FR2794304A1 - Rectification circuit for a vehicle alternator output, utilizes Graetz bridging circuit in conjunction with varistors at the extremities of the Graetz Bridge - Google Patents
Rectification circuit for a vehicle alternator output, utilizes Graetz bridging circuit in conjunction with varistors at the extremities of the Graetz Bridge Download PDFInfo
- Publication number
- FR2794304A1 FR2794304A1 FR9906973A FR9906973A FR2794304A1 FR 2794304 A1 FR2794304 A1 FR 2794304A1 FR 9906973 A FR9906973 A FR 9906973A FR 9906973 A FR9906973 A FR 9906973A FR 2794304 A1 FR2794304 A1 FR 2794304A1
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- Prior art keywords
- graetz
- bridge
- varistor
- circuit
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/062—Avoiding or suppressing excessive transient voltages or currents
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/125—Avoiding or suppressing excessive transient voltages or currents
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
Abstract
Description
<B><U>PERFECTIONNEMENTS AUX PONTS</U></B><U> REDRESSEURS,<B>NOTAMMENT</B></U> <U>D'ALTERNATEUR<B>DE</B></U> VEHICULE <B><U>AUTOMOBILE.</U></B> La présente invention est relative aux ponts redresseurs et notamment aux ponts redresseurs en sortie des alternateurs de véhicules automobiles. <B> <U> IMPROVEMENTS TO BRIDGES </ U> </ B> <U> RECTIFIERS <B> NOTAMENT </ U> <U> <ALTERNATOR <B> </ B> </ The present invention relates to rectifier bridges and in particular to rectifier bridges at the output of motor vehicle alternators.
Classiquement, ainsi qu'illustré sur la figure<B>1,</B> un tel pont redresseur est un pont de Graetz triphasé constitué de six diodes Zener. Conventionally, as illustrated in FIG. 1, such a bridge rectifier is a three-phase Graetz bridge consisting of six Zener diodes.
En variante également, le pont de Graetz peut être constitué de six transistors MOSFET commandés de façon synchrone. As a variant also, the Graetz bridge may consist of six MOSFET transistors controlled synchronously.
Un problème rencontré avec de tels montages tient en ce qu'ils doivent pouvoir absorber de brusques libérations d'énergie. A problem with such montages is that they must be able to absorb sudden energy releases.
Les composants sont alors dimensionnés en conséquence, ce qui augmente le prix de revient des montages. The components are then sized accordingly, which increases the cost of assemblies.
Un but de l'invention est de proposer un montage de pont redresseur triphasé qui soit d'un faible coût et qui soit capable d'absorber de brusques libérations d'énergie. An object of the invention is to provide a three-phase rectifier bridge assembly which is of low cost and which is capable of absorbing sudden energy releases.
<B>A</B> cet effet, l'invention propose un montage redresseur<B>à</B> pont de Graetz qui comporte des moyens formant varistor aptes<B>à</B> écrêter des sauts de tension entre les différentes entrées de phase. <B> A </ B> With this effect, the invention proposes a rectifier arrangement <B> to </ B> Graetz bridge which comprises varistor means able <B> to </ B> clipping voltage jumps between the different phase inputs.
Selon un mode de réalisation avantageux, des moyens formant varistor sont montés entre les deux extrémités de sortie du pont de Graetz, en parallèle<B>à</B> celui-ci. According to an advantageous embodiment, varistor means are mounted between the two output ends of the Graetz bridge, in parallel <B> to </ B> thereof.
En variante ou en complément, il comporte des moyens formant varistor entre chaque paire d'entrées de phase du pont de Graetz. Alternatively or additionally, it comprises varistor means between each pair of phase inputs of the Graetz bridge.
D'autres caractéristiques et avantages ressortiront encore de la description qui suit. Cette description est purement illustrative et non limitative. Elle doit être lue en regard des dessins annexés sur lesquels<B>:</B> Other features and advantages will become apparent from the following description. This description is purely illustrative and not limiting. It should be read in conjunction with the attached drawings on which <B>: </ B>
<B>-</B> la figure<B>1, déjà</B> analysée, est une représentation schématique d'un pont redresseur conforme<B>à</B> un mode de réalisation connu dans l'état de la technique<B>;</B> <B> - </ B> Figure <B> 1, already </ B> analyzed, is a schematic representation of a bridge rectifier compliant <B> to </ B> an embodiment known in the state of the technique <B>; </ B>
<B>-</B> la figure 2 est une représentation schématique d'un montage conforme<B>à</B> un mode de réalisation possible pour l'invention<B>;</B> <B>-</B> la figure<B>3</B> illustre la caractéristique d'intensité/tension du composant du montage de la figure 2<B>;</B> <B> - </ B> Figure 2 is a schematic representation of a conformal <B> to </ B> one possible embodiment for the invention <B>; </ B> <B> << / B> Figure <B> 3 </ B> illustrates the intensity / voltage characteristic of the assembly component of Figure 2 <B>; </ B>
<B>-</B> la figure 4 illustre une autre variante de réalisation encore possible pour l'invention. <B> - </ B> Figure 4 illustrates another alternative embodiment still possible for the invention.
Le montage sur la figure 2 comporte un pont de Graetz <B>à</B> six diodes, référencées de<B>Dl à D6.</B> The assembly in Figure 2 has a Graetz bridge <B> to </ B> six diodes, referenced from <B> D1 to D6. </ B>
Les trois entrées de phase de ce pont de Graetz ont été référencées par (pl, (p2 et #p3. The three phase inputs of this Graetz bridge have been referenced by (pl, (p2 and # p3.
Les extrémités du pont qui constituent la borne positive et la borne négative entre lesquelles le pont délivre une tension de sortie redressée ont été référencées par 13- et B+# The ends of the bridge which constitute the positive terminal and the negative terminal between which the bridge delivers a rectified output voltage have been referenced by 13- and B + #
Les diodes<B>Dl à D6</B> sont par exemple des diodes Zener ou des diodes haute tension. The diodes <B> D1 to D6 </ B> are, for example, Zener diodes or high voltage diodes.
L'anode de la diode<B>Dl</B> est reliée<B>à</B> la borne 13-, tandis que sa cathode est reliée<B>à</B> l'entrée de phase (pl. The anode of the diode <B> D1 </ B> is connected <B> to </ B> the terminal 13-, while its cathode is connected <B> to </ B> the phase input (pl .
L'anode de la diode<B>D2</B> est reliée<B>à</B> l'entrée de phase (pl, tandis que sa cathode est reliée<B>à</B> la borne 13+. The anode of the diode <B> D2 </ B> is connected <B> to the </ B> phase input (pl, while its cathode is connected <B> to the terminal 13+ .
L'anode de la diode<B>D3</B> est reliée<B>à</B> la borne 13-, tandis que sa cathode est reliée<B>à</B> l'entrée de phase (p2. The anode of diode <B> D3 </ B> is connected <B> to </ B> terminal 13-, while its cathode is connected <B> to </ B> the phase input (p2 .
L'anode de la diode D4 est reliée<B>à</B> l'entrée de phase (p2, tandis que sa cathode est reliée<B>à</B> la borne 13+. The anode of the diode D4 is connected to the phase input (p2), while its cathode is connected to the terminal 13+.
L'anode de la diode<B>D5</B> est reliée<B>à</B> la borne 13-, tandis que sa cathode est reliée<B>à</B> l'entrée de phase (p3. The anode of the diode <B> D5 </ B> is connected <B> to the terminal 13-, while its cathode is connected <B> to the </ B> phase input (p3 .
L'anode de la diode<B>D6</B> est reliée<B>à</B> l'entrée de phase (p3, tandis que sa cathode est reliée<B>à</B> la borne 13+. The anode of diode <B> D6 </ B> is connected <B> to the phase input (p3, while its cathode is connected <B> to </ B> terminal 13+ .
Le montage représenté sur la figure 2 comporte en outre des moyens V formant varistor montés en parallèle aux couples de diodes<B>(Dl, D2), (D3,</B> D4) et<B>(D5,</B> D6), entre son extrémité 13- et son extrémité 13+. The assembly shown in FIG. 2 furthermore comprises means V forming a varistor connected in parallel with pairs of diodes <B> (D1, D2), (D3, </ B> D4) and <B> (D5, </ B > D6), between its end 13- and its end 13+.
Ces moyens formant varistor ont une courbe caractéristique d'intensité/tension du type de celle représentée sur la figure<B>3,</B> avec une tension de claquage Us de l'ordre de 20<B>à 35</B> Volts. Ces moyens formant varistor peuvent être constitués par un composant varistor ou encore par deux diodes Zener montées dos<B>à</B> dos. These varistor means have a characteristic intensity / voltage curve of the type shown in FIG. 3, with a breakdown voltage Us of the order of 20 <B> to 35 </ B>. > Volts. These varistor means can be constituted by a varistor component or by two Zener diodes mounted back to the back.
Comme on l'aura compris, avec un tel montage, les sauts de tension sont écrêtés par les moyens V formant varistor. As will have been understood, with such an assembly, the voltage jumps are clipped by means V forming varistor.
D'autres variantes de réalisation peuvent bien entendu être envisagées. Other embodiments may of course be considered.
En particulier, il peut également être prévu des moyens formant varistor montés entre les différentes entrées de phase. In particular, it can also be provided varistor means mounted between the different phase inputs.
C'est ce qui est illustré sur la figure 4, sur laquelle il a été représenté un pont de Graetz constitué de six diodes<B>Dl à D6</B> qui comporte des moyens Vl formant varistor montés entre les entrées de phase (pl et (p2, des moyens V2 formant varistor montés entre les entrées de phase (p2 et (p3, ainsi que des moyens V3 formant varistor montés entre les entrées de phase des moyens Vl formant varistor montés entre les entrées de phase (p3 et (pl. This is illustrated in FIG. 4, on which a Graetz bridge consisting of six diodes <B> D1 to D6 </ B> has been represented, which comprises means VI forming a varistor mounted between the phase inputs ( pl and (p2) means V2 forming a varistor mounted between the phase inputs (p2 and (p3, as well as means V3 forming a varistor mounted between the phase inputs of the varistor forming means V1 connected between the phase inputs (p3 and pl.
En variante encore, les diodes<B>Dl à D6</B> peuvent être remplacées par des interrupteurs commandés, tels que des transistors de type MOSFET. Les ponts redresseurs du type de ceux qui viennent d'être décrits As a further variant, the diodes <B> D1 to D6 </ B> may be replaced by controlled switches, such as MOSFET transistors. Rectifier bridges of the type just described
sont avantageusement des ponts redresseurs d'alternateurs de véhicule automobile ou des ponts redresseurs de machines électriques "alterno- démarreurs", dest <B>à</B> dire aptes<B>à</B> fonctionner alternativement comme moteur de démarreur ou comme alternateur.are advantageously rectifier bridges motor vehicle alternators or rectifiers bridges of electrical machines "alternator-starters", dest <B> to </ B> say able <B> to </ B> alternately operate as a starter motor or as an alternator.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9906973A FR2794304B1 (en) | 1999-05-31 | 1999-05-31 | IMPROVEMENTS IN BRIDGE RECTIFIERS, IN PARTICULAR OF MOTOR VEHICLE ALTERNATOR |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9906973A FR2794304B1 (en) | 1999-05-31 | 1999-05-31 | IMPROVEMENTS IN BRIDGE RECTIFIERS, IN PARTICULAR OF MOTOR VEHICLE ALTERNATOR |
Publications (2)
Publication Number | Publication Date |
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FR2794304A1 true FR2794304A1 (en) | 2000-12-01 |
FR2794304B1 FR2794304B1 (en) | 2007-10-05 |
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Application Number | Title | Priority Date | Filing Date |
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FR9906973A Expired - Lifetime FR2794304B1 (en) | 1999-05-31 | 1999-05-31 | IMPROVEMENTS IN BRIDGE RECTIFIERS, IN PARTICULAR OF MOTOR VEHICLE ALTERNATOR |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB769882A (en) * | 1954-06-30 | 1957-03-13 | Westinghouse Electric Int Co | Improvements in or relating to current collecting means for dynamo-electric machines |
DE2653137A1 (en) * | 1976-11-23 | 1978-05-24 | Licentia Gmbh | MULTI-PHASE RECTIFIER |
EP0050034A1 (en) * | 1980-10-14 | 1982-04-21 | Power Integrity Corporation | Transient surge protective circuit |
JPH01185166A (en) * | 1988-01-13 | 1989-07-24 | Tokyo Electric Co Ltd | Inverter apparatus |
EP0561149A2 (en) * | 1992-02-20 | 1993-09-22 | Siemens Aktiengesellschaft | Arrangement for current supply of an electronic unit from a three phase network |
US5565751A (en) * | 1994-09-28 | 1996-10-15 | Trinity Industries, Inc. | Enhanced traction system for trolleybuses, powered from a 600-volt direct current power line |
US5646810A (en) * | 1995-10-03 | 1997-07-08 | Funke; James | Transient voltage surge suppression and electrical noise attenuation circuit |
EP0792007A2 (en) * | 1996-02-20 | 1997-08-27 | Eaton Corporation | Universal power module |
-
1999
- 1999-05-31 FR FR9906973A patent/FR2794304B1/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB769882A (en) * | 1954-06-30 | 1957-03-13 | Westinghouse Electric Int Co | Improvements in or relating to current collecting means for dynamo-electric machines |
DE2653137A1 (en) * | 1976-11-23 | 1978-05-24 | Licentia Gmbh | MULTI-PHASE RECTIFIER |
EP0050034A1 (en) * | 1980-10-14 | 1982-04-21 | Power Integrity Corporation | Transient surge protective circuit |
JPH01185166A (en) * | 1988-01-13 | 1989-07-24 | Tokyo Electric Co Ltd | Inverter apparatus |
EP0561149A2 (en) * | 1992-02-20 | 1993-09-22 | Siemens Aktiengesellschaft | Arrangement for current supply of an electronic unit from a three phase network |
US5565751A (en) * | 1994-09-28 | 1996-10-15 | Trinity Industries, Inc. | Enhanced traction system for trolleybuses, powered from a 600-volt direct current power line |
US5646810A (en) * | 1995-10-03 | 1997-07-08 | Funke; James | Transient voltage surge suppression and electrical noise attenuation circuit |
EP0792007A2 (en) * | 1996-02-20 | 1997-08-27 | Eaton Corporation | Universal power module |
Non-Patent Citations (1)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 13, no. 470 (E - 835) 24 October 1989 (1989-10-24) * |
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FR2794304B1 (en) | 2007-10-05 |
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