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DESIGN IDEAS - CMOS IC Makes Low-Cost Digital Potentiometer - Power Management In The ST62 - Automatic Power-Off Circuit Saves Battery - Simple PC Smart Card Reader Enhancement - Digital Position Encoder Does Away With ADC - Single-Supply RS-232 Transmission Without Level-Translator ICs - µC Controls Charge Pump As Background Task - Clock Multiplier Circumvents PLL - Drive Smart Cards With A Low-Cost MCU's UART - Wireless “Battery” Energizes Low-Power Devices - Harvest Energy Using A Piezoelectric Buzzer - Drive A Single-Coil Latching Relay Without An H-Bridge Circuit DESIGN CONTESTS ARTICLES
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THE
GREEN STANDBY
Article published in the Nuts And Volts
Magazine, Vol. 30 No. 10, October 2009 http://nutsvolts.texterity.com/nutsvolts/200910?sub_id=ZuXXPXKPjyNE#pg40 This awesome unit lets your appliances stay connected to the grid while cutting the costs of your electric bills at the same time. DESIGNING WITH EFFICIENCY IN MIND "It’s difficult to ignore the ‘go green’ mantra that’s sweeping through the media and permeating virtually every industry. The way I see it, most of the activity is focused on marketing and printing consumer-friendly green stickers that proclaim enhanced efficiency of sorts for the same old products. Even so, it is time for us to take responsibility for our carbon footprint by using what we have more intelligently, by buying more efficient products in the first place, and — for electronics enthusiasts — by designing with efficiency in mind." Bryan
Bergeron
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