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Cordell Distortion Magnifier
#15
Ruski "Distortion magnifier" iz 1990. godine:
http://archive.radio.ru/web/1990/06/062/

Vrlo jednostavna šema (samo jedan op-amp), a iznos reziduuma se očitava osciloskopom.
Princip merenja je isti kao kod Cordell-ovog sklopa - izlazni signal poj. snage se oduzima od pobudnog signala, pri čemu signal generator mora da ima visokonaponski signal.
Na primer, za pojačavač od 100W@4R, SG mora da ima izl. napon od 20V. Izgleda da su takvi generatori u SSSR tada bili uobičajeni.

Autor navodi granicu merenja THD od 0,001%, tj. -100dBc, i to uz korišćenje njihovih tadašnjih osciloskopa.

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Messages In This Thread
Cordell Distortion Magnifier - by Braca - 03-28-2020, 10:53 AM
RE: Cordell Distortion Magnifier - by Braca - 03-29-2020, 02:17 PM
RE: Cordell Distortion Magnifier - by Khadgar2007 - 03-29-2020, 02:31 PM
RE: Cordell Distortion Magnifier - by Braca - 03-29-2020, 02:42 PM
RE: Cordell Distortion Magnifier - by Khadgar2007 - 03-29-2020, 05:30 PM
RE: Cordell Distortion Magnifier - by Braca - 03-31-2020, 12:03 PM
RE: Cordell Distortion Magnifier - by Braca - 05-27-2020, 08:04 PM
RE: Cordell Distortion Magnifier - by mikikg - 05-27-2020, 09:32 PM
RE: Cordell Distortion Magnifier - by Macola - 05-27-2020, 10:47 PM
RE: Cordell Distortion Magnifier - by Braca - 05-28-2020, 09:13 AM
RE: Cordell Distortion Magnifier - by Braca - 05-30-2020, 12:59 PM
RE: Cordell Distortion Magnifier - by Khadgar2007 - 05-30-2020, 01:12 PM
RE: Cordell Distortion Magnifier - by Braca - 07-18-2020, 01:39 PM
RE: Cordell Distortion Magnifier - by Braca - 02-03-2021, 01:32 PM
RE: Cordell Distortion Magnifier - by Braca - 02-14-2021, 02:05 PM

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