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EDN Online: The latest from EDN
  October 2, 2008

FREE MAGAZINE SUBSCRIPTION (PRINT OR DIGITAL)

TOP STORY

Add charging status to simple lithium-ion charger
Add charging status to simple lithium-ion chargerBy adding a few simple components to a single-cell Li-ion charger IC, you can get LEDs that indicate charging and charge completed. Read more >>

MORE DESIGN IDEAS

Use an LM317 as 0 to 3V adjustable regulator

Alarm monitors rotational speed of dc motor

555 timer drives multiple LEDs from one NiMH cell

Microcontroller inputs parallel data using one pin

All of the above Design Ideas in a single PDF file

MORE ARTICLES >>

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CONTROL YOU CAN COUNT ON FROM KEPCO.
Kepco?s HSF series of hot-swappable plug-in power supplies (50-1500W) are designed to be combined in an N+1 fault-tolerant power system. All models have PFC (Power Factor Correction). HSF may be used independently as multi-output power supplies. Available in 1U (1.75?) and 3U (5.25?) housings. For full specs, Click here.

COLUMNISTS

Baker's Best: Transimpedance-amplifier-noise issues

edn.comment: Why tout a demo board nobody can buy?

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Dilbert


By Scott Adams

This week's Dilbert

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Put a bench in your bag
Agilent?s paperback-sized USB modular instruments make it possible. With a scope, a DMM, a function generator and the familiar software interface, you?ll be ready for measurements at a customer site, an outsourced manufacturing operation, and beyond. Get the full story.

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