MD888Z - Impedance converter - Google Patents
Impedance converterInfo
- Publication number
- MD888Z MD888Z MDS20140137A MDS20140137A MD888Z MD 888 Z MD888 Z MD 888Z MD S20140137 A MDS20140137 A MD S20140137A MD S20140137 A MDS20140137 A MD S20140137A MD 888 Z MD888 Z MD 888Z
- Authority
- MD
- Moldova
- Prior art keywords
- operational amplifier
- output
- pole
- phase
- input
- Prior art date
Links
Landscapes
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention relates to the field of measuring equipment and radioelectronics and can be used for reproducing virtual impedances with independent control of modulus and phase.The impedance converter comprises an operational amplifier (1) with two inputs and one output, two terminals (2, 7), connected respectively to the inverting input of the operational amplifier (1) and to the common wire, a fixed resistor (6), connected between the noninverting input of the operational amplifier (1) and the common wire, the first variable resistor (4) with the nominal resistance value RB, having one pole connected to the inverting input of the operational amplifier (1), and a differential amplifier (7) with stepwise-variable transmission coefficient, having its inputs connected respectively to the output and to the noninverting input of the operational amplifier (1). The converter further comprises a controllable phase shifter (8) with the possibility of controlling the phase in the value range 0…360° and with unit amplification coefficient, having its input connected to the output of the differential amplifier (7) and its output - to the noninverting input of the operational amplifier (1). The converter also comprises a second variable resistor (5) with the nominal resistance value RF = 0,1RB, having one pole connected to the output of the operational amplifier (1) and the second pole to the second pole of the first variable resistor (4), and the phase shifter (8) is provided with control bodies for step, smooth coarse and smooth fine control of the phase shift.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20140137A MD888Z (en) | 2014-11-05 | 2014-11-05 | Impedance converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MDS20140137A MD888Z (en) | 2014-11-05 | 2014-11-05 | Impedance converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MD888Y MD888Y (en) | 2015-02-28 |
| MD888Z true MD888Z (en) | 2015-09-30 |
Family
ID=52580540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MDS20140137A MD888Z (en) | 2014-11-05 | 2014-11-05 | Impedance converter |
Country Status (1)
| Country | Link |
|---|---|
| MD (1) | MD888Z (en) |
Citations (15)
| 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 |
| MD3111G2 (en) * | 2005-10-04 | 2007-02-28 | Технический университет Молдовы | Admittance converter |
| MD3133G2 (en) * | 2005-10-04 | 2007-03-31 | Технический университет Молдовы | Impedance 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 |
| MD3461G2 (en) * | 2007-03-02 | 2008-09-30 | Технический университет Молдовы | Admittance converter |
| MD90Z (en) * | 2008-12-04 | 2010-04-30 | Технический университет Молдовы | Admittance 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 |
| MD638Z (en) * | 2012-09-11 | 2013-12-31 | Технический университет Молдовы | Impedance converter |
| MD649Z (en) * | 2012-11-12 | 2014-01-31 | Технический университет Молдовы | Negative resistance converter |
| MD672Z (en) * | 2013-01-24 | 2014-03-31 | Технический университет Молдовы | Impedance converter |
| MD701Z (en) * | 2013-08-28 | 2014-06-30 | Технический университет Молдовы | Impedance converter |
| MD740Z (en) * | 2013-08-28 | 2014-09-30 | Технический университет Молдовы | Impedance converter |
-
2014
- 2014-11-05 MD MDS20140137A patent/MD888Z/en not_active IP Right Cessation
Patent Citations (15)
| 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 |
| MD3111G2 (en) * | 2005-10-04 | 2007-02-28 | Технический университет Молдовы | Admittance converter |
| MD3133G2 (en) * | 2005-10-04 | 2007-03-31 | Технический университет Молдовы | Impedance 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 |
| MD3461G2 (en) * | 2007-03-02 | 2008-09-30 | Технический университет Молдовы | Admittance converter |
| MD90Z (en) * | 2008-12-04 | 2010-04-30 | Технический университет Молдовы | Admittance 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 |
| MD638Z (en) * | 2012-09-11 | 2013-12-31 | Технический университет Молдовы | Impedance converter |
| MD649Z (en) * | 2012-11-12 | 2014-01-31 | Технический университет Молдовы | Negative resistance converter |
| MD672Z (en) * | 2013-01-24 | 2014-03-31 | Технический университет Молдовы | Impedance converter |
| MD701Z (en) * | 2013-08-28 | 2014-06-30 | Технический университет Молдовы | Impedance converter |
| MD740Z (en) * | 2013-08-28 | 2014-09-30 | Технический университет Молдовы | Impedance converter |
Also Published As
| Publication number | Publication date |
|---|---|
| MD888Y (en) | 2015-02-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| MD420Z (en) | Impedance converter | |
| GB2570229A (en) | Multi-input amplifier with degeneration switching block and low loss bypass function | |
| WO2014068351A3 (en) | Amplification stage and wideband power amplifier | |
| MD3154G2 (en) | Impedance converter | |
| MD248Y (en) | Impedance converter | |
| WO2014113417A3 (en) | Amplifier with switchable common gate gain buffer | |
| WO2014209483A8 (en) | Loss-less frequency dependent dicke-switched radiometer | |
| MD3133G2 (en) | Impedance converter | |
| MD672Z (en) | Impedance converter | |
| MD3689G2 (en) | Impedance converter | |
| GB2564508B (en) | Non-inverting differential amplifier with configurable common-mode output signal and reduced common-mode gain | |
| MD701Y (en) | Impedance converter | |
| MD888Z (en) | Impedance converter | |
| EP3751733A4 (en) | Amplifier, amplifying circuit and phase shifter | |
| MD740Y (en) | Impedance converter | |
| MD195Y (en) | Impedance converter | |
| MD649Y (en) | Negative resistance converter | |
| CN202406283U (en) | Volume regulating circuit for sound system | |
| JP2015119304A (en) | Amplifier circuit | |
| RU155616U1 (en) | RING DIVIDER | |
| MD818Z (en) | Impedance converter | |
| MD638Z (en) | Impedance converter | |
| MY179464A (en) | Magnetic recording disk drive with multiple preapmlifiers and common transmission line with impedance compensation | |
| CN203982787U (en) | A kind of voicefrequency circuit with the complementary zero-frequency sound of phase place property lattice | |
| UA109858U (en) | LOW FREQUENCY FILTER ON C-NEGATRON |
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) |