DE102007040063A1 - Active bridge circuit for exciting bipolar current to produce periodic, modulated magnetic field that is utilized for treatment in traumatology field, has control units and resistors that are connected to ground terminal contact of bridge - Google Patents
Active bridge circuit for exciting bipolar current to produce periodic, modulated magnetic field that is utilized for treatment in traumatology field, has control units and resistors that are connected to ground terminal contact of bridge Download PDFInfo
- Publication number
- DE102007040063A1 DE102007040063A1 DE200710040063 DE102007040063A DE102007040063A1 DE 102007040063 A1 DE102007040063 A1 DE 102007040063A1 DE 200710040063 DE200710040063 DE 200710040063 DE 102007040063 A DE102007040063 A DE 102007040063A DE 102007040063 A1 DE102007040063 A1 DE 102007040063A1
- Authority
- DE
- Germany
- Prior art keywords
- channel mosfet
- control units
- resistors
- bridge circuit
- bridge
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/30—Single-ended push-pull [SEPP] amplifiers; Phase-splitters therefor
- H03F3/3081—Duplicated single-ended push-pull arrangements, i.e. bridge circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/6871—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor
- H03K17/6874—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the output circuit comprising more than one controlled field-effect transistor in a symmetrical configuration
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
- H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
- H03K17/687—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors
- H03K17/6877—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being field-effect transistors the control circuit comprising active elements different from those used in the output circuit
Abstract
Description
Die Erfindung betrifft eine aktive Brückenschaltung für bipolare Stromerregung, periodische, modulierte Magnetfelder zu erzeugen, besonders zum Zwecke der Magnetfeldbehandlungen in der Traumatologie, Orthopädie, Neurologie, Dermatologie, Rehabilitation, sowie im Sport.The The invention relates to an active bridge circuit for bipolar current excitation, periodic, modulated magnetic fields too generate, especially for the purpose of magnetic field treatments in traumatology, Orthopedics, neurology, dermatology, rehabilitation, as well in sports.
Die vorgegebene aktive Brückenschaltung soll einerseits spezifische, sinus- und impulsförmige, bipolare Stromerregung für die Applikatorspulen der Behandlungsgeräte erzeugen, andererseits die Stromversorgungsverfahren vereinfachen.The given active bridge circuit is on the one hand specific, sinusoidal and pulsed, bipolar current excitation for generate the applicator coils of the treatment equipment, on the other hand simplify the power supply procedures.
Die mit derartigen Stromversorgungsverfahren ermöglichte Erregung ist erforderlich, damit die Schaltung mit einziger Gleichspannung versorgt ist und verschiedene Signalkonfigurationen beliebig erzeugt werden. Bezüglich der medizinischen Geräte ist es von Bedeutung, ein separiertes, stabilisiertes Sicherheitsnetzgerät zu verwenden.The with such power supply method allowed arousal is required to allow the circuit with single DC voltage is supplied and various signal configurations generated arbitrarily become. Regarding the medical equipment is it is important, a separate, stabilized safety power supply to use.
Es sind moderne Leistungsverstärker gemäß dem Oberbegriff des Schutzanspruchs 1 bekannt, die primär gestatten, bipolare Stromerregung, insbesondere bei dem Antrieb der Spulen von Lautsprechern und von analogen Instrumenten zu realisieren. Wie in der bekannten Fachliteratur ersichtlich ist, ermöglichen diese Vorrichtungen die Stromerregung im Tonfrequenzbereich und in niedrigem Frequenzbereich zu erzeugen. Die üblichen Gegentaktverstärker, die im allgemeinen mit Komplementärtransistoren aufgebaut sind, symmetrische Versorgungspannung brauchen. Bei den meistverbreiteten Lösungen wird im Gerät ein symmetrisches Netzteil oder ein Spannungswandler verwendet.It are modern power amplifiers according to the Preamble of the protection claim 1 are known, which allow primarily bipolar current excitation, especially in the drive of the coils of loudspeakers and analogue instruments. As can be seen in the known literature, allow these devices the current excitation in the audio frequency range and to generate in low frequency range. The usual Push-pull amplifiers, generally with complementary transistors are constructed, need symmetrical supply voltage. Both most common solutions becomes symmetrical in the device Power supply or a voltage converter used.
Ein
klassischer Verstärker der Betriebsart B, mit symmetrischer
Stromversorgung ist z. B. im Buch von
Eine
Brückenschaltung ist in Khandpur (2005):
Eine DC-Signalübertragung ist auch nötig, die Symmetrie und die Eliminierung der Drift sind wichtig. Die oben besprochene Schaltungen waren nur begrenzt in der Lage die mit beliebigen Hüllkurven modulierte, steile Impulsserien, in einem gesteuerten Schaltbetrieb mit niedriger Verzerrung zu erzeugen.A DC signal transmission is also necessary, the symmetry and the elimination of drift are important. The above discussed Circuits were limited in their ability with arbitrary envelopes modulated, steep impulse series, in a controlled switching mode with low distortion.
Der Erfindung liegt die Aufgabe zugrunde, mit einer zweckmäßigen Konstruktion die oben erwähnten Nachteile zu eliminieren und die Stromerregung der Applikatorspule zur impulsförmigen Magnetfelderzeugung durch eine aktive Brückenschaltung ermöglichen.Of the Invention is based on the object with a functional Construction to eliminate the above-mentioned disadvantages and the current excitation of the applicator coil to the pulse-shaped Magnetic field generation by an active bridge circuit enable.
Die Aufgabe wird mit einer gattungsgemäßen Schaltung durch die kennzeichnenden Merkmale der Ansprüche 1 und 2 gelöst.The Task is with a generic circuit by the characterizing features of claims 1 and 2 solved.
Die mit der Erfindung erzielten Vorteile bestehen insbesondere darin, dass die vier Elemente einer für Analogsignalübertragung konstruierten, symmetrischen Brückenschaltung durch vier Steuerstufen, analog und digital gleichzeitig gesteuert ist und durch eine, zu den Ausgängen der Brücke gekoppelte Applikatorspule, geeignete Magnetfelderzeugung realisiert ist.The particular advantages of the invention are that the four elements one for analog signal transmission constructed, symmetrical bridge circuit through four Control stages, analog and digital simultaneously controlled and through one, coupled to the outputs of the bridge Applicator coil, suitable magnetic field generation is realized.
Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben.One Embodiment of the invention is in the drawings and will be described in more detail below.
Es zeigenIt demonstrate
Die
Auf
der
Die
Funktion der aktiven Brückenschaltung wird im durch die
Auf
der
Auf
der
Die Vorteile dieser aktiven Brückenschaltung bestehen in ihrer Steuerbarkeit, und Wirtschaftlichket. Für die symmetrische Betriebsart braucht diese Schaltung nur einzige, positive Speisespannung. Durch ihre Anordnung, zweckmäßig ermöglicht die Steuerung der Applikatorspule mit zahlreichen Signalvariationen, die eine besondere physiologische Wirksamkeit der Magnetfeldbehandlung aufzeigen können. Die Neuheit dieser Anordnung besteht noch in ihrer komplexen, analog- und digitalen Steuerung, sowie in ihrem eigentlichen „common-mode" Steuerungsbetrieb, der eine invertierende Stufe erspart und stabile Funktion versichert.The Advantages of this active bridge circuit consist in their Controllability, and economy. For the symmetrical Operating mode, this circuit needs only single, positive supply voltage. By their arrangement, appropriate allows the control of the applicator coil with numerous signal variations, the one particular physiological effectiveness of the magnetic field treatment can show. The novelty of this arrangement exists still in their complex, analog and digital control, as well in their actual "common-mode" control mode, which saves an inverting stage and ensures stable operation.
ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- - US 7009454 [0005] - US 7009454 [0005]
Zitierte Nicht-PatentliteraturCited non-patent literature
- - Patrick D. van der Puije (2002) "Telecommunication circuit design". John Wiley & Sons, Inc. N. Y. /61. p/ [0005] - Patrick D. van der Puije (2002) "Telecommunication circuit design". John Wiley & Sons, Inc. NY / 61. p / [0005]
- - "Biomedical instrumentation". McGraw-Hill. New York. 132. p [0006] - Biomedical instrumentation. McGraw-Hill. New York. 132. p [0006]
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710040063 DE102007040063B4 (en) | 2007-08-24 | 2007-08-24 | Active bridge circuit for bipolar current excitation to generate periodic magnetic fields |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200710040063 DE102007040063B4 (en) | 2007-08-24 | 2007-08-24 | Active bridge circuit for bipolar current excitation to generate periodic magnetic fields |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102007040063A1 true DE102007040063A1 (en) | 2009-02-26 |
DE102007040063B4 DE102007040063B4 (en) | 2012-12-13 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE200710040063 Active DE102007040063B4 (en) | 2007-08-24 | 2007-08-24 | Active bridge circuit for bipolar current excitation to generate periodic magnetic fields |
Country Status (1)
Country | Link |
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DE (1) | DE102007040063B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011140145A3 (en) * | 2010-05-03 | 2012-01-12 | Qualcomm Incorporated | Noise-canceling for differential amplifiers requiring no external matching |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5280196A (en) * | 1992-04-08 | 1994-01-18 | Nec Corporation | Magnetic head drive circuit |
US7009454B2 (en) | 2004-01-20 | 2006-03-07 | Anadigics Inc. | Method and apparatus for optimization of amplifier with adjustable output range |
-
2007
- 2007-08-24 DE DE200710040063 patent/DE102007040063B4/en active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5280196A (en) * | 1992-04-08 | 1994-01-18 | Nec Corporation | Magnetic head drive circuit |
US7009454B2 (en) | 2004-01-20 | 2006-03-07 | Anadigics Inc. | Method and apparatus for optimization of amplifier with adjustable output range |
Non-Patent Citations (2)
Title |
---|
"Biomedical instrumentation". McGraw-Hill. New York. 132. p |
Patrick D. van der Puije (2002) "Telecommunication circuit design". John Wiley & Sons, Inc. N. Y. /61. p/ |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011140145A3 (en) * | 2010-05-03 | 2012-01-12 | Qualcomm Incorporated | Noise-canceling for differential amplifiers requiring no external matching |
US8310309B2 (en) | 2010-05-03 | 2012-11-13 | Qualcomm, Incorporated | Noise-canceling for differential amplifiers requiring no external matching |
Also Published As
Publication number | Publication date |
---|---|
DE102007040063B4 (en) | 2012-12-13 |
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Representative=s name: ZACCO DR. PETERS UND PARTNER, 80335 MUENCHEN, DE Representative=s name: ZACCO DR. PETERS UND PARTNER, DE Representative=s name: ZACCO PATENTANWALTS- UND RECHTSANWALTSGESELLSC, DE |
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