WO1984001041A1 - Portable mini ac generator/dc accumulator for a mini power capacity - Google Patents

Portable mini ac generator/dc accumulator for a mini power capacity Download PDF

Info

Publication number
WO1984001041A1
WO1984001041A1 PCT/NL1983/000034 NL8300034W WO8401041A1 WO 1984001041 A1 WO1984001041 A1 WO 1984001041A1 NL 8300034 W NL8300034 W NL 8300034W WO 8401041 A1 WO8401041 A1 WO 8401041A1
Authority
WO
WIPO (PCT)
Prior art keywords
generator
mini
accumulator
permanent magnet
rotor
Prior art date
Application number
PCT/NL1983/000034
Other languages
French (fr)
Inventor
Petrus Matheus Josephus Knapen
Original Assignee
Petrus Matheus Josephus Knapen
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 Petrus Matheus Josephus Knapen filed Critical Petrus Matheus Josephus Knapen
Priority to AU19449/83A priority Critical patent/AU1944983A/en
Publication of WO1984001041A1 publication Critical patent/WO1984001041A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/372—Arrangements in connection with the implantation of stimulators
    • A61N1/378—Electrical supply
    • A61N1/3785—Electrical supply generated by biological activity or substance, e.g. body movement
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K35/00—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
    • H02K35/02—Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems

Definitions

  • Portable mini AC generator/DC accumulator for a mini power capacity Portable mini AC generator/DC accumulator for a mini power capacity.
  • the invention relates to a portable mini AC generator/DC accumulator for a mini power capacity as used e.g. for e wrist, a pocket or s necklace watch, a pacemaker or a battery powered hearing-aid, in which, under the influence of the individual movement of the bearer, a mass inertia or a rotor, set into motion with respect, to a stator not moving simultaneously therewith, and under the application of the pricipal of generating magnetic induction ' currents and via a rectifier known per se, transferring a mini AC into a mini DC, servicing the purpose of supplying directly or temporarily accumula ⁇ ting respectively a mini current.
  • a portable mini AC generator/DC accumulator for a mini power capacity as used e.g. for e wrist, a pocket or s necklace watch, a pacemaker or a battery powered hearing-aid, in which, under the influence of the individual movement of the bearer, a mass inertia or a rotor, set into motion with respect
  • a mini AC generator/DC accumulator contains a mutually cooperating selective magnetic system of a rotor and a stator, provided with a permanent magnet having at least 4 poles.
  • a lithiumcell can be applied, which by its characteristic prevents a discharge of the accumulator.
  • the main problem is to generate a sufficiently powerfull and high grade magnetic field and thus the required high voltage remaining within the res- tricted available space.
  • Supreme material for permanent magnets is extremely expensive.
  • material costs are less decisive for the ultimate price, so that for the mini generator/accumulator of the invention successivefull use can be made of a permanent magnet of the samarium-cobalt type pereformed in its isotropic or anisotropic version.
  • resins plastic bonded material
  • Even a disadvantage of less magnetic field strength can be compensated by the greater freedom of design engineering. This also makes it possible to apply a permanent mag ⁇ net with radial or axial magnetisation for the rotor/stat ⁇ r.
  • Fig. 1 shows the schematic drawing ⁇ f a selfloading quartz generator watch.
  • Fig. 2 shows perspectively a similar watch in which the invention is embodied.
  • Fig. 3 is a modified version according to Fig. 3 of a quartz generator watch.
  • Fig. 4-9 each show various embodiments of the construction of the generator/ accumulator in a top view and in a vertical cross section respectively;
  • Fig. 10 is a cross se tion of a permanent magnet.
  • a quartz generator watch 1 is powered by an accumulator 2.
  • This mini accumulator is charged by a mini
  • the watch 1 is, by resorption of kinetic energy provided by its bearer powered by the mini generator/accu ⁇ mulator, no battery replacement being required and thereby enjoying the advantages of the invention.
  • Fig. 2 and 3 various parts of a quartz generator watch according to the scheme of Fig. 1 can be found back.
  • the usual parts of the analog quartz watch consist of the battery 7, the oscillating circuit with quarz crystal 8, the coil 9 of the step by step motor 10 with its rotor.
  • the watch is provided with a rotor 11 and a stator 12 and on the rotor 11 there are mounted a number of permanent magnets 13, which magnets also provide for the mass inertia causing the rotor 1 1 to be brought out of balance.
  • the way of generating energy shall not be discussed hereinafter since this is supposed to be known.
  • a rotor can also in it self be selectively become magnetised and the stator instead of containing a single coil, can consists of a number of self inductions or otherwise be made of a self inductive element.
  • the stator instead of containing a single coil, can consists of a number of self inductions or otherwise be made of a self inductive element.
  • the rotor is selectively magnetic and the stator is selectively inductive or reversely, it is only necessary to take the generated current away to the accumulator 7 via the rectifier ccircuit, see Fig. 1.
  • To generate a mini power, caused by the bearer's kinetic energy, in stead of a rotating movement also an alternating movement can be used, in the plane of the rotor but also perpendicular thereto.
  • Fig. 3 shows a perpective view of another quatrs generator watch, the shape of the generator rotor 14 being different whereas the accumulator 15 and the combined rectifier circuit/voltage regulator/discharge protection 16 are shown as a single unit. From the difference in design between the genera ⁇ tor 1 1 and 14 some freedom in design is apparent, this being the result of the application of permanent magnets of the samarium-cobalt type in its isotropic or anisotropic version. It appears that this material is highly suitable for the mini power aimed at, despite its relatively high price, in combination with the advantages already discussed before.
  • Figs. 4-9 there are shown some constructional embodiments of the mini generator making it possible to provide for a loose unit having minimum and optimal dimensions respectively.
  • a stator 17 with an induction coil 18 and a permanent magnet 19 of samarium-cobalt have been applied, together with a rotor 20 which is turnable around a fixed shaft 21.
  • the embodiments shown in the Figs enable to give the complete loose unit for use in a quartz watch a minimum thickness of 1,5 mm with a diameter of 5mm and having a thickness of at most 4 mm with a diameter of 11 ,5 mm.
  • Fig. 10 shows a possible embodiment in a cross section of a permanent magnet in the shape of an ellipsoide, having such an iron yoke, that magnetic satura ⁇ tion is just being prevented. This can e.g. be done by making the iron thicker at the critical points.
  • the permanent magnet 22 is surrounded fay the iron yoke 23 which provides for a cylindrical assembly.

Abstract

A portable mini AC generator/DC accumulator for mini power capacity such as e.g. in use for a wrist, pocket or necklace watch, a pacemaker or a battery powered hearing-aid, in which, under the influence of the individual movement of its bearer, a mass inertia or rotor (20) is set into motion with respect to a stator (18), not moving simultaneously therewith, and, under the application of the principle of generating magnetic induction currents and via a rectifier known per se, a mini DC current is generated, which serves the purpose of directly supplying or temporarily accumulating a mini current. Since a mini device has a very limited space for housing a mini generator/accumulator and nevertheless a sufficient loading current has to be generated, this strongly affects on the one hand its shape and on the other hand its costprice. Samarium-cobalt is very suitable material for a permanent magnet, applicable in an isotropic and an anisotropic version under the condition that the magnet must be executed with at least 4 poles. Especially the application in a quartz generator watch can be favourable for use of a magnet having 4 or more poles of a permanent magnet of the samarium-cobalt type, provided with an iron yoke with claw poles. However the use of a permanent magnet (22) in the shape of an ellipsoide with an iron yoke (23), resulting in a cylindrical assembly, may also be preferred. A loose unit of the generator/accumulator for use in a quartz watch can be manufactured while using the invention, having a minimum thickness of 1.5 mm and a minimum diameter of 5 mm.

Description

Portable mini AC generator/DC accumulator for a mini power capacity.
The invention relates to a portable mini AC generator/DC accumulator for a mini power capacity as used e.g. for e wrist, a pocket or s necklace watch, a pacemaker or a battery powered hearing-aid, in which, under the influence of the individual movement of the bearer, a mass inertia or a rotor, set into motion with respect, to a stator not moving simultaneously therewith, and under the application of the pricipal of generating magnetic induction ' currents and via a rectifier known per se, transferring a mini AC into a mini DC, servicing the purpose of supplying directly or temporarily accumula¬ ting respectively a mini current. There is a growing need for stopping the replacement of batteries in a battery powered mini equipment, such as for a watch or a pacemaker. At the most inconvenient moments a battery is exhausted and it is even sooner replaced than is strictly necessary just to avoid the risk of being empty e.g. for a pacemaker.
It is the purpose of the invention while using means known per se, to provide for for the generation and accumulation respectively of a mini power capaci¬ ty, no longer depending upon repiaceble mini battery cells such as from Hg batteries, Li batteries or Ni batteries.
According to the invention this is achieved in that a mini AC generator/DC accumulator contains a mutually cooperating selective magnetic system of a rotor and a stator, provided with a permanent magnet having at least 4 poles.
Extensive researches which were carried out by the Technological University of Eindhoven, Electrotechnics Department, Section of Electromechanics and Power electronics, have shown the above requirements for a mini genera¬ tor/accumulator to be used for a quartz generator watch. According to the invention there is further a need to connect the rectifier to a discharge protection for the accumulator in order to prevent an inadmissible discharge, caused e.g. if the watch is not used for a longer duration, comparable with a lack of movement impulses.
In a preferred embodiment of the invention a lithiumcell can be applied, which by its characteristic prevents a discharge of the accumulator.
The main problem is to generate a sufficiently powerfull and high grade magnetic field and thus the required high voltage remaining within the res- tricted available space. Supreme material for permanent magnets is extremely expensive. For mini-use however material costs are less decisive for the ultimate price, so that for the mini generator/accumulator of the invention succesfull use can be made of a permanent magnet of the samarium-cobalt type pereformed in its isotropic or anisotropic version. Where samarium-cobalt can be mixed with resins (plastic bonded material), even a disadvantage of less magnetic field strength can be compensated by the greater freedom of design engineering. This also makes it possible to apply a permanent mag¬ net with radial or axial magnetisation for the rotor/statαr.
Calculations and research show that a very effective embodiment of the generator/ accumulator is achieved if the abovementioπed permanent magnet is circumferentially provided with an iron yoke having claw poles. Under such circumstances there are no restrictions for the magnet material and the best available quality of samarium-cobalt can be chosen. According to the invention a very favourable embodiment of a permanent magnet is effec- ted by an ellipsoide, being provided with an iron yoke that a cylindrical assembly is obtained. By this choice it can be expected that the magnetic saturation, which otherwise would be caused at critical points, does not occur.
Since the available space for a battery in existing watches becomes now available for the generator/accumulator of the invention, a loose unit appears to be most effective. Specifically for a quartz watch the sizes of the unit must measure between a thickness of at least 1.5 mm and at most 4 mm, whereas the diameter will be between 5mm and 11.5 mm at the most.
The invention will be explained by means of the drawing of a quartz watch with its parts.
Fig. 1 shows the schematic drawing αf a selfloading quartz generator watch.
Fig. 2 shows perspectively a similar watch in which the invention is embodied.
Fig. 3 is a modified version according to Fig. 3 of a quartz generator watch.
Fig. 4-9 each show various embodiments of the construction of the generator/ accumulator in a top view and in a vertical cross section respectively;
Fig. 10 is a cross se tion of a permanent magnet.
In Fig. 1, the principle is shown in which a quartz generator watch 1 is powered by an accumulator 2. This mini accumulator is charged by a mini
DC generator 3 which converts kinetic energy into electric energy and by meihs of a rectifierblock 4, a voltage regulates 5 and a discharge protection 6 a mini DC is given to the accumulator 2. The watch 1 is, by resorption of kinetic energy provided by its bearer powered by the mini generator/accu¬ mulator, no battery replacement being required and thereby enjoying the advantages of the invention.
In Fig. 2 and 3 various parts of a quartz generator watch according to the scheme of Fig. 1 can be found back. The usual parts of the analog quartz watch consist of the battery 7, the oscillating circuit with quarz crystal 8, the coil 9 of the step by step motor 10 with its rotor. Further the watch is provided with a rotor 11 and a stator 12 and on the rotor 11 there are mounted a number of permanent magnets 13, which magnets also provide for the mass inertia causing the rotor 1 1 to be brought out of balance. The way of generating energy shall not be discussed hereinafter since this is supposed to be known.
While in Fig. 2 the rotor 1 1 is provided with permanent magnets 13, a rotor can also in it self be selectively become magnetised and the stator instead of containing a single coil, can consists of a number of self inductions or otherwise be made of a self inductive element. For the application of the invention it makes no difference if the rotor is selectively magnetic and the stator is selectively inductive or reversely, it is only necessary to take the generated current away to the accumulator 7 via the rectifier ccircuit, see Fig. 1. To generate a mini power, caused by the bearer's kinetic energy, in stead of a rotating movement also an alternating movement can be used, in the plane of the rotor but also perpendicular thereto.
Fig. 3 shows a perpective view of another quatrs generator watch, the shape of the generator rotor 14 being different whereas the accumulator 15 and the combined rectifier circuit/voltage regulator/discharge protection 16 are shown as a single unit. From the difference in design between the genera¬ tor 1 1 and 14 some freedom in design is apparent, this being the result of the application of permanent magnets of the samarium-cobalt type in its isotropic or anisotropic version. It appears that this material is highly suitable for the mini power aimed at, despite its relatively high price, in combination with the advantages already discussed before.
In Figs. 4-9 there are shown some constructional embodiments of the mini generator making it possible to provide for a loose unit having minimum and optimal dimensions respectively.
OMPI - In various design embodiments a stator 17 with an induction coil 18 and a permanent magnet 19 of samarium-cobalt have been applied, together with a rotor 20 which is turnable around a fixed shaft 21. The embodiments shown in the Figs, enable to give the complete loose unit for use in a quartz watch a minimum thickness of 1,5 mm with a diameter of 5mm and having a thickness of at most 4 mm with a diameter of 11 ,5 mm.
This makes it possible to build the individual unit in existing battery powered watches.
The already mentioned researches and calculations show how optimal results are obtained while using permanent magnets with at least 4 poles, whereby, depending on the constructional choice, use can be made of radial or axial magnetisation.
It also appeared that preference may be given to a permanent magnet, provi¬ ded with at least 4 poles, circumferentially provided with an iron yoke having claw poles.
Fig. 10 shows a possible embodiment in a cross section of a permanent magnet in the shape of an ellipsoide, having such an iron yoke, that magnetic satura¬ tion is just being prevented. This can e.g. be done by making the iron thicker at the critical points. In Fig. 10 the permanent magnet 22 is surrounded fay the iron yoke 23 which provides for a cylindrical assembly.
It appears to be very well possible to produce the unit referred to for an attractive price which is lower than the price of a replaced battery. Surely for use with a pacemaker the advantages with the generating mini power are more remarkable and also while applying this for hearing-aids, etc., total independency exists with respect to replacement batteries.
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Claims

- PATENT CLAIMS
1. A portable mini AC generator/DC accumulator for mini power capacity, such as e.g. in use for a wrist, pocket or necklace watch, a pacemaker or a battery powered hearing-aid, in which, under the influence of the individual movement of its bearer, a mass inertia or rotor, set into motion with respect to a stator, not moving simultaneously therewith, and under the application of the principle of generating magnetic induction currents and via a rectifier known per se, transferring a mini AC into a mini DC, servicing the purpose of supplying or temporarily accumulating respectively a mini current, characte¬ rized in that the generator/ accumulator consists of a mutually cooperating selective magnetic system of a rotor and a stator, provided with a permanent magnet, having at least 4 poles.
2. Generator/accumulator according to claim 1, characterized in that the rectifier is connected to a discharge protection for the accumulator.
3. Generator/accumulator according to claim 1, characterized in that a lithi- umcell is used as a discharge protection.
4. Generator/accumulator according to claim 1, characterized in that a perma¬ nent magnet is used of the type samarium-cobalt in an isotropic or anisotropic version.
5. Generator/accumulator according to claim 4, characterized in that the rotor/stator assembly contains a permanent magnet provided with an axial magnetisation.
6. Generator/accumulator according to claim 4, characterized in that the rotor/stator assembly contains a permanent magnet provided with a radial magnetisation.
7. Generator/accumulator azccording to one of the claims 1 and 4-6, characte¬ rized in that a permanent magnet of the samarium-cobalt type having at least 4 poles along its circumference, is provided with an iron yoke having claw poles.
8. Generator/accumulator according to one of the claims 1 and 4-6, characteri- zed in that the permanent magnet has the shape of an ellipsofde with such an iron yoke, that a cilindrical assembly is created.
9. Generator/accumulator according to one of the preceding claims, characteri¬ zed in that the assembly of rotor/stator consists of a separate loose unit.
10. Generator/ accumulator according to claim 9, characterized in that the loose unit to be used for a quartz watch has a thickness between at least 1,5 mm and no more than 4 mm and having a diameter of at least 5 mm and no more than 11,5 mm.
OMP
PCT/NL1983/000034 1982-09-03 1983-09-02 Portable mini ac generator/dc accumulator for a mini power capacity WO1984001041A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU19449/83A AU1944983A (en) 1982-09-03 1983-09-02 Draagbare miniwisselstroom generator/gelikstroom akkumulator voor een minivermogen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8203443A NL8203443A (en) 1982-09-03 1982-09-03 PORTABLE, BATTERY-POWERED DEVICE, IN PARTICULAR A BRACELET OR WRIST WATCH, WHOSE BATTERY IS KEPT IN CHARGED CONDITION WHEN CHARGED.

Publications (1)

Publication Number Publication Date
WO1984001041A1 true WO1984001041A1 (en) 1984-03-15

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Application Number Title Priority Date Filing Date
PCT/NL1983/000034 WO1984001041A1 (en) 1982-09-03 1983-09-02 Portable mini ac generator/dc accumulator for a mini power capacity

Country Status (3)

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EP (1) EP0119223A1 (en)
NL (1) NL8203443A (en)
WO (1) WO1984001041A1 (en)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170303A1 (en) * 1984-07-03 1986-02-05 Kinetron B.V. An electric power supply system for portable miniature size power consuming devices
EP0584518A1 (en) * 1992-08-21 1994-03-02 Pacesetter AB Induction-type motion sensor
EP0683442A1 (en) * 1994-05-20 1995-11-22 Mondaine Watch Ltd Small electronic watch
WO1996019261A2 (en) * 1994-12-19 1996-06-27 Medtronic, Inc. Movement powered medical pulse generator having a full-wave rectifier with dynamic bias
WO1999063642A2 (en) * 1998-06-02 1999-12-09 Telefonaktiebolaget Lm Ericsson A portable communication device with electromechanical transducer means and a battery pack therefor
EP0990961A1 (en) * 1998-10-01 2000-04-05 Seiko Epson Corporation Electromagnetic transducer and electronic device including the transducer
WO2000065180A1 (en) * 1999-04-26 2000-11-02 Huf Hülsbeck & Fürst Gmbh & Co. Kg Electronic key, in particular, for vehicles
GB2354646A (en) * 1999-09-22 2001-03-28 John Fagbola Battery housed kinetic generator
US6307274B1 (en) * 1999-10-14 2001-10-23 Leadtek Research Inc. Power generator for a digital cassette cartridge
EP1363380A1 (en) * 2002-05-14 2003-11-19 Pierre Cibié Generator for supplying a battery for portable device such as a mobile phone
EP1556132A2 (en) * 2002-10-09 2005-07-27 Sirius Implantable Systems Ltd. Micro-generator implant
WO2010151763A1 (en) * 2009-06-26 2010-12-29 Alcon Research, Ltd. Intraocular kinetic power generator
JP2012070535A (en) * 2010-09-24 2012-04-05 Toshiba Corp Thin vibration power generation device
WO2021141491A1 (en) * 2020-01-10 2021-07-15 Kinetron B.V. Micro-power generator suitable for an electronic device, electronic device comprising such a micro-power generator

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058942B (en) * 1957-05-24 1959-06-04 Kieninger & Obergfell Portable electric clock
CH364297A (en) * 1959-05-28 1962-09-15 Standard Telephon & Radio Ag Circuit arrangement for feeding at least one consumer from at least two direct current sources
GB942758A (en) * 1959-05-21 1963-11-27 Rca Corp Combined clock and radio receiver
DE1811389A1 (en) * 1967-12-06 1969-07-03 Ibm Flat semiconductor element
DE1952075A1 (en) * 1968-10-24 1970-05-14 Reich Robert W Power supply device for electronic pocket watches
US3800212A (en) * 1973-02-26 1974-03-26 Burroughs Corp Mechanical-to-electrical conversion system
FR2376307A1 (en) * 1976-12-30 1978-07-28 Astier Jean Wind driven power generator - has impellers responding equally to wind from all directions to drive low speed alternator
DE2751797A1 (en) * 1977-11-19 1979-05-23 Quarz Zeit Ag Electrically driven wrist watch - has charging circuit with generator connected to inertia rotor operated by watch movement
FR2482377A1 (en) * 1980-05-06 1981-11-13 Auzilleau Jean Electricity storage system for remote transmitter - includes two separate batteries with charge and discharge control circuit

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058942B (en) * 1957-05-24 1959-06-04 Kieninger & Obergfell Portable electric clock
GB942758A (en) * 1959-05-21 1963-11-27 Rca Corp Combined clock and radio receiver
CH364297A (en) * 1959-05-28 1962-09-15 Standard Telephon & Radio Ag Circuit arrangement for feeding at least one consumer from at least two direct current sources
DE1811389A1 (en) * 1967-12-06 1969-07-03 Ibm Flat semiconductor element
DE1952075A1 (en) * 1968-10-24 1970-05-14 Reich Robert W Power supply device for electronic pocket watches
US3800212A (en) * 1973-02-26 1974-03-26 Burroughs Corp Mechanical-to-electrical conversion system
FR2376307A1 (en) * 1976-12-30 1978-07-28 Astier Jean Wind driven power generator - has impellers responding equally to wind from all directions to drive low speed alternator
DE2751797A1 (en) * 1977-11-19 1979-05-23 Quarz Zeit Ag Electrically driven wrist watch - has charging circuit with generator connected to inertia rotor operated by watch movement
FR2482377A1 (en) * 1980-05-06 1981-11-13 Auzilleau Jean Electricity storage system for remote transmitter - includes two separate batteries with charge and discharge control circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 1, No. 135, 9 November 1977, see Abstract 6152E77, JP, A, 5268466, Suwa Seikosha K.K., 7 June 1977 *

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0170303A1 (en) * 1984-07-03 1986-02-05 Kinetron B.V. An electric power supply system for portable miniature size power consuming devices
EP0584518A1 (en) * 1992-08-21 1994-03-02 Pacesetter AB Induction-type motion sensor
EP0683442A1 (en) * 1994-05-20 1995-11-22 Mondaine Watch Ltd Small electronic watch
WO1996019261A2 (en) * 1994-12-19 1996-06-27 Medtronic, Inc. Movement powered medical pulse generator having a full-wave rectifier with dynamic bias
WO1996019261A3 (en) * 1994-12-19 1996-09-06 Medtronic Inc Movement powered medical pulse generator having a full-wave rectifier with dynamic bias
EP0976420A1 (en) * 1994-12-19 2000-02-02 Medtronic, Inc. Movement powered timepiece having a full-wave rectifier with dynamic bias
WO1999063642A2 (en) * 1998-06-02 1999-12-09 Telefonaktiebolaget Lm Ericsson A portable communication device with electromechanical transducer means and a battery pack therefor
WO1999063642A3 (en) * 1998-06-02 2000-02-17 Ericsson Telefon Ab L M A portable communication device with electromechanical transducer means and a battery pack therefor
US6208055B1 (en) 1998-10-01 2001-03-27 Seiko Epson Corporation Electromagnetic transducer and electronic device including the transducer
EP0990961A1 (en) * 1998-10-01 2000-04-05 Seiko Epson Corporation Electromagnetic transducer and electronic device including the transducer
WO2000065180A1 (en) * 1999-04-26 2000-11-02 Huf Hülsbeck & Fürst Gmbh & Co. Kg Electronic key, in particular, for vehicles
GB2354646A (en) * 1999-09-22 2001-03-28 John Fagbola Battery housed kinetic generator
US6307274B1 (en) * 1999-10-14 2001-10-23 Leadtek Research Inc. Power generator for a digital cassette cartridge
US6992415B2 (en) 2002-05-14 2006-01-31 Pierre Cibie Generator for charging a battery of a portable instrument such as a portable telephone
EP1363380A1 (en) * 2002-05-14 2003-11-19 Pierre Cibié Generator for supplying a battery for portable device such as a mobile phone
FR2839823A1 (en) * 2002-05-14 2003-11-21 Pierre Cibie PORTABLE INSTRUMENT BATTERY SUPPLY GENERATOR SUCH AS A PORTABLE TELEPHONE
EP1556132A2 (en) * 2002-10-09 2005-07-27 Sirius Implantable Systems Ltd. Micro-generator implant
EP1556132A4 (en) * 2002-10-09 2008-02-20 Sirius Implantable Systems Ltd Micro-generator implant
WO2010151763A1 (en) * 2009-06-26 2010-12-29 Alcon Research, Ltd. Intraocular kinetic power generator
JP2012070535A (en) * 2010-09-24 2012-04-05 Toshiba Corp Thin vibration power generation device
WO2021141491A1 (en) * 2020-01-10 2021-07-15 Kinetron B.V. Micro-power generator suitable for an electronic device, electronic device comprising such a micro-power generator
NL2024644B1 (en) * 2020-01-10 2021-09-07 Kinetron Bv Micro-power generator suitable for an electronic device, electronic device comprising such a micro-power generator

Also Published As

Publication number Publication date
NL8203443A (en) 1984-04-02
EP0119223A1 (en) 1984-09-26

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