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Battery backup [11 articles]
ClueLess - 18:04 23-05-08
Hi All
I have a setup with 8051 micro controller and I want to provide a
battery backup so that when power fails the micro continues to work.
Only the micro needs to work and ... Read More
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iPod Chargers Question [3 articles]
Talal Itani - 10:33 23-05-08
Why is it that some USB chargers cannot charge the Apple iPods? I tested
multiple USB charges, and only those that say "for iPods" work.
... Read More
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Amp Power Supply [3 articles]
Dave.H - 02:04 23-05-08
I'm building an amplifier for my iPod, based on two LM380 chips, I was
wondering if you could parallel the two amplifier sections off the one
battery supply, which will be a 9 vo... Read More
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Relay Coil Suppression, DC relays [2 articles]
amdx - 17:05 22-05-08
A question often asked is about relay coil transient suppression. I ran
across this in my files. It has some good information.
http://relays.tycoelectronics.com/appnotes/ap... Read More
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Batteries for toshiba pa3307u-1brs laptop
sallybattery - 03:57 22-05-08
Want to buy TOSHIBA pa3307u-1brs battery? batteries for toshiba
pa3307u-1brs laptop offered work well with satellite p10
series,satellite p10-104,satellite p10-133,buy toshiba pa... Read More
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volume control for clock [7 articles]
Socrates - 15:27 21-05-08
Hello,
I have an electronic quartz clock with chimes that needs a volume control.
It has a 2 1/4 speaker and is way too loud for the room it is in. Is there
any place that ma... Read More
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basic electronics
sweet&soft - 10:52 21-05-08
Circuit measures true-rms and average value
The circuit measures both the true-rms value and the
rectified average value of an ac signal.This design uses
two low-cost ICs
Opera... Read More
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