SQUARER

Published:2009/7/4 21:04:00 Author:May | From:SeekIC

Simple tunnel-diode circuit doubles frequency efficiently without use of tuned circuits. Fundamental and other harmonics of input areat least 30 dB below level of frequencydoubled output. Circuit operates from DC to upper frequency limit of opamp used. Adjust R2 so diode current is at peak of its bias current, to eliminate offset at amplifier output.-R. Kincaid, Squaring Circuit Makes Efficient Frequency Doubler, EDN/EEE Magazine, Aug. 15, 1971,p 45.



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