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WO2006112698A2 - Bloc d'alimentation rechargeable - Google Patents

Bloc d'alimentation rechargeable Download PDF

Info

Publication number
WO2006112698A2
WO2006112698A2 PCT/NL2006/000201 NL2006000201W WO2006112698A2 WO 2006112698 A2 WO2006112698 A2 WO 2006112698A2 NL 2006000201 W NL2006000201 W NL 2006000201W WO 2006112698 A2 WO2006112698 A2 WO 2006112698A2
Authority
WO
WIPO (PCT)
Prior art keywords
supercapacitor
converter
power supply
rechargeable power
battery
Prior art date
Application number
PCT/NL2006/000201
Other languages
English (en)
Other versions
WO2006112698A3 (fr
Inventor
Simon Den Uijl
Crijn Bouman
Wouter Smit
Original Assignee
Technische Universiteit Delft
Epyon B.V. I.O.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Technische Universiteit Delft, Epyon B.V. I.O. filed Critical Technische Universiteit Delft
Publication of WO2006112698A2 publication Critical patent/WO2006112698A2/fr
Publication of WO2006112698A3 publication Critical patent/WO2006112698A3/fr

Links

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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering
    • H02J7/345—Parallel operation in networks using both storage and other DC sources, e.g. providing buffering using capacitors as storage or buffering devices

Definitions

  • the invention relates to a rechargeable power supply suitable to be used in or in combination with a battery- operated device.
  • a universal example is the mobile telephone, which on the one hand is very convenient to use but on the other hand, can cause the user annoyance for a number of reasons. It is especially annoying when the battery of the device is almost empty while one still wishes to make one or more calls. It is an even greater nuisance when during a conversation the battery ceases to fulfil its essential function of keeping the mobile telephone operational.
  • the mobile telephone is only one example.
  • the object of the invention is to provide a rechargeable power supply that can be recharged fast and is operational for a relatively long time, and with which the annoyances referred to above can be limited.
  • a rechargeable power supply for a battery-operated notebook computer which is provided with two serially connected supercapacitors and also with two serially connected DC-DC converters.
  • the supercapacitors are connected to the connecting line of the two DC- DC converters in such a way, that either the supercapacitors are fed from the first DC-DC converter, or the notebook computer is via the second DC-DC converter fed by the super- capacitors.
  • the two DC-DC converters are not in operation simultaneously. It has been shown, that a rechargeable power supply built around one or more supercapacitors can be recharged in approximately 5-120 seconds to a functional energy level so as to, for example in the case of the mobile telephone, provide an additional speaking time of approximately 30 minutes .
  • the rechargeable power supply according to invention has at least a first and a second DC-DC converter connected in series, and is characterized in that the supercapacitor is connectable to an entry of the first DC-DC converter and in that the device to be fed is connectable to an exit of the second DC-DC converter.
  • the supercapacitor' s voltage decreases with the approach of depletion.
  • the voltage would at some point drop below the minimally required voltage demanded by the device to be fed.
  • the above-mentioned measure enables the supercapacitor to feed said device longer.
  • the first DC-DC converter is therefore a step-up-converter, while the second DC-DC converter is a step-down-converter.
  • the rechargeable power supply is characterized, in that a battery is provided, which in relation to the supercapacitor discharges slowly, and may or may not be directly connected to the supercapacitor.
  • the supercapacitor referred to in the present invention comprises an electrolyte and electrodes, wherein the electrodes are selected from the group comprising activated carbon powders, carbon nanochannels, metal oxides, composite materials containing carbon (such as polypyrrole) and conductive polymers.
  • the electrodes are selected from the group comprising activated carbon powders, carbon nanochannels, metal oxides, composite materials containing carbon (such as polypyrrole) and conductive polymers.
  • Such supercapacitors are known from the literature, see for example, the article ⁇ Development of new supercapacitor electrodes based on carbon nanotubes' by E. Frackowiak et al . , published in Polish Journal of Chemistry, 78, p. 1345-1356 (2004) .
  • the invention is also embodied in a supply unit for a rechargeable power supply as described above, provided with an electronic circuit into which the supercapacitor may be integrated, and which is connectable to an external power supply for recharging the supercapacitor.
  • a supply unit for a rechargeable power supply as described above, provided with an electronic circuit into which the supercapacitor may be integrated, and which is connectable to an external power supply for recharging the supercapacitor.
  • the supply unit according to the invention is characterized in that the electronic circuit comprises control electronics for controlling the electronic circuit subject to a charge level of the supercapacitor.
  • the supercapacitor is kept within the current and voltage limits as required in order to avoid damage to the supercapacitor.
  • a suitable embodiment of this supply unit for the rechargeable power supply according to the invention is further characterized in that the electronic circuit comprises a coil and an electronic switch serially connected therewith, and in that the supercapacitor can be connected at an electrical junction between the coil and the electronic switch.
  • FIG. 3 an electrical circuit diagram of a preferred embodiment of a rechargeable power supply according to the invention.
  • Figure 1 shows a supply unit for a rechargeable power supply that can be connected to a direct-current V- supply for recharging a supercapacitor 1 connected to said supply unit .
  • Such a supercapacitor 1 is built into a housing comprising an electrolyte and electrodes.
  • the electrodes are selected from the group comprising activated carbon powders, carbon nanochannels, metal oxides, composite materials containing carbon, and conductive polymers.
  • FIG. 1 shows that the supercapacitor 1 is incorporated in an electronic circuit that is connectable to said external direct-current V-supply of 10-30 volt for charging the supercapacitor 1.
  • the electronic circuit further comprises control electronics 2 for controlling the electronic circuit subject to a charge level of the supercapacitor 1 as determined by means of measuring bridges 3 and 4.
  • the control electronics 2 react through the controlled activation of an electronic switch 5, which is serially connected with a coil 6, which in turn is connected to the direct-current V-supply. Via a low-loss diode, the said supercapacitor 1 is connected at the electrical connecting point 7, between the coil 6 and the electronic switch 5.
  • the control electronics 2 are designed to rapidly charge said supercapacitor 1 while avoiding any damage to said capacitor, obtaining the energy from the coil 6 connected to the power supply V-supply.
  • the circuit of Figure 1 works as follows.
  • the power supply is connected to a direct current in the range from 10-30 volt, able to supply sufficient power to charge the supercapacitor 1 within the desired time.
  • the power supply V-supply supports a capacitor 11, which ensures that possible power peaks during charging have little effect on the power supply V-supply.
  • a zenerdiode 12 Connected in parallel with the supercapacitor 1 is a zenerdiode 12, which serves as protection against overvolt- age . Also connected in parallel is a capacitor 13 that ab- sorbs transition effects resulting from coupling and uncoupling the supercapacitor 1. As a rule, this supercapacitor 1 is coupled with the circuit by means of a (long) cable.
  • the control electronics 2 deal with the charging process, which starts after establishing that the power supply V- supply measures more than 10 volt and the operating voltage of the supercapacitor 1 is below its maximum rating voltage. When these criteria are fulfilled, the control electronics 2 will cause the electronic switch 5, embodied as mosfet, to open with the result that coil 6 becomes energised.
  • the current running through the coil 6 is measured using a measuring resistance 14.
  • the control electronics 2 activate the switch 5 to shut again, so that the voltage over the coil 6 is the same as the voltage of the supercapacitor 1 minus the voltage over the Shottky- diode 8.
  • the current now charges the supercapacitor 1 via the diode 8. In this process the current gradually decreases.
  • the charging cycle is completed and, if desired, may be repeated.
  • FIG. 2 very schematically shows the electrical circuit diagram of an alternating current-fed supply unit according to the invention.
  • the power supply Vcc is rectified via a diode 9 and charges a capacitor 10. This capacitor 10 supplies the power for charging the supercapacitor . 1.
  • the circuit is for the purpose of charging the supercapacitor 1 provided with an electronic switch 5 and a serially connected coil 6.
  • control electronics 2 are provided for controlling the electronic switch 5 so as to alternately switch it on and off, depending on the charge cycle of the supercapacitor 1.
  • FIG. 3 finally, shows a preferred configuration of the rechargeable power supply according to the invention.
  • the rechargeable power supply shown in Figure 3 is again comprised essentially of the supercapacitor 1, to which are connected preferably a first DC-DC converter 15 and a second DC-DC converter 16.
  • the first DC-DC converter 15 and the second DC-DC converter 16 are connected in series.
  • the first DC-DC converter 15 is a step-up-converter and effects an upward conversion of the direct current from the supercapacitor 1
  • the second DC-DC converter 16 is a step-down-converter effecting a downward conversion of the direct current in order to guarantee that the output voltage of said second DC-DC converter 16 provides at least the minimum voltage required by the device to be connected to the power supply.
  • Figure .3 further shows that between the first DC-DC converter 15 and the second DC-DC converter 16 a battery 17 may be placed, connected in parallel with the supercapacitor 1. This ensures that the relatively large amount of leakage current from the supercapacitor 1 will not adversely affect the availability of energy at the output terminals of the second DC-DC converter 16, when the rechargeable power supply according to the invention has not been used for a longer period of time.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

La présente invention porte sur un bloc d'alimentation rechargeable pouvant être utilisé dans un dispositif à piles et comprenant au moins un supercondensateur et au moins un premier et un deuxième convertisseur continu-continu connectés en série, le supercondensateur pouvant être connecté à une entrée du premier convertisseur continu-continu et le dispositif pouvant être connecté à une sortie du deuxième convertisseur continu-continu.
PCT/NL2006/000201 2005-04-18 2006-04-18 Bloc d'alimentation rechargeable WO2006112698A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1028797 2005-04-18
NL1028797A NL1028797C2 (nl) 2005-04-18 2005-04-18 Oplaadbare voeding.

Publications (2)

Publication Number Publication Date
WO2006112698A2 true WO2006112698A2 (fr) 2006-10-26
WO2006112698A3 WO2006112698A3 (fr) 2007-05-03

Family

ID=35385753

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL2006/000201 WO2006112698A2 (fr) 2005-04-18 2006-04-18 Bloc d'alimentation rechargeable

Country Status (2)

Country Link
NL (1) NL1028797C2 (fr)
WO (1) WO2006112698A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010026772A1 (de) * 2010-07-10 2012-01-12 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Notfallenergieversorgung für ein Fahrzeug
US20140321027A1 (en) * 2013-04-30 2014-10-30 Ultora, Inc. Rechargeable Power Source For Mobile Devices Which Includes An Ultracapacitor
EP2930821A1 (fr) 2014-04-08 2015-10-14 StoreDot Ltd. Systèmes et méthodes pour la recharge rapide adaptive pour des dispositifs portables et des dispositifs avec une connexion sporadique avec une source d'énergie
WO2016075431A1 (fr) * 2014-11-13 2016-05-19 Zapgocharger Ltd Chargeur de batterie
GB2544775A (en) * 2015-11-26 2017-05-31 Zapgo Ltd Portable electronic device
US10879726B2 (en) 2014-12-18 2020-12-29 StoreDot Ltd. Devices and methods for adaptive fast-charging of mobile devices
US11128152B2 (en) 2014-04-08 2021-09-21 StoreDot Ltd. Systems and methods for adaptive fast-charging for mobile devices and devices having sporadic power-source connection

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5591212A (en) * 1995-07-21 1997-01-07 Medtronic, Inc. Hybrid battery for implantable pulse generator
DE19746546C1 (de) * 1997-10-22 1999-03-04 Telefunken Microelectron Verfahren und Schaltungsanordnung zur kurzzeitigen Aufrechterhaltung einer Ausgangsspannung bei Ausfällen einer Eingangsspannung mittels eines Autarkiekondensators
AUPQ750500A0 (en) * 2000-05-15 2000-06-08 Energy Storage Systems Pty Ltd A power supply
US6737830B2 (en) * 2002-07-02 2004-05-18 Hewlett-Packard Development Company, L.P. Battery charging using a portable energy storage device
JP2004297753A (ja) * 2003-02-07 2004-10-21 Nec Tokin Corp 電源回路、及び該電源回路を備えた通信機器

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010026772A1 (de) * 2010-07-10 2012-01-12 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Notfallenergieversorgung für ein Fahrzeug
US20140321027A1 (en) * 2013-04-30 2014-10-30 Ultora, Inc. Rechargeable Power Source For Mobile Devices Which Includes An Ultracapacitor
US11244791B2 (en) 2013-04-30 2022-02-08 Oxcion Limited Rechargeable power source for mobile devices which includes an ultracapacitor
EP2930821A1 (fr) 2014-04-08 2015-10-14 StoreDot Ltd. Systèmes et méthodes pour la recharge rapide adaptive pour des dispositifs portables et des dispositifs avec une connexion sporadique avec une source d'énergie
US11128152B2 (en) 2014-04-08 2021-09-21 StoreDot Ltd. Systems and methods for adaptive fast-charging for mobile devices and devices having sporadic power-source connection
WO2016075431A1 (fr) * 2014-11-13 2016-05-19 Zapgocharger Ltd Chargeur de batterie
US9774201B2 (en) 2014-11-13 2017-09-26 Zapgo Ltd Battery charger
US10879726B2 (en) 2014-12-18 2020-12-29 StoreDot Ltd. Devices and methods for adaptive fast-charging of mobile devices
GB2544775A (en) * 2015-11-26 2017-05-31 Zapgo Ltd Portable electronic device
US10931136B2 (en) 2015-11-26 2021-02-23 Zapgo Ltd Portable electronic device
GB2544775B (en) * 2015-11-26 2021-07-21 Zapgo Ltd Portable electronic device

Also Published As

Publication number Publication date
NL1028797C2 (nl) 2006-10-20
WO2006112698A3 (fr) 2007-05-03

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