[sdiy] FWD: EDN Design Ideas

[Bob Gonsalves]

7. PRACTICAL ADVICE
Years ago, an engineer named Alan Goodrich gave me a unique piece of
advice: Never specify 1k resistors for weak pullups because that
resistor value is too popular. By Howard Johnson, PhD.
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.8.910807891

8. DESIGN IDEAS
For the complete Design Ideas section in PDF format, go to
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.9.910807891

Circuit compensates optocoupler temperature coefficient
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.10.910807891

Soft-start controller is gentle on loads
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.11.910807891

Method offers fail-safe variable-reluctance sensors
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.12.910807891

Circuit efficiently switches bipolar LED
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.13.910807891

Circuit forms adjustable bipolar clamp
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.14.910807891

Analog switch expands I2C interface
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.15.910807891

Circuit safely applies power to ICs
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.16.910807891

Simple circuit forms peak/clipping indicator
http://article.EDNMag.com/UM/T.ASP?A5.12.1454.17.910807891