WO2004034662A1 - Schaltungsanordnung zur galvaniisch getrennten signalübertragung - Google Patents
Schaltungsanordnung zur galvaniisch getrennten signalübertragung Download PDFInfo
- Publication number
- WO2004034662A1 WO2004034662A1 PCT/EP2003/008131 EP0308131W WO2004034662A1 WO 2004034662 A1 WO2004034662 A1 WO 2004034662A1 EP 0308131 W EP0308131 W EP 0308131W WO 2004034662 A1 WO2004034662 A1 WO 2004034662A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- voltage
- circuit arrangement
- signal transmission
- output
- transmission part
- Prior art date
Links
- 230000008054 signal transmission Effects 0.000 title claims abstract description 42
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000001939 inductive effect Effects 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 238000004804 winding Methods 0.000 claims description 33
- 239000003990 capacitor Substances 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 12
- 238000009499 grossing Methods 0.000 claims description 11
- 238000005070 sampling Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000004065 semiconductor Substances 0.000 claims description 2
- 238000004146 energy storage Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000005415 magnetization Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 101000836649 Homo sapiens Selenoprotein V Proteins 0.000 description 1
- 102100027056 Selenoprotein V Human genes 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0264—Arrangements for coupling to transmission lines
- H04L25/0266—Arrangements for providing Galvanic isolation, e.g. by means of magnetic or capacitive coupling
Definitions
- the invention relates to a circuit arrangement for the electrically isolated transmission of an analog input variable by means of a signal transmission part, with a voltage input and a voltage output, and in particular also for voltage adaptation between the voltage input and the voltage output of the circuit arrangement.
- an inductive signal transmission part e.g. B. how an AC transformer is constructed for the transmission of electrical energy, for the transmission of any analog control signal (i.e. also a DC voltage) in a simple manner without the supply of auxiliary energy on the input side.
- the inventive configuration of the circuit arrangement not only saves at least one signal conversion circuit, e.g. B. for an analog-to-digital conversion and vice versa, but also a galvanically isolated power supply for the conversion circuit.
- the input-side circuit part 2 preferably consists of two resistors R1, R2, a smoothing capacitor C1 and a diode D1.
- the smoothing capacitor C1 is arranged electrically between the electrical resistor R2 connected in parallel with it and the winding W1 or an inductance TR1 of the signal transmission part 6. Between the capacitor C1 and the winding W1 is the as Rectifying element D1 acting diode connected in the reverse direction with respect to the voltage input.
- a charging resistor R1 is connected upstream of the capacitor C1.
- the resistors R1 and R2 are connected in series and form a voltage divider.
- the output-side circuit part 3 preferably consists of a transistor as the switching element S1 and a semiconductor element with differential inputs, which is designed as a differential amplifier V1.
- the switching element S1 is connected to one of its switching ends 7 with a winding end 9 of the signal transmission part 6 and with its other switching end 8 to ground or 0 volts.
- the differential amplifier V1 is connected with its differential inputs at both control voltage output-side winding ends 9, 10 of the signal transmission part 6.
- the output of the differential amplifier V1 forms the voltage output 5 with the output voltage U3.
- the diode D1 prevents a current from flowing into the winding W1 due to the voltage U1, since it is switched in such a way that it assumes a blocking state during this charging process.
- the resistors R1, R2 form a matching circuit part with which an output voltage can be changed.
- the switching element S1 enables a scanning process.
- the value stored in the capacitor C1 is practically sampled by the switching element S1, preferably from the galvanically isolated side.
- the switching element S1 is closed at the time tO, which is entered in a time axis t in FIG. 2.
- the slope of the second ramp 16 depends on the level of the input voltage U1, as can be seen from equation (1) and equation (5).
- the voltage U1 is decisive in a time window.
- the time window T1 with a start of sampling (tO) and an end of sampling (t1) is necessary because it is in principle a signal sampling, the sampled value (U3) being available after time t1 similar to a sample and hold circuit stands (see Fig. 2).
- the Voltage U1 does not have to be a constant DC voltage, but, like any analog control signal, can also change.
- the sampling frequency with which the switching element is driven must be much higher in relation to the possible signal changes of the analog input signal.
- the sampling frequency can e.g. B. 1 Hz to 100 kHz.
- ⁇ Uc1 is calculated from:
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Dc-Dc Converters (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03807756A EP1543664A1 (de) | 2002-09-24 | 2003-07-24 | Schaltungsanordnung zur galvaniisch getrennten signalübertragung |
US10/529,173 US20060152270A1 (en) | 2002-09-24 | 2003-07-24 | Circuit arrangement for electrically isolated signal transmission |
AU2003251469A AU2003251469A1 (en) | 2002-09-24 | 2003-07-24 | Circuit arrangement for electrically isolated signal transmission |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10244665.2 | 2002-09-24 | ||
DE10244665A DE10244665A1 (de) | 2002-09-24 | 2002-09-24 | Schaltungsanordnung zur galvanisch getrennten Signalübertragung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004034662A1 true WO2004034662A1 (de) | 2004-04-22 |
Family
ID=31969561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2003/008131 WO2004034662A1 (de) | 2002-09-24 | 2003-07-24 | Schaltungsanordnung zur galvaniisch getrennten signalübertragung |
Country Status (5)
Country | Link |
---|---|
US (1) | US20060152270A1 (de) |
EP (1) | EP1543664A1 (de) |
AU (1) | AU2003251469A1 (de) |
DE (1) | DE10244665A1 (de) |
WO (1) | WO2004034662A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102006009506B4 (de) * | 2006-02-27 | 2010-09-23 | Phoenix Contact Gmbh & Co. Kg | Bidirektionaler, galvanisch getrennter Übertragungskanal |
DE102008033428B4 (de) | 2008-07-16 | 2022-12-08 | Vitesco Technologies Germany Gmbh | Verfahren und Anordnung zur Spannungsmessung mit galvanischer Trennung |
US8456267B2 (en) * | 2010-05-14 | 2013-06-04 | Agilent Technologies, Inc. | High-impedance DC-isolating transmission line transformers |
CN105655204B (zh) * | 2016-01-19 | 2018-04-24 | 东南大学 | 一种无源无线微机械开关 |
DE102016119826A1 (de) | 2016-10-18 | 2018-04-19 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Vorrichtung zur potentialgetrennten Lüfteransteuerung sowie Lüftersystem und Ansteuerverfahren |
Citations (4)
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US5103386A (en) * | 1990-01-18 | 1992-04-07 | U.S. Philips Corporation | Flyback converter with energy feedback circuit and demagnetization circuit |
US6144167A (en) * | 1998-09-07 | 2000-11-07 | U.S. Philips Corporation | Circuit arrangement |
US6373726B1 (en) * | 1999-01-28 | 2002-04-16 | Power-One A.G. | Flyback converter with transistorized rectifier controlled by primary side control logic |
US20020125873A1 (en) * | 2001-03-12 | 2002-09-12 | Nissan Motor Co., Ltd. | Power supply circuit for driving power transistor |
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US4455526A (en) * | 1982-06-29 | 1984-06-19 | The United States Of America As Represented By The Secretary Of The Air Force | FET Switching regulator |
US4688160A (en) * | 1985-12-19 | 1987-08-18 | American Telephone And Telegraph Co., At&T Bell Labs | Single ended forward converter with resonant commutation of magnetizing current |
US5430405A (en) * | 1992-08-12 | 1995-07-04 | Lambda Electronics Inc. | Control circuit for converters operating in the discontinuous mode |
US5442534A (en) * | 1993-02-23 | 1995-08-15 | California Institute Of Technology | Isolated multiple output Cuk converter with primary input voltage regulation feedback loop decoupled from secondary load regulation loops |
GB9314391D0 (en) * | 1993-07-12 | 1993-08-25 | Gyrus Medical Ltd | A radio frequency oscillator and an electrosurgical generator incorporating such an oscillator |
US5499184A (en) * | 1994-01-28 | 1996-03-12 | Compaq Computer Corp. | Power switch circuitry for electrically isolating the power switch from a power supply |
US5610804A (en) * | 1994-06-20 | 1997-03-11 | Tdk Corporation | Power supply with dual energy transfer circuits for power factor correction |
US6104622A (en) * | 1997-04-30 | 2000-08-15 | Fidelix Y.K. | Power supply apparatus for reduction of power consumption |
US6049471A (en) * | 1998-02-11 | 2000-04-11 | Powerdsine Ltd. | Controller for pulse width modulation circuit using AC sine wave from DC input signal |
KR100303450B1 (ko) * | 1998-05-29 | 2001-11-30 | 김덕중 | 역률보정제어기 |
US5998885A (en) * | 1998-09-21 | 1999-12-07 | Ford Global Technologies, Inc. | Propulsion system for a motor vehicle using a bidirectional energy converter |
US6490177B1 (en) * | 1998-10-05 | 2002-12-03 | Salvador Figueroa | Resonant power converter with primary-side tuning and zero-current switching |
DE19920625A1 (de) * | 1999-05-06 | 2000-11-09 | Thomson Brandt Gmbh | Schutzschaltung für einen Schalter sowie Schaltnetzteil |
FR2808396B1 (fr) * | 2000-04-27 | 2003-01-31 | St Microelectronics Sa | Circuit de detection de prise de ligne |
GB0031551D0 (en) * | 2000-12-22 | 2001-02-07 | 3D Instr Ltd | Switched mode circuit topologies |
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US6518733B1 (en) * | 2001-08-03 | 2003-02-11 | Linear Technology Corporation | Circuits and techniques for capacitor charging circuits |
DE10164204A1 (de) * | 2001-12-27 | 2003-07-17 | Siemens Linear Motor Systems G | Schutzeinrichtung für Elektromotor mit Sensor und Auswerteeinheit |
US6768656B2 (en) * | 2002-01-28 | 2004-07-27 | Salvador Figueroa | Power converter with input-side resonance and pulse-position demodulation feedback control |
JP4108457B2 (ja) * | 2002-11-27 | 2008-06-25 | シャープ株式会社 | スイッチング電源装置 |
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-
2002
- 2002-09-24 DE DE10244665A patent/DE10244665A1/de not_active Withdrawn
-
2003
- 2003-07-24 US US10/529,173 patent/US20060152270A1/en not_active Abandoned
- 2003-07-24 AU AU2003251469A patent/AU2003251469A1/en not_active Abandoned
- 2003-07-24 WO PCT/EP2003/008131 patent/WO2004034662A1/de not_active Application Discontinuation
- 2003-07-24 EP EP03807756A patent/EP1543664A1/de not_active Withdrawn
Patent Citations (4)
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US5103386A (en) * | 1990-01-18 | 1992-04-07 | U.S. Philips Corporation | Flyback converter with energy feedback circuit and demagnetization circuit |
US6144167A (en) * | 1998-09-07 | 2000-11-07 | U.S. Philips Corporation | Circuit arrangement |
US6373726B1 (en) * | 1999-01-28 | 2002-04-16 | Power-One A.G. | Flyback converter with transistorized rectifier controlled by primary side control logic |
US20020125873A1 (en) * | 2001-03-12 | 2002-09-12 | Nissan Motor Co., Ltd. | Power supply circuit for driving power transistor |
Non-Patent Citations (2)
Title |
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ANDREW RUSSELL: "Lost-cost isolation amplifier suits industrial applications", DESIGN IDEAS, 3 February 2000 (2000-02-03), pages 141 - 142, XP002261986, Retrieved from the Internet <URL:http://www.e-insite.net/ednmag/contents/images/20300di.pdf> [retrieved on 20031118] * |
NATIONAL SEMICONDUCTOR: "Isolation Techniques For Signal Conditioning", APPLICATION NOTE 298, May 1982 (1982-05-01), pages 1 - 8, XP002261987, Retrieved from the Internet <URL:http://www.nalanda.nitc.ac.in/industry/appnotes/Natsemi/AN-298.pdf> [retrieved on 20031118] * |
Also Published As
Publication number | Publication date |
---|---|
EP1543664A1 (de) | 2005-06-22 |
US20060152270A1 (en) | 2006-07-13 |
AU2003251469A1 (en) | 2004-05-04 |
DE10244665A1 (de) | 2004-04-01 |
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