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ISSUE DATE: APRIL 5, 1999 OPTIONS
High-Voltage/logic SOI process, Pc-board design, CompactPCI, Probing, Optical MEMs, The best of Pease


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April 5, 1999 - In This Issue

[Design Application]
Learn The Ins And Outs Of Probing Those Tricky Differential Signals
 — Contributing Author

[Ideas For Design]
Firmware-Adjustable LCD Bias Generator Swings Outside The Rails
Using liquid-crystal-display (LCD) modules over a wide range of temperatures sometimes requires adjustment of the bias voltage to maintain an acceptable contrast level. This adjustment ideally...  — Contributing Author

[Ideas For Design]
Build A Zero-Power Switch Supervisor
A recent project requirement specified the need for a special indicator to show whether a security switch was used during the time the system was powered off. Because our system has a real-time...  — Contributing Author

[Ideas For Design]
PC Helps Improve Current Measurements
Measuring currents with a current meter can be problematic due to the series impedance of the meter. Most current meters have a series resistance of about half an ohm, which introduces an error...  — Contributing Author

[Ideas For Design]
A Unique Discrete Zero-Crossing Detector
A zero-crossing detector delivers an output pulse that synchronizes other circuitry to the transitions through zero volts of a sinusodial source for both polarity excursions. This detector, which...  — Contributing Author

[Pease Porridge]
What's All This CD4007 Stuff, Anyhow?
I am slow, dumb, STUPIDO. However, the sudden cessation of stupidity is worthy of some mention. I knew about CMOS circuits in the 1970s. I even designed a CMOS operational amplifier back in '74....  — Bob Pease





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