WO2003015186A2 - Alimentation en tension a commande thermique - Google Patents

Alimentation en tension a commande thermique Download PDF

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Publication number
WO2003015186A2
WO2003015186A2 PCT/DE2002/002755 DE0202755W WO03015186A2 WO 2003015186 A2 WO2003015186 A2 WO 2003015186A2 DE 0202755 W DE0202755 W DE 0202755W WO 03015186 A2 WO03015186 A2 WO 03015186A2
Authority
WO
WIPO (PCT)
Prior art keywords
power supply
voltage
converter
activation unit
energy store
Prior art date
Application number
PCT/DE2002/002755
Other languages
German (de)
English (en)
Other versions
WO2003015186A3 (fr
Inventor
Andre Albsmeier
Wolf-Eckardt Bulst
Klaus Pistor
Frank Schmidt
Oliver Sczesny
Claus Seisenberger
Martin Vossiek
Original Assignee
Enocean Gmbh
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 Enocean Gmbh filed Critical Enocean Gmbh
Priority to AU2002320917A priority Critical patent/AU2002320917A1/en
Publication of WO2003015186A2 publication Critical patent/WO2003015186A2/fr
Publication of WO2003015186A3 publication Critical patent/WO2003015186A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects

Definitions

  • the invention relates to a thermally drivable power supply and a thermally drivable device using the power supply
  • thermocouple thermocouple pair
  • pyroelectric converter for converting thermal process energy into electrical energy is used for voltage generation.
  • This electrical energy is converted into high-frequency energy by means of an element with a non-linear characteristic; such an element can be a spark gap or a semiconductor component.
  • the high-frequency signal is then encoded using a coding device.
  • Transducers and filters e.g. B. SAW filter described. Also described is the possibility of the arrangement depending on an environmental parameter, for. B. the ambient temperature.
  • thermocouples are considered unsuitable to use an electronic circuit, e.g. B. to operate a sequential control system from semiconductor components, because they each only emit a small voltage of at best about 0.5 mV / degree.
  • thermogenerator In order to achieve a voltage that is suitable for operating an electronic circuit even with a small temperature difference ⁇ T, several hundred thermocouples would previously have to be connected in series to form a so-called thermogenerator. This is inexpensive only in a micro technology such as. B.
  • thermocouples result in a high internal resistance of the thermo generator of the order of 1 M ⁇ , so that this is at a voltage of 1 V can deliver its current of 1 ⁇ A, which is far too little to operate an electronic circuit.
  • thermocouples with a large number of elements at the same time.
  • thermoelectric drive of an electronic circuit in particular a sequence circuit.
  • the thermally drivable voltage supply has at least one thermoelectric converter, for. B. a thermocouple system or a pyroelectric converter.
  • An energy store is connected downstream of the converter, e.g. B. a capacitor or accumulator.
  • the state of charge of the energy store is monitored by means of an extremely low-power activation unit, and an output signal of the energy store is switched depending on the state of charge, eg. B. turns a connection to an electronic circuit on or off.
  • the activation element can connect a (separate or integrated) voltage converter and a consumer (voltage monitoring).
  • the optional voltage converter controls the output signal of the voltage supply so that a respective consumer can be operated; z. B.
  • the voltage converter the output signal within a to operate an electronic circuit, for. B. an electronic sequence control, keep the required voltage range. It is assumed that the electronic circuit or another consumer does not have to be operated permanently, that is to say can be switched on variably, so that the small amount of current generated by the converter even at a small temperature difference ⁇ T is used to charge the energy store.
  • a converter is preferably used, which supplies a high voltage, for. B. in the order of 1 V.
  • thermoelectric converter or thermogenerator preferably consists of a series connection of thermocouples or a pyroelectric element.
  • the thermoelectric converter is preferably in microtechnology, e.g. B. in thin-film technology, because so a large number of transducers can be manufactured inexpensively.
  • the energy store is preferably a capacitor with an extremely low leakage current, which must be far below 1 ⁇ A, a typical value of the currents generated.
  • An energy store with a leakage current of ⁇ 0.1 ⁇ A is preferred.
  • the capacitor is advantageously constructed to have a very high resistance in the long term.
  • the activation element is preferably an electronic circuit which has self-blocking field-effect transistors as switching elements, in particular if these are connected to one another according to a feedback principle, e.g. B. to achieve a certain switching characteristic.
  • the activation element is advantageously constructed in such a way that it already works with a supply current of far below 1 ⁇ A, in particular with a supply current ⁇ 0.25 ⁇ A.
  • the activation element can be realized with discrete and / or integrated components. It is also advantageous if the activation element has a voltage converter for control, e.g. B. to keep constant, the output voltage.
  • the activation element can also be implemented in other forms, for. B. by means of one or more electrostatic miniature switches, provided that the required low current consumption is met.
  • sensors come e.g. B. Devices in question that their measurements over radio, z. B. crack sensors, or by wire, z. B. using PLC ("Power Line Communication").
  • the consumer is expediently designed in ULP construction with an energy consumption of less than 500 mWs per work cycle, preferably with an energy consumption of less than 300 mWs per work cycle.
  • the voltage generator is shown schematically in more detail in the following exemplary embodiments.
  • FIG. 1 shows a sketch in two partial figures of the structure of a thermally drivable device using the voltage generator;
  • Figure 2 shows a circuit diagram of an activation unit.
  • FIG. la shows a thermally drivable device K with a thermally drivable voltage supply SV and a consumer 5.
  • the voltage supply SV includes a thermoelectric converter 1, an energy store 2 connected to its output and an activation element 3 with an integrated voltage converter 4.
  • thermoelectric converter 1 is designed as a set of thermocouples 10 implemented in thin-film technology.
  • the energy store 2 is a high-resistance capacitor with an oxide dielectric 20.
  • the activation element 3 is implemented with the aid of field-effect transistors 30, a feedback principle being used to achieve the desired switching characteristic.
  • a voltage converter 4 in the form of a switching converter is integrated in the activation element 3.
  • the consumer 5 is designed in ULP ("Ultra Low Power") technology and here comprises an electronic sequence control with the possibility of identification, eg. B. in a memory M, z. B. EEPROM, stored identity code, and a transmitter 8 for sending a transmission telegram.
  • the voltage converter 4 is connected downstream of the activation element 3 as a separate component.
  • FIG. 2 shows a circuit diagram of a voltage supply SV with a current requirement of a voltage monitoring as activation unit 3 of less than 200 nA.
  • thermoelectric converter 1 made of thermocouples 10 connected in series is connected in parallel to a capacitor 20.
  • the activation element 3 is in turn connected in parallel with field effect transistors 6, which the resistors R are wired in such a way that they interact with each other in feedback.
  • a voltage converter 4 Connected to this is a voltage converter 4, which detects a certain threshold value and, after it has been reached, applies a voltage to its output; the circuit is controlled by means of a logic module 7.
  • FIG. 3 shows a sketch of a diagram of a consumer 5.
  • the consumer 5 includes a semiconductor technology, for. B. as ASIC, executed sequence control to which a memory M is connected, which stores an identity code. At least one sensor 9 is coupled to the sequence control. By means of the sequential control 7, the z. B. is given by switching on the voltage supply SV, a send telegram is created, which may contain measurement data of the sensor 9 and the identity code. The transmission telegram is then emitted via a transmission stage 8 with the antenna 81 attached.
  • a semiconductor technology for. B. as ASIC
  • executed sequence control to which a memory M is connected, which stores an identity code.
  • At least one sensor 9 is coupled to the sequence control.
  • the z. B. is given by switching on the voltage supply SV, a send telegram is created, which may contain measurement data of the sensor 9 and the identity code.
  • the transmission telegram is then emitted via a transmission stage 8 with the antenna 81 attached.

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  • Dc-Dc Converters (AREA)

Abstract

La présente invention concerne une alimentation en tension (SV) qui présente au moins un transformateur thermoélectrique (1) comprenant une unité de stockage d'énergie (2) connectée en aval et une unité d'activation faible puissance (3), conçue pour contrôler l'état de charge de ladite unité de stockage d'énergie (2) et pour commuter, en fonction dudit état de charge, un signal de sortie de l'unité de stockage d'énergie (2). Particulièrement adaptée à des capteurs de crépitement, l'unité d'activation selon cette invention est extrêmement économe en énergie, par exemple grâce à l'utilisation de transistors à effet de champ à blocage automatique.
PCT/DE2002/002755 2001-07-31 2002-07-26 Alimentation en tension a commande thermique WO2003015186A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002320917A AU2002320917A1 (en) 2001-07-31 2002-07-26 Thermally driven power supply

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10137504.2 2001-07-31
DE10137504A DE10137504A1 (de) 2001-07-31 2001-07-31 Thermisch antreibbare Spannungsversorgung

Publications (2)

Publication Number Publication Date
WO2003015186A2 true WO2003015186A2 (fr) 2003-02-20
WO2003015186A3 WO2003015186A3 (fr) 2003-06-26

Family

ID=7693870

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/002755 WO2003015186A2 (fr) 2001-07-31 2002-07-26 Alimentation en tension a commande thermique

Country Status (3)

Country Link
AU (1) AU2002320917A1 (fr)
DE (1) DE10137504A1 (fr)
WO (1) WO2003015186A2 (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006001827A3 (fr) * 2003-12-02 2006-04-27 Battelle Memorial Institute Dispositifs thermoelectriques et leurs utilisations
WO2007093585A1 (fr) * 2006-02-15 2007-08-23 Siemens Aktiengesellschaft Détecteur de proximité
US7449614B2 (en) 2006-08-29 2008-11-11 Kimberly-Clark Worldwide, Inc. Absorbent articles including a monitoring system powered by ambient energy
US7626114B2 (en) 2006-06-16 2009-12-01 Digital Angel Corporation Thermoelectric power supply
US7834263B2 (en) 2003-12-02 2010-11-16 Battelle Memorial Institute Thermoelectric power source utilizing ambient energy harvesting for remote sensing and transmitting
US7851691B2 (en) 2003-12-02 2010-12-14 Battelle Memorial Institute Thermoelectric devices and applications for the same
US8455751B2 (en) 2003-12-02 2013-06-04 Battelle Memorial Institute Thermoelectric devices and applications for the same
US10141492B2 (en) 2015-05-14 2018-11-27 Nimbus Materials Inc. Energy harvesting for wearable technology through a thin flexible thermoelectric device
US10290794B2 (en) 2016-12-05 2019-05-14 Sridhar Kasichainula Pin coupling based thermoelectric device
US10367131B2 (en) 2013-12-06 2019-07-30 Sridhar Kasichainula Extended area of sputter deposited n-type and p-type thermoelectric legs in a flexible thin-film based thermoelectric device
US10553773B2 (en) 2013-12-06 2020-02-04 Sridhar Kasichainula Flexible encapsulation of a flexible thin-film based thermoelectric device with sputter deposited layer of N-type and P-type thermoelectric legs
US10566515B2 (en) 2013-12-06 2020-02-18 Sridhar Kasichainula Extended area of sputter deposited N-type and P-type thermoelectric legs in a flexible thin-film based thermoelectric device
US11024789B2 (en) 2013-12-06 2021-06-01 Sridhar Kasichainula Flexible encapsulation of a flexible thin-film based thermoelectric device with sputter deposited layer of N-type and P-type thermoelectric legs
US11276810B2 (en) 2015-05-14 2022-03-15 Nimbus Materials Inc. Method of producing a flexible thermoelectric device to harvest energy for wearable applications
US11283000B2 (en) 2015-05-14 2022-03-22 Nimbus Materials Inc. Method of producing a flexible thermoelectric device to harvest energy for wearable applications

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DE102007055090B4 (de) * 2007-11-16 2013-03-14 Eads Deutschland Gmbh Überwachungsvorrichtung zur Überwachung der Außenhaut eines Luftfahrzeuges

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DE19724769A1 (de) * 1997-06-12 1998-12-17 D T S Ges Zur Fertigung Von Du Energieautark betriebenes Sensorsystem und Verfahren zur Detektion unerwünschter Wärmeentstehung
EP0919887A2 (fr) * 1997-11-25 1999-06-02 Seiko Instruments Inc. Pièce d'horlogerie avec élément thermo-électrique
DE10025561A1 (de) * 2000-05-24 2001-12-06 Siemens Ag Energieautarker Hochfrequenzsender
WO2002095707A1 (fr) * 2001-05-22 2002-11-28 Enocean Gmbh Emetteur a alimentation thermique et systeme de detection
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Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006001827A3 (fr) * 2003-12-02 2006-04-27 Battelle Memorial Institute Dispositifs thermoelectriques et leurs utilisations
US7834263B2 (en) 2003-12-02 2010-11-16 Battelle Memorial Institute Thermoelectric power source utilizing ambient energy harvesting for remote sensing and transmitting
US7851691B2 (en) 2003-12-02 2010-12-14 Battelle Memorial Institute Thermoelectric devices and applications for the same
US8455751B2 (en) 2003-12-02 2013-06-04 Battelle Memorial Institute Thermoelectric devices and applications for the same
US9281461B2 (en) 2003-12-02 2016-03-08 Battelle Memorial Institute Thermoelectric devices and applications for the same
WO2007093585A1 (fr) * 2006-02-15 2007-08-23 Siemens Aktiengesellschaft Détecteur de proximité
US7626114B2 (en) 2006-06-16 2009-12-01 Digital Angel Corporation Thermoelectric power supply
US7449614B2 (en) 2006-08-29 2008-11-11 Kimberly-Clark Worldwide, Inc. Absorbent articles including a monitoring system powered by ambient energy
US10553773B2 (en) 2013-12-06 2020-02-04 Sridhar Kasichainula Flexible encapsulation of a flexible thin-film based thermoelectric device with sputter deposited layer of N-type and P-type thermoelectric legs
US10367131B2 (en) 2013-12-06 2019-07-30 Sridhar Kasichainula Extended area of sputter deposited n-type and p-type thermoelectric legs in a flexible thin-film based thermoelectric device
US10566515B2 (en) 2013-12-06 2020-02-18 Sridhar Kasichainula Extended area of sputter deposited N-type and P-type thermoelectric legs in a flexible thin-film based thermoelectric device
US11024789B2 (en) 2013-12-06 2021-06-01 Sridhar Kasichainula Flexible encapsulation of a flexible thin-film based thermoelectric device with sputter deposited layer of N-type and P-type thermoelectric legs
US10141492B2 (en) 2015-05-14 2018-11-27 Nimbus Materials Inc. Energy harvesting for wearable technology through a thin flexible thermoelectric device
US11276810B2 (en) 2015-05-14 2022-03-15 Nimbus Materials Inc. Method of producing a flexible thermoelectric device to harvest energy for wearable applications
US11283000B2 (en) 2015-05-14 2022-03-22 Nimbus Materials Inc. Method of producing a flexible thermoelectric device to harvest energy for wearable applications
US10290794B2 (en) 2016-12-05 2019-05-14 Sridhar Kasichainula Pin coupling based thermoelectric device
US10516088B2 (en) 2016-12-05 2019-12-24 Sridhar Kasichainula Pin coupling based thermoelectric device
US10559738B2 (en) 2016-12-05 2020-02-11 Sridhar Kasichainula Pin coupling based thermoelectric device

Also Published As

Publication number Publication date
AU2002320917A1 (en) 2003-02-24
DE10137504A1 (de) 2003-02-27
WO2003015186A3 (fr) 2003-06-26

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