MD638Y - Impedance converter - Google Patents

Impedance converter Download PDF

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Publication number
MD638Y
MD638Y MDS20120127A MDS20120127A MD638Y MD 638 Y MD638 Y MD 638Y MD S20120127 A MDS20120127 A MD S20120127A MD S20120127 A MDS20120127 A MD S20120127A MD 638 Y MD638 Y MD 638Y
Authority
MD
Moldova
Prior art keywords
operational amplifier
output
differential
connected respectively
operational
Prior art date
Application number
MDS20120127A
Other languages
Moldavian (mo)
Romanian (ro)
Inventor
Vitalie Nastas
Pavel Nicolaev
Original Assignee
Univ Tehnica Moldovei
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Tehnica Moldovei filed Critical Univ Tehnica Moldovei
Priority to MDS20120127A priority Critical patent/MD638Z/en
Publication of MD638Y publication Critical patent/MD638Y/en
Publication of MD638Z publication Critical patent/MD638Z/en

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  • Measurement Of Resistance Or Impedance (AREA)

Abstract

The invention relates to the field of measuring technology and radioelectronics and can be used for reproduction of floating virtual impedances represented in polar coordinates.The impedance converter comprises an operational amplifier (1) with two inputs and one output, a differential amplifier (5) with unit amplification coefficient, having its inputs connected respectively to the output and to the noninverting input of the operational amplifier (1), a code-controllable shifter (6), made with the possibility controlling the phase in the range of 0°…360° and with the unit amplification coefficient, having its input and output connected respectively to the output of the differential amplifier (5) and to the noninverting input of the operational amplifier (1), a code-controllable variable resistor (3), having its contacts connected respectively to the inverting input and to the output of the operational amplifier (1), a fixed resistor (4), having one contact connected to the noninverting input of the operational amplifier (1), two signal terminals (2 and 7), one of which (2) is connected to the inverting input of the operational amplifier (1) and three terminals (8, 9 and 10) of the power supplies, the common poles of which are electrically separated from the common wire of the converter, to two terminals (9 and 10) are connected respectively the positive and negative power supply contacts of the operational (1) and differential (5) amplifiers and of the phase shifter (6), and to the third terminal (8) are connected the second signal terminal (7), the second contact of the fixed resistor (4) and the common points of the operational (1) and differential (5) amplifiers and of the phase shifter (6).
MDS20120127A 2012-09-11 2012-09-11 Impedance converter MD638Z (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDS20120127A MD638Z (en) 2012-09-11 2012-09-11 Impedance converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDS20120127A MD638Z (en) 2012-09-11 2012-09-11 Impedance converter

Publications (2)

Publication Number Publication Date
MD638Y true MD638Y (en) 2013-05-31
MD638Z MD638Z (en) 2013-12-31

Family

ID=48537088

Family Applications (1)

Application Number Title Priority Date Filing Date
MDS20120127A MD638Z (en) 2012-09-11 2012-09-11 Impedance converter

Country Status (1)

Country Link
MD (1) MD638Z (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD888Z (en) * 2014-11-05 2015-09-30 Технический университет Молдовы Impedance converter

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD2130G2 (en) * 2002-01-23 2003-09-30 Технический университет Молдовы Impedance converter
MD2462G2 (en) * 2003-10-09 2004-11-30 Технический университет Молдовы Impedance converter
MD3154G2 (en) * 2005-10-04 2007-03-31 Технический университет Молдовы Impedance converter
MD3111G2 (en) * 2005-10-04 2007-02-28 Технический университет Молдовы Admittance converter
MD3173G2 (en) * 2006-03-21 2007-05-31 Технический университет Молдовы Impedance converter
MD3461G2 (en) * 2007-03-02 2008-09-30 Технический университет Молдовы Admittance converter
MD3689G2 (en) * 2007-09-18 2009-03-31 Технический университет Молдовы Impedance converter
MD90Z (en) * 2008-12-04 2010-04-30 Технический университет Молдовы Admittance converter
MD195Z (en) * 2009-05-06 2010-11-30 Технический университет Молдовы Impedance converter
MD248Z (en) * 2009-07-07 2011-02-28 Технический университет Молдовы Impedance converter
MD420Z (en) * 2011-01-11 2012-04-30 Технический университет Молдовы Impedance converter
  • 2012

Also Published As

Publication number Publication date
MD638Z (en) 2013-12-31

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Legal Events

Date Code Title Description
FG9Y Short term patent issued
KA4Y Short-term patent lapsed due to non-payment of fees (with right of restoration)