Hobby Electronics Basics

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transformer

i want to convert 12 v ac supply into 12 v dc using fw bridge rectifier.so wht factors should i consider ehile designing...
2 comments posted 17yrs
posted by ketan.barbade
2 comments posted 17yrs posted by ketan.barbade

need help regarding atmega 8 microcontroller

i am basically new to AVR and have just started using ATmega8. I have been using the 1 Mhz internal RC clock for my pro...
0 comments posted 17yrs
posted by ashishshukla19
0 comments posted 17yrs posted by ashishshukla19

555 timer how-to

I have wired 27 10mm leds in series and I'm trying to get them to blink using a 555 timer with 2 capacitors and 2 resis...
19 comments posted 17yrs
posted by 2
19 comments posted 17yrs posted by 2

get kelp ab

>http:/ get a life spaming fake
1 comments posted 17yrs
posted by k3vr
1 comments posted 17yrs posted by k3vr

get kelp afg

>a se get a life spaming fake
1 comments posted 17yrs
posted by k3vr
1 comments posted 17yrs posted by k3vr

Variable frequency delay

I have a strobe light which is used to view rotating machinery. It uses a magnetic tach sensor which has a 0 - 5V outpu...
5 comments posted 17yrs
posted by eryk33
5 comments posted 17yrs posted by eryk33

Need connector for digicam battery pack

I want to build an external battery pack for a Canon A590IS digital camera. It would consist of two C or D cells and wo...
4 comments posted 17yrs
posted by gh424NO824SPAM
4 comments posted 17yrs posted by gh424NO824SPAM

Is there such a thing as a consumer PC / TV device

Hello We have computers in our home plus a large screen TV. It would be great to be able to have a little keyboard and...
8 comments posted 17yrs
posted by anguscomber
8 comments posted 17yrs posted by anguscomber

Help: I Need A Timer

I've been searching around and can't seem to find a simple plug-in LED timer with a large red number display (like an a...
3 comments posted 17yrs
posted by Searcher7
3 comments posted 17yrs posted by Searcher7

Increase voltage using capactior etc

Hello. I have a project where I'm making a digital picture frame/media center out of an old laptop. I took the systembo...
4 comments posted 17yrs
posted by aosborn
4 comments posted 17yrs posted by aosborn

Highside FET extending on time indefinitely

This is from AN978 pg18 using IR's bootstrapped HS drivers. http://i40.tinypic.com/1gljdv.png You can see from the pict...
3 comments posted 17yrs
posted by spamme
3 comments posted 17yrs posted by spamme

Voltage regulators fail high

I've been using 5V regulators - L7805ACV and others. I've had some failures, no doubt due to careless wiring on my brea...
27 comments posted 17yrs
posted by news
27 comments posted 17yrs posted by news

Battery power supply

Hello, I'm more of a software-guy but I have a microcontroller project underway that is intended to run off battery pow...
2 comments posted 17yrs
posted by manenidittoga
2 comments posted 17yrs posted by manenidittoga