EP1433245A1 - Convertisseur de tension - Google Patents
Convertisseur de tensionInfo
- Publication number
- EP1433245A1 EP1433245A1 EP02800211A EP02800211A EP1433245A1 EP 1433245 A1 EP1433245 A1 EP 1433245A1 EP 02800211 A EP02800211 A EP 02800211A EP 02800211 A EP02800211 A EP 02800211A EP 1433245 A1 EP1433245 A1 EP 1433245A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- transformer
- primary
- voltage
- converter
- converter according
- 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.)
- Withdrawn
Links
- 239000003990 capacitor Substances 0.000 claims abstract description 24
- 238000004804 winding Methods 0.000 claims description 25
- 238000001914 filtration Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000004907 flux Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- UKGJZDSUJSPAJL-YPUOHESYSA-N (e)-n-[(1r)-1-[3,5-difluoro-4-(methanesulfonamido)phenyl]ethyl]-3-[2-propyl-6-(trifluoromethyl)pyridin-3-yl]prop-2-enamide Chemical compound CCCC1=NC(C(F)(F)F)=CC=C1\C=C\C(=O)N[C@H](C)C1=CC(F)=C(NS(C)(=O)=O)C(F)=C1 UKGJZDSUJSPAJL-YPUOHESYSA-N 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- H02M3/00—Conversion of DC power input into DC power output
- H02M3/02—Conversion of DC power input into DC power output without intermediate conversion into AC
- H02M3/04—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters
- H02M3/10—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
- H02M7/21—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 using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M7/2176—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 using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only comprising a passive stage to generate a rectified sinusoidal voltage and a controlled switching element in series between such stage and the output
Definitions
- the invention relates to a voltage converter comprising two input terminals, between which are arranged at least one current limiter, a switch controlled by a control device in synchronization with the supply voltage and a storage capacitor and of which the two output terminals are taken from the storage capacitor.
- the current limiter consists of a resistive element, that is to say a resistor.
- the presence of a current limiter placed in series with the controlled switch and with the storage capacitor is necessary because these voltage converters must lower the network voltage, for example 230 V, to a relatively low voltage, generally close to 12 V.
- the current limiter is notably dimensioned so that the intensity of the current flowing through the controlled switch does not exceed an admissible value during the entire duration of conduction of this switch. Heat losses in the resistor used as current limiter are proportional to the square of the rms value of the current drawn by the converter on the network. Any reduction in this current, for the same useful power value, therefore appreciably improves the efficiency of the converter.
- the invention proposes to reduce this current very significantly.
- the converter according to the invention is characterized in that the current limiter consists of at least the primary of a transformer, the secondary of which supplies a rectifier, the output terminals of which are connected to the output terminals of the converter. .
- the transformer comprises at least one primary winding, a magnetic circuit and a secondary winding, the outputs of which are connected to the inputs of the rectifier, the outputs of the rectifier being connected in parallel to the capacitor. Due to this connection, the transformer does not require galvanic isolation between the windings. On the other hand, it is interesting that the transformer has excellent coupling between the windings. According to one embodiment, the enamelled wires of the primary and secondary are wound simultaneously. This is not a disadvantage since a weak insulation is sufficient.
- the current limiter, the switch and the capacitor can be arranged in series connection, the voltage applied between the input terminals being alternately rectified.
- the current limiter can also be arranged in series with a bridge rectifier, the outputs of which are connected to the switch and to the capacitor, connected in series, the voltage applied between the input terminals being alternating.
- the primary and secondary windings have the same number of turns.
- transformers of ratio 1 are always used to allow galvanic isolation between two circuits, while the converter according to the embodiments of the invention uses a transformer of ratio 1 and at low isolation, breaking with the habits of a person skilled in the art.
- the ratio of the number of turns between secondary and primary of the transformer is less than 1, for example 0.5.
- a greater voltage drop will be obtained across the terminals of the primary, which is all the more favorable for the reduction in the protective resistance. It is not excluded that such a choice allows, in certain cases, the suppression of the protective resistance, this being necessary only when the rectified input voltage has a very high amplitude compared to the voltage Release.
- the primary winding of the transformer can be used as an inductor for filtering disturbances conducted on the mains.
- Figure 1 is an electrical diagram of the converter according to a first embodiment.
- Figure 2 is an electrical diagram of the converter according to a second embodiment.
- the voltage converter shown has two input terminals A and B to which a rectified alternating voltage U, for example the mains voltage.
- the converter comprises an energy storage capacitor 1 supplied by a switch 2, in this case a MOS or field effect transistor controlled by a control block 3 and in series with the primary 51 of a transformer 5 and a current limiting resistor 6.
- the control unit 3 is produced as in the prior art, for example as described in patent EP 0 921 628. It controls the opening and closing of the switch 2 by the grid of the transistor 2 whose drain is connected to the primary 51 of the transformer and the source is connected to the capacitor 1, that is to say at the output S of the converter.
- the transformer 5 further comprises a magnetic circuit 52 and a secondary winding 53, the outputs of the secondary winding being connected to the inputs of a rectifier 7 whose outputs are connected in parallel to the capacitor 1.
- the converter supplies a user 4 shown symbolically .
- the load 4 is in fact constituted by a voltage regulator supplying a resistive load and therefore that it absorbs a constant current 10, even if the voltage across the terminals of the capacitor 1 varies within a given range.
- the current is impulse, of amplitude ilM. If we assume the identical conduction times between an assembly according to the invention and an assembly according to art previous, and therefore the same time course of the current, then an average value il reduced by half simply requires a value half for ilM, which means that the effective value II of il is also divided by two, compared to a device according to the prior art. This reduction ILM is obtained as a first approximation by doubling the limiting resistance.
- the device according to the invention therefore halves the thermal losses in the limiting resistor 6.
- the transformer used would have a ratio of the number of turns less than 1, for example 0.5, while retaining an excellent coupling between windings, which is often more difficult to achieve, we will benefit more pronounced effects.
- the primary current in the transformer it is thus possible to obtain a ratio of 1 to 3 between an assembly according to the invention and an assembly according to the prior art and a greater voltage drop across the terminals of the primary. , which is all the more favorable for reducing the protective resistance. This is why, in certain cases, it is possible to consider removing the current limiting resistor 6.
- a transformer with a ratio of 0.5 can be produced with excellent coupling using two primary windings and two secondary windings with the same number of turns and wound simultaneously, the two primary windings being in series and the two secondary windings in parallel.
- the detailed operation of the converter according to the invention involves the energy stored in the transformer during the conduction of the switch and restored when the latter is opened, but this does not add to the understanding of the invention.
- an effective input current of 200 mA is obtained.
- a second embodiment of the converter differs in that the full-wave rectifier assembly (diodes in Graetz bridge), which in the previous case was placed upstream of A and B without appearing in FIG. 1 , is this time inserted in the series assembly to supply the branch formed by the switch (2) and the capacitor (1).
- This rectifier assembly bears the reference 8. The point B 'is therefore not directly connected to ground.
- a control block controls the switch 2.
- the primary current in this one is this time bidirectional, a complete hysteresis cycle is described during each period of the network, and the flux in the magnetic circuit of the transformer can vary between the negative value and the positive value of the saturation flux instead of varying between the positive value of the saturation flux and the positive value of the residual flux.
- the transformer sheets therefore see their operation optimized, which eventually reduces their dimensions.
- the operation of the transformer primary having become perfectly bidirectional, it will also be possible to make use of its primary inductance to carry out the filtering of mains disturbances in conduit mode imposed by the standards. This filtering is in fact conventionally carried out by an LC circuit.
- this filtering capacitor C is much lower than that of the storage capacitor 1: for example, 220 nF is used for the filtering capacitor C and 2200 ⁇ F for the capacitor 1.
- an additional advantage of the invention is to allow good filtering of the sector without the need to resort to an additional inductor.
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Rectifiers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0112672 | 2001-10-02 | ||
FR0112672A FR2830383B1 (fr) | 2001-10-02 | 2001-10-02 | Convertisseur de tension |
PCT/IB2002/003968 WO2003030344A1 (fr) | 2001-10-02 | 2002-09-24 | Convertisseur de tension |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1433245A1 true EP1433245A1 (fr) | 2004-06-30 |
Family
ID=8867847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02800211A Withdrawn EP1433245A1 (fr) | 2001-10-02 | 2002-09-24 | Convertisseur de tension |
Country Status (9)
Country | Link |
---|---|
US (1) | US7075805B2 (fr) |
EP (1) | EP1433245A1 (fr) |
JP (1) | JP4261354B2 (fr) |
CN (1) | CN100397764C (fr) |
AU (1) | AU2002334320B2 (fr) |
CA (1) | CA2463065A1 (fr) |
FR (1) | FR2830383B1 (fr) |
PL (1) | PL213666B1 (fr) |
WO (1) | WO2003030344A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2869470B1 (fr) * | 2004-04-22 | 2007-02-02 | Somfy Soc Par Actions Simplifi | Installation electrique d'alimentation d'un actionneur munie d'un dispositif de secours |
FR2901061B1 (fr) * | 2006-05-12 | 2008-11-14 | Centre Nat Rech Scient | Convertisseur d'onde electromagnetique en tension continue |
EP2219205B1 (fr) * | 2009-02-17 | 2014-06-04 | Solvix GmbH | Dispositif d'alimentation électrique pour traitement par plasma |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1591630C3 (de) * | 1967-01-12 | 1974-03-28 | Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm | Schaltungsanordnung zur Spannungsregelung für Stromversorgungsgeräte der Nachrichtentechnik, insbesondere der Fernmeldetechnik |
US4001668A (en) | 1973-11-16 | 1977-01-04 | Schick Incorporated | Electric shaver operable from a wide range of supply voltages |
US4432032A (en) * | 1980-01-25 | 1984-02-14 | Exxon Research And Engineering Company | Auxiliary voltage snubber circuit |
JPS56115141A (en) | 1980-02-14 | 1981-09-10 | Matsushita Electric Works Ltd | Automatic voltage changing type charger |
US4641233A (en) | 1985-05-03 | 1987-02-03 | Eaton Corporation | AC to DC converter with voltage regulation |
US4709322A (en) * | 1985-07-26 | 1987-11-24 | Fred Mirow | High efficiency transformerless AC/DC converter |
NL8503479A (nl) * | 1985-12-18 | 1987-07-16 | Philips Nv | Voedingsschakeling. |
US4731719A (en) * | 1986-11-19 | 1988-03-15 | Linear Technology Corporation | Current boosted switching regulator |
GB2203003A (en) * | 1987-04-04 | 1988-10-05 | Spectrol Reliance Ltd | Power supply circuit |
US4939632A (en) * | 1989-02-14 | 1990-07-03 | U.S. Philips Corporation | Power supply circuit |
DE4008663C1 (fr) * | 1990-03-17 | 1991-05-02 | Braun Ag, 6000 Frankfurt, De | |
DE4212041A1 (de) * | 1992-04-10 | 1993-10-14 | Braun Ag | Elektronisches Schaltnetzteil |
JPH08275525A (ja) * | 1995-04-03 | 1996-10-18 | Toshiba Corp | 電源装置および電源システム |
TW332369B (en) | 1995-09-18 | 1998-05-21 | Thomson Consumer Electronics | Off-line phase control low-power power supply |
US5757628A (en) * | 1996-01-31 | 1998-05-26 | Tohoku Ricoh Co., Ltd. | Stabilized high frequency switching power supply with suppressed EMI noise |
JP3500868B2 (ja) * | 1996-09-20 | 2004-02-23 | ソニー株式会社 | スイッチングレギュレータ |
FR2771865B1 (fr) | 1997-12-02 | 2000-02-04 | Somfy | Dispositif de conversion d'une tension alternative en une tension continue |
JP2000260640A (ja) * | 1999-03-12 | 2000-09-22 | Cosel Co Ltd | 出力トランス |
US6061259A (en) * | 1999-08-30 | 2000-05-09 | Demichele; Glenn | Protected transformerless AC to DC power converter |
-
2001
- 2001-10-02 FR FR0112672A patent/FR2830383B1/fr not_active Expired - Fee Related
-
2002
- 2002-09-24 US US10/490,086 patent/US7075805B2/en not_active Expired - Fee Related
- 2002-09-24 EP EP02800211A patent/EP1433245A1/fr not_active Withdrawn
- 2002-09-24 AU AU2002334320A patent/AU2002334320B2/en not_active Ceased
- 2002-09-24 JP JP2003533423A patent/JP4261354B2/ja not_active Expired - Fee Related
- 2002-09-24 PL PL368075A patent/PL213666B1/pl unknown
- 2002-09-24 CN CNB028196058A patent/CN100397764C/zh not_active Expired - Fee Related
- 2002-09-24 CA CA002463065A patent/CA2463065A1/fr not_active Abandoned
- 2002-09-24 WO PCT/IB2002/003968 patent/WO2003030344A1/fr active IP Right Grant
Non-Patent Citations (1)
Title |
---|
See references of WO03030344A1 * |
Also Published As
Publication number | Publication date |
---|---|
JP2005505225A (ja) | 2005-02-17 |
CA2463065A1 (fr) | 2003-04-10 |
FR2830383B1 (fr) | 2004-09-10 |
CN100397764C (zh) | 2008-06-25 |
CN1565073A (zh) | 2005-01-12 |
US7075805B2 (en) | 2006-07-11 |
PL368075A1 (en) | 2005-03-21 |
JP4261354B2 (ja) | 2009-04-30 |
WO2003030344A1 (fr) | 2003-04-10 |
US20040252527A1 (en) | 2004-12-16 |
AU2002334320B2 (en) | 2007-03-22 |
FR2830383A1 (fr) | 2003-04-04 |
PL213666B1 (pl) | 2013-04-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20040406 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR |
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AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
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RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: SOMFY SAS |
|
17Q | First examination report despatched |
Effective date: 20101029 |
|
R17C | First examination report despatched (corrected) |
Effective date: 20101229 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20140220 |