MD817Z - Negative resistance converter - Google Patents

Negative resistance converter

Info

Publication number
MD817Z
MD817Z MDS20140022A MD817Z MD 817 Z MD817 Z MD 817Z MD S20140022 A MDS20140022 A MD S20140022A MD 817 Z MD817 Z MD 817Z
Authority
MD
Moldova
Prior art keywords
pole
output
amplifier
inputs
inverting
Prior art date
Application number
Other languages
Romanian (ro)
Russian (ru)
Inventor
Виталие НАСТАС
Original Assignee
Технический университет Молдовы
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 Технический университет Молдовы filed Critical Технический университет Молдовы
Priority to MDS20140022 priority Critical patent/MD817Z/en
Publication of MD817Y publication Critical patent/MD817Y/en
Publication of MD817Z publication Critical patent/MD817Z/en

Links

Landscapes

  • Measurement Of Resistance Or Impedance (AREA)

Abstract

The invention relates to the field of measuring equipment and radio electronics and can be used for high-accuracy reproduction of negative resistances adjustable with regulation in a wide value range.The negative resistance converter comprises an operational amplifier (5) with two inputs and one output, having its inverting input connected to the common wire, a fixed resistor (3), having one pole connected to the output of the amplifier (5), a switch (10), connected with the movable contact to the output of the amplifier (5), a variable resistor (7), having one pole connected to the common wire, a block (9) of n resistors, connected with one pole to the fixed contacts of the switch (10) and with the other poles together - to the other pole of the variable resistor (7), and two terminals (2) and (8), one being connected to the other pole of the fixed resistor (3) and the second - to the common wire. The converter further comprises three operational amplifiers (1), (4) and (6), each with two inputs and one output. The amplifiers (1) and (6) are each connected with their inverting inputs to their outputs and with their non-inverting inputs - to the terminal (2) and to the other pole of the variable resistor (7), respectively. The inverting and non-inverting inputs of the amplifier (4) are connected to the outputs of the amplifiers (1) and (6), respectively, and its output is connected to the non-inverting input of the amplifier (5).
MDS20140022 2014-02-12 2014-02-12 Negative resistance converter MD817Z (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDS20140022 MD817Z (en) 2014-02-12 2014-02-12 Negative resistance converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDS20140022 MD817Z (en) 2014-02-12 2014-02-12 Negative resistance converter

Publications (2)

Publication Number Publication Date
MD817Y MD817Y (en) 2014-09-30
MD817Z true MD817Z (en) 2015-04-30

Family

ID=51625708

Family Applications (1)

Application Number Title Priority Date Filing Date
MDS20140022 MD817Z (en) 2014-02-12 2014-02-12 Negative resistance converter

Country Status (1)

Country Link
MD (1) MD817Z (en)

Citations (9)

* 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
MD2840G2 (en) * 2004-12-01 2006-04-30 Технический университет Молдовы Resistance converter
MD3154G2 (en) * 2005-10-04 2007-03-31 Технический университет Молдовы Impedance converter
MD3173G2 (en) * 2006-03-21 2007-05-31 Технический университет Молдовы Impedance converter
MD3689G2 (en) * 2007-09-18 2009-03-31 Технический университет Молдовы Impedance 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
MD649Z (en) * 2012-11-12 2014-01-31 Технический университет Молдовы Negative resistance converter

Patent Citations (9)

* 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
MD2840G2 (en) * 2004-12-01 2006-04-30 Технический университет Молдовы Resistance converter
MD3154G2 (en) * 2005-10-04 2007-03-31 Технический университет Молдовы Impedance converter
MD3173G2 (en) * 2006-03-21 2007-05-31 Технический университет Молдовы Impedance converter
MD3689G2 (en) * 2007-09-18 2009-03-31 Технический университет Молдовы Impedance 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
MD649Z (en) * 2012-11-12 2014-01-31 Технический университет Молдовы Negative resistance converter

Also Published As

Publication number Publication date
MD817Y (en) 2014-09-30

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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)