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Four Quadrant Multiplier
Circuits
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Last Updated:
June 02, 2021 01:45 PM |
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Links to electronic circuits, electronic schematics and designs for engineers, hobbyists, students & inventors:
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4 ICs implement video AGC & DC restore - 06/18/98 EDN-Design Ideas Four ICs--a multiplier, a sync separator, an op amp, and a dc-restore IC--along with a handful of passive components can implement a complete AGC and dc-restore circuit for video signals (Figure 1). The circuit consists of three main paths the signal path, the gain-control path, and the dc-restore path. The input video signalFile contains several Design Ideas, scroll to this one__ Circuit Design by Tamara Ahrens and Mike Wong, Elantec Semiconductor Inc, Milpitas, CA 4-quadrant power supply provides any-polarity voltage & current - 01//08/04 EDN-Design Ideas A conventional power supply operates only in the first quadrant; positive-voltage output and current are sourced to a load or, with a deliberately miswired output, statically in the third quadrant as a "minus" supply. The conventional supply cannot, however, operate in either the second quadrant as an adjustable load for a minus supply, for example, or the fourth quadrant as a discharge-testing__ Circuit Design by Jon Munson, Linear Technology, Milpitas, CA |
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Compact, Four-Quadrant Lock-In Amplifier Generates Two Analog Outputs - 12/05/09 EDN-Design Ideas Generate a pair of quadrature-phase digital signals__ Circuit Design by Stefano Salvatori and Marco Girolami, Universita Degli Studi Roma Tre, Rome, Italy Four ICs implement video AGC & DC restore - 06/18/98 EDN-Design Ideas Four ICs--a multiplier, a sync separator, an op amp, and a dc-restore IC--along with a handful of passive components can implement a complete AGC and dc-restore circuit for video signals (Figure 1). The circuit consists of three main paths the signal path, the gain-control path, and the dc-restore path. The input video signalFile contains several Design Ideas, scroll to this one__ Circuit Design by Tamara Ahrens and Mike Wong, Elantec Semiconductor Inc, Milpitas, CA |
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Four quadrant power supply provides any-polarity voltage & current - 01//08/04 EDN-Design Ideas A conventional power supply operates only in the first quadrant; positive-voltage output and current are sourced to a load or, with a deliberately miswired output, statically in the third quadrant as a "minus" supply. The conventional supply cannot, however, operate in either the second quadrant as an adjustable load for a minus supply, for example, or the fourth quadrant as a discharge-testing__ Circuit Design by Jon Munson, Linear Technology App Note, Milpitas, CA Quad Output Switching Converter Provides Power for Large TFT LCD Panels - DN349 Design Notes___ Linear Technology/Analog Devices
Quadraphonic Amplifier - This is a four channel amplifier ideally suited for use with quadraphonic equipment such as a Sound Blaster Live card. There is no volume control, audio levels being directly controlled from the sound card itself. __ Designed by Andy Collison
Quadrature (sine/cosine) voltage controlled oscillator - Several schematics on this page, scroll to find this one. The first circuit is a dual ramp generator where the positive and negative ramps are generated separately. This circuit was used as a ramp generator for a transistor curve tracer: the positive going ramp was used for testing NPN transistors and the negative ramp for testing PNP transistors. __ Designed by Richard Torrens |
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Four Quadrant Multiplier
Circuits |
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