:

I need to power a project I'm working from the 120v AC main lines. Ideally it would output 18v DC at 2A up to 6A. It needs to be some kind of step-down switching circuit that does not use a large step-down transformer or large heat sinks. I've looks around and have not really seen anything that would work. I've been told to: buy a laptop power block...LOL. But that won't fit into my project which is tight and irregularly shaped. Any ideas or suggested circuits?

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