WO2001020350A1 - Phasendetektor - Google Patents
Phasendetektor Download PDFInfo
- Publication number
- WO2001020350A1 WO2001020350A1 PCT/IB2000/001378 IB0001378W WO0120350A1 WO 2001020350 A1 WO2001020350 A1 WO 2001020350A1 IB 0001378 W IB0001378 W IB 0001378W WO 0120350 A1 WO0120350 A1 WO 0120350A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- diodes
- transformer
- phase detector
- reference signal
- signal
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
- H03D13/00—Circuits for comparing the phase or frequency of two mutually-independent oscillations
- H03D13/005—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which one of the oscillations is, or is converted into, a signal having a special waveform, e.g. triangular
- H03D13/006—Circuits for comparing the phase or frequency of two mutually-independent oscillations in which one of the oscillations is, or is converted into, a signal having a special waveform, e.g. triangular and by sampling this signal by narrow pulses obtained from the second oscillation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
- G01R25/005—Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller, or for passing one of the input signals as output signal
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/44—Modifications of instruments for temperature compensation
Definitions
- the present invention relates to a phase detector which has at least two diodes connected in series, to which a reference signal is supplied via a transformer, and which are connected to a decoupling network, via which an input signal is applied to the diode and inserted
- Output signal is tapped, which corresponds to the phase offset between the input signal and the reference signal.
- phase detector is known from DE 197 03 889 Cl.
- an existing circuit asymmetry is eliminated by changing the working resistances connected in series with the diodes accordingly, for which purpose both working resistors are connected to one another via a variable resistor.
- circuit symmetry can only be set for one temperature.
- the output signal of the known one Phase detector have a temperature-dependent drift.
- the invention is therefore based on the object of specifying a phase detector of the type mentioned at the beginning, the circuit symmetry of which is maintained over the largest possible temperature range and therefore a drift of the output signal of the phase detector remains as low as possible when the ambient temperature fluctuates.
- tunable capacitances and / or tunable inductors are inserted in the feed lines from the diodes to a transformer that feeds a reference signal, and / or the transformer is used to symmetrize the voltages applied to the diodes of the phase detector is provided with a balance with which the voltages at its outputs can be changed.
- the transformer can be set to have the circuit symmetry unchanged over a wide temperature range.
- the decoupling network for the input and the output signal consisting of R / C elements, is connected between the two diodes.
- a load resistor is connected in series with each diode, and both load resistors are connected together at a connection point with a fixed potential - preferably ground.
- the feeder lines with the tunable capacitors and / or inductors inserted therein are connected between the respective diode and its load resistor.
- the only figure in the drawing shows a phase detector which generates an output signal U3 which is dependent on the phase offset between a reference signal U1 and an input signal U2.
- the phase detector has two diodes VI and V2 connected in series, with the same polarity, a load resistor R1, R2 being connected in series with each diode VI, V2. Both load resistors R1 and R2 are connected at a connection point 4, which is at a fixed potential, which is preferably the ground potential.
- the reference signal Ul is at an input 1 of a
- Transmitter ÜT the outputs of which are connected to the diodes VI and V2, namely between the respective diode VI and V2 and the associated load resistor R1, R2.
- the transformer UT serves to distribute the reference signal Ul symmetrically between the two diodes VI and V2.
- the capacitances C1 and C2 inserted into the leads from the transformer UT to the diodes VI and V2 prevent a direct current short-circuit of the diodes VI and V2 by the transformer UT.
- An R / C decoupling network consisting of the two capacitors C3 and C4 and the resistor R4, is connected between the two diodes VI and V2. Between the terminal 2 of the capacitor C3, the other end of which is connected between the two diodes VI and V2, and ground the input signal U2 applied.
- the series connection of the resistor R4 and the capacitance C4 is also present at one end between the two diodes VI and V2 and is connected to ground potential at the other end.
- the voltage that arises across the capacitance C4, between the connection point 3 and ground, is the output signal U3 that is dependent on the phase offset between the reference signal U1 and the input signal U2.
- the diodes VI and V2 are turned on by the reference signal Ul, and according to the phase offset between the reference signal Ul and the
- Input signal U2 capacitance C4 is charged to different levels via resistor R4.
- the charging voltage of the capacitor C4 can then be tapped as a measure of the phase difference between the reference signal U1 and the input signal U2 as the output signal U3.
- the capacitance C3 blocks the input signal U2 in the direct current.
- the circuit can have a certain asymmetry because the voltages UR1, UR2 dropping across the load resistors R1, R2 can be unequally large due to different partial voltages URF1, URF2 at the diodes VI, V2.
- Different partial voltages URF1 and URF2 at the diodes VI and V2 can arise from deviations in the structure of the diodes, through manufacturing asymmetries in the transformer UT or through component and assembly tolerances.
- the following equations (1) and (2) show the temperature dependence of the voltage drops UR1 and UR2 across the two load resistors R1 and R2.
- T is the temperature
- IS is the diode blocking saturation current
- q is the elementary charge
- k is the Boltz constant
- m is a gradation exponent.
- circuit symmetry can only succeed for a constant temperature.
- the circuit symmetry is established in that the partial voltages URF1 and URF2 to be rectified at the diodes VI and V2 are compared to values of the same size, as a result of which both the voltage drops URl and UR2 at the load resistors Rl and R2 and their temperature coefficients are equal become.
- the said balancing of the circuit over a wide temperature range can be achieved in that the capacitances C1 and C2 in the feed lines between the transformer UT and the diodes VI and V2 can be compared.
- adjustable inductors L1 and L2 can also be provided in the feed lines.
- the circuit can also be symmetrized by adjusting the transformer UT, with which the voltages at its outputs can be changed. All three adjustment options, that of the capacitors C1, C2, the inductors L1, L2 and the transformer UT, can be carried out on their own or in combination with one another.
- a comparison of the transformer UT can be made possible by the fact that it has two secondary windings arranged on a coil carrier and that a penetration depth of a ferrite core penetrating both windings can be adjusted by a thread. Depending on whether the ferrite core is located more in the upper or the lower winding, a greater voltage is induced in the upper or the lower winding, as a result of which different voltages URF1, URF2 arise.
- the capacitors C1, C2 and the inductors L1, L2 can be compared by using trimmable concentrated components. If the capacities C1, C2 and inductors L1, L2 are realized by means of planar line structures, the adjustment can be carried out by changing the lines by means of a laser or by soldering or bonding additional line sections.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Networks Using Active Elements (AREA)
- Filters And Equalizers (AREA)
- Power Conversion In General (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00960920A EP1218761A1 (de) | 1999-09-14 | 2000-09-14 | Phasendetektor |
AU73073/00A AU7307300A (en) | 1999-09-14 | 2000-09-14 | Phase detector |
NO20021287A NO20021287L (no) | 1999-09-14 | 2002-03-14 | Fasedetektor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19943956.7 | 1999-09-14 | ||
DE1999143956 DE19943956C1 (de) | 1999-09-14 | 1999-09-14 | Phasendetektor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001020350A1 true WO2001020350A1 (de) | 2001-03-22 |
Family
ID=7921943
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2000/001378 WO2001020350A1 (de) | 1999-09-14 | 2000-09-14 | Phasendetektor |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1218761A1 (de) |
CN (1) | CN1222778C (de) |
AU (1) | AU7307300A (de) |
DE (1) | DE19943956C1 (de) |
NO (1) | NO20021287L (de) |
WO (1) | WO2001020350A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6962201B2 (en) | 2003-02-25 | 2005-11-08 | Halliburton Energy Services, Inc. | Cement compositions with improved mechanical properties and methods of cementing in subterranean formations |
US8223911B2 (en) | 2006-05-23 | 2012-07-17 | Deutsches Elektronen-Synchrotron Desy | Self-compensating drift-free high-frequency phase detector circuit |
CN102969763A (zh) * | 2012-11-09 | 2013-03-13 | 长兴鑫瑞复合材料有限公司 | 一种水冷式蓄电池充电架用立柱 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3922679A (en) * | 1974-08-06 | 1975-11-25 | Us Army | Wide band radio-frequency phase sensor |
EP0023735A1 (de) * | 1979-07-25 | 1981-02-11 | Philips Electronics Uk Limited | Schaltungsanordnung zum Vergleich zweier alternativer Spannungen gleicher Frequenz |
DE19703889C1 (de) * | 1997-02-03 | 1998-02-19 | Bosch Gmbh Robert | Abtast-Phasendetektor |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1946640A1 (de) * | 1968-09-19 | 1970-10-29 | Tavkoezlesi Ki | Breitband-Phasendiskriminator mit grosser Steilheit |
US4810904A (en) * | 1985-07-17 | 1989-03-07 | Hughes Aircraft Company | Sample-and-hold phase detector circuit |
-
1999
- 1999-09-14 DE DE1999143956 patent/DE19943956C1/de not_active Expired - Fee Related
-
2000
- 2000-09-14 CN CN 00815671 patent/CN1222778C/zh not_active Expired - Fee Related
- 2000-09-14 AU AU73073/00A patent/AU7307300A/en not_active Abandoned
- 2000-09-14 EP EP00960920A patent/EP1218761A1/de not_active Withdrawn
- 2000-09-14 WO PCT/IB2000/001378 patent/WO2001020350A1/de not_active Application Discontinuation
-
2002
- 2002-03-14 NO NO20021287A patent/NO20021287L/no not_active Application Discontinuation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3922679A (en) * | 1974-08-06 | 1975-11-25 | Us Army | Wide band radio-frequency phase sensor |
EP0023735A1 (de) * | 1979-07-25 | 1981-02-11 | Philips Electronics Uk Limited | Schaltungsanordnung zum Vergleich zweier alternativer Spannungen gleicher Frequenz |
DE19703889C1 (de) * | 1997-02-03 | 1998-02-19 | Bosch Gmbh Robert | Abtast-Phasendetektor |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6962201B2 (en) | 2003-02-25 | 2005-11-08 | Halliburton Energy Services, Inc. | Cement compositions with improved mechanical properties and methods of cementing in subterranean formations |
US7351279B2 (en) | 2003-02-25 | 2008-04-01 | Halliburton Energy Services, Inc. | Cement compositions with improved mechanical properties and methods of cementing in subterranean formations |
US8223911B2 (en) | 2006-05-23 | 2012-07-17 | Deutsches Elektronen-Synchrotron Desy | Self-compensating drift-free high-frequency phase detector circuit |
CN102969763A (zh) * | 2012-11-09 | 2013-03-13 | 长兴鑫瑞复合材料有限公司 | 一种水冷式蓄电池充电架用立柱 |
CN102969763B (zh) * | 2012-11-09 | 2016-08-03 | 长兴鑫瑞复合材料有限公司 | 一种水冷式蓄电池充电架用立柱 |
Also Published As
Publication number | Publication date |
---|---|
DE19943956C1 (de) | 2001-02-08 |
NO20021287L (no) | 2002-05-14 |
CN1222778C (zh) | 2005-10-12 |
AU7307300A (en) | 2001-04-17 |
EP1218761A1 (de) | 2002-07-03 |
NO20021287D0 (no) | 2002-03-14 |
CN1390306A (zh) | 2003-01-08 |
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