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ISSUE DATE: AUGUST 18, 1997 OPTIONS
Power-supply switcher, ESSCIRC '97, DVD, Smart homes, FPGAs, Known-good die

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August 18, 1997 - In This Issue

[Ideas For Design]
Video monitor adapter enhances oscilloscope
Video signals can be difficult to display on an oscilloscope. Normal trigger circuits in most oscilloscopes have trouble getting a stable trigger from the combined vertical and horizontal sync signals, color burst, and picture signal in a composite...  — Contributing Author

[Ideas For Design]
Swept sine oscillator has quadrature output
Signals with a know frequency but unknown phase may be detected using an in-phase and a 90° shifted reference signal, as frequently used in lock-in amplifiers, synchronous detectors, and frequency-response analyzers. The 90°-shifted signal...  — Contributing Author

[Ideas For Design]
Full-wave signal rectifier uses just one transistor
The simple circuit shown accomplishes full-wave signal rectification with only one transistor (Fig. 1). This is done by exploiting the “gain reversal” phenomenon exhibited by a saturated bipolar transistor....  — Contributing Author





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