EP0083336B1 - Appareil electronique - Google Patents

Appareil electronique Download PDF

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Publication number
EP0083336B1
EP0083336B1 EP81901914A EP81901914A EP0083336B1 EP 0083336 B1 EP0083336 B1 EP 0083336B1 EP 81901914 A EP81901914 A EP 81901914A EP 81901914 A EP81901914 A EP 81901914A EP 0083336 B1 EP0083336 B1 EP 0083336B1
Authority
EP
European Patent Office
Prior art keywords
battery
integrated circuit
capacitor
display unit
series resistance
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.)
Expired
Application number
EP81901914A
Other languages
German (de)
English (en)
Other versions
EP0083336A1 (fr
Inventor
Karl Adler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ADLER-NIETZHOLD Brunhilde
Original Assignee
ADLER-NIETZHOLD Brunhilde
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 ADLER-NIETZHOLD Brunhilde filed Critical ADLER-NIETZHOLD Brunhilde
Publication of EP0083336A1 publication Critical patent/EP0083336A1/fr
Application granted granted Critical
Publication of EP0083336B1 publication Critical patent/EP0083336B1/fr
Expired legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G04G19/02—Conversion or regulation of current or voltage

Definitions

  • the present invention relates to an electronic device, in particular a portable small device, according to the preamble of claim 1.
  • a portable small device is known from the Patents Abstracts of Japan, Volume 1, No. 57, page 3790E76.3. June 1977 & JP, A, 51-151578, December 27, 1976. It is an electronic watch that is powered by a lithium battery with a source voltage of 2.5-3 V. In order to generate the supply voltage of 1.5 - 2 V required for the electronic circuits, a corresponding voltage drop is generated via a series resistor, with an LCD display being supplied directly by the battery. The purpose of this known arrangement is to operate without a circuit for increasing the battery voltage for operating the LCD display.
  • This circuit is to keep the power consumption particularly low by feeding the integrated circuit with the low voltage of 1.2 V.
  • the average operating current in the application areas mentioned is approx. 2-5 Jl ⁇ , which results in a battery capacity of 300-400 mAh over a 10-year lifespan.
  • the functions of the integrated circuits practically do not change at higher voltages, an extremely high current rise up to approx. 50 pA is obtained, which makes the use of the long-term batteries practically impossible.
  • the aim of the present invention is to help the application of long-term solid-state batteries of the type mentioned in electronic, portable small devices of the type mentioned at the outset, such as computers, watches and the like, to achieve a breakthrough.
  • the use of a capacitor of the specified size enables not only the delivery of current peaks, by which the voltage on the battery and thus on the integrated circuit would collapse, but above all the reliable operation of the integrated circuit. Large fluctuations or jumps in the supply voltage of the integrated circuit can lead to malfunctions or the total failure of the integrated circuit.
  • the specified combination of measures according to the invention therefore leads to a fundamental enrichment of the technology, namely optimal use of long-term Solid state batteries with reliable function of the supplied devices.
  • the module shown in FIGS. 1 and 2 has a flat lithium-iodine battery 1, above which a display unit 2 is arranged, which is not shown in FIG. 1.
  • the switching elements in particular an integrated circuit 3, a quartz crystal 4, a capacitor 5, two resistors R1 and R2, a changeover switch 6 with contacts 6a, 6b and 6c, a control switch 7 with contacts 7a to 7d and a light emitting diode 8 (as part of the light emitting diode display 2).
  • the elements are connected to one another in the manner shown, contacts 9 and 10 being connected to the positive and negative battery terminals, respectively.
  • a holder 11 carries the switching elements, and the module is held together by means of a profile ring 12.
  • FIG. 1 schematically shows an embodiment variant in dashed lines, which instead of a liquid crystal or light-emitting diode display has a stepping motor 13 with an associated, special integrated circuit 14.
  • the integrated circuit is fed by the positive battery terminal via the resistor R1, which generates a voltage drop of 1.3 V.
  • the capacitor 5 is charged via the contacts 6a and 6c.
  • the contact 6a is moved to the contact 6b by means of a pusher (not shown), with which the display is fed from the capacitor 5 long enough to allow a reading.
  • the battery is therefore not burdened by the relatively high current for the display, and there is hardly any change in voltage on the integrated circuit, which could lead to malfunctions.
  • the contacts 7a and / or 7c can also be actuated by means of pushers, also not shown, in order to emit control pulses to control inputs of the integrated circuit via the contacts 7b or 7d.
  • the resistor R2 with a value of 250 to 500 S is connected to the drive circuit of the stepper motor 13.
  • stepping pulses from the capacitor reach the stepper motor, and experience has shown that, depending on the motor type, a safe operation is guaranteed with a capacitor from 5 to 10 li F.
  • Such a capacitor takes up very little space and can easily be accommodated in devices of virtually any size, for example in electronic wristwatches.
  • the integrated circuit 14 is designed for the full battery voltage of 2.8 V.
  • the circuit can also be carried out in such a way that the series resistor (R1) is bridged when the display is switched on, in that a special switch, together with the control switch for switching on the display, connects a further resistor in parallel with the resistor R1.
  • the series resistor R1 can have a value of 300 kQ, for example, while the bypass resistor has a value of 150 kQ.
  • FIG. 3 corresponding parts are identified in the same way as in FIG. 1, although a single integrated circuit 3 is shown which, in the manner indicated schematically, serves either to operate a liquid crystal display (LCD), a light-emitting diode display 2.8 (LED) or a stepping motor 13 can.
  • additional contacts 7e and 7f of the switch 7 are shown, which are connected to the battery 1 via the resistor R2.
  • a resistor R4 is connected upstream of the contacts 7e and 7f in the case of a light-emitting diode display.
  • the resistor R2 connected upstream of the stepping motor 13 has the value mentioned, for example 250 to 500 Q.
  • the integrated circuit 3 is supplied with current via the resistor R4 in order to compensate for a voltage drop across the capacitor 5.
  • the volume of the battery, regardless of its shape, including the protective capsule is, for example, 1.2 cm 3 with a capacity of 350 mAh. With a maximum consumption of 4.10 - 6 A you get a lifespan of approx. 10 years.
  • the diameter of the battery shown in Figures 1 and 2 is e.g. 25 mm and the height 2.5 mm.
  • a corresponding flat battery has e.g. a height of 3 mm and an area of 22 x 17 mm.
  • the module according to Figures 1 and 2 has, for example total height of 6.7 mm with a diameter of 30 mm.
  • FIG. 3 is also to be understood purely schematically.
  • the drive pulses for the stepper motor 13 are normally also conducted via the integrated circuit 3.
  • the capacitor 5 is then to be connected directly in parallel to the supply terminals of the integrated circuit, as indicated by the dashed line 15 in FIG. 3, in which case the series resistor R1 is between the battery 1 and the capacitor 5 is connected.
  • the contact 6c is omitted and the resistors R2 or R13, if present, are connected directly to the capacitor 5.
  • a changeover switch 16 can be provided, which allows the consumer to be separated from the capacitor 5.
  • the capacitor is in this case connected to a resistor 17, the value of which is selected such that it maintains the capacitor voltage at the desired nominal voltage of, for example, 1.5 V.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Electric Clocks (AREA)

Claims (7)

1. Appareil électronique, plus particulièrement appareil miniature portable, avec une batterie au lithium - iode (1) et un circuit intégré (3), l'alimentation du circuit intégré (3) étant effectuée à travers une résistance série (R1) qui abaisse la tension de la batterie à la tension de service du circuit intégré et avec un dispositif d'affichage alimenté par la batterie (LCD; 2,8; 13), caractérisé en ce que pour obtenir une alimentation en courant régulière sur une longue durée, il est prévu une batterie au lithium - iode de longue durée (1) avec un électrolyte solide, en ce que la résistance série (R1) a une valeur d'un multiple de la valeur maximum à envisager pour la résistance interne de la batterie (1) et en ce que, pour délivrer les pointes de courant à un affichage consistant en un dispositif d'affichage à cristal liquide (LCD), à diode électroluminescentes (2,8) ou un-affichage analogique entraîné par un moteur (13), il est prévu un condensateur (5) d'une valeur de 5 à 10 uF.
2. Appareil selon la revendication 1, caractérisé en ce que le condensateur (5) est branché en parallèle avec le circuit intégré (3).
3. Appareil selon la revendication 1, caractérisé en ce que le condensateur (5) est branché en parallèle avec la batterie (1).
4. Appareil selon l'une des revendications 1 à 3, caractérisé en ce que pour une résistance interne maximum de la batterie de 50 k, il est prévu une résistance série (R1) d'une valeur de 300 k.
5. Appareil selon l'une des revendications 3 ou 4, caractérisé en ce qu'il est prévu un interrupteur (6) pour prétever des pointes de courant du condensateur (5) pour l'affichage à diodes électroluminescentes (2, 8) à travers un circuit (6a, 6b) ne comprenant pas la résistance série (R1).
6. Appareil selon l'une des revendications 1 à 5, caractérisé en ce qu'il est prévu des moyens de commutation (7) pour réduire l'effet de la résistance série (R1) en présence de pointes de courant.
7. Appareil selon la revendication 6, caractérisé en ce que les moyens de commutation (7) comprennent des contacts (7e, 7f) pour commutation de résistance (R1, R2) dans le circuit d'alimentation du circuit intégré (3).
EP81901914A 1981-07-13 1981-07-13 Appareil electronique Expired EP0083336B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CH1981/000078 WO1983000237A1 (fr) 1981-07-13 1981-07-13 Appareil electronique

Publications (2)

Publication Number Publication Date
EP0083336A1 EP0083336A1 (fr) 1983-07-13
EP0083336B1 true EP0083336B1 (fr) 1986-11-05

Family

ID=4538418

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81901914A Expired EP0083336B1 (fr) 1981-07-13 1981-07-13 Appareil electronique

Country Status (5)

Country Link
US (1) US4616167A (fr)
EP (1) EP0083336B1 (fr)
JP (1) JPS58501090A (fr)
DE (1) DE3175572D1 (fr)
WO (1) WO1983000237A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008003811A1 (de) * 2008-01-10 2009-07-23 Siemens Aktiengesellschaft Batteriebetriebener Gefahrmelder mit Strompuffereinrichtung

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH681130GA3 (en) * 1991-07-12 1993-01-29 Small electronic watch e.g. wrist watch - has voltage divider in opening on base side of watch movement and 3 volt battery arranged between base and watch movement
US5425004A (en) * 1994-03-07 1995-06-13 Industrial Electronic Service Two-wire electronic module for remote digital clocks
US6087811A (en) * 1998-12-09 2000-07-11 Analog Modules, Inc. Pulsed-output power supply with high power factor
GB9926609D0 (en) * 1999-11-11 2000-01-12 Koninkl Philips Electronics Nv Method of,and circuit for,controlling the discharge of a battery
US6249109B1 (en) * 2000-03-21 2001-06-19 Nokia Mobile Phones Limited Heat transfer from active high drop regulator
GB2423199B (en) * 2005-02-11 2009-05-13 Pa Consulting Services Power supply systems for electrical devices

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3660163A (en) * 1970-06-01 1972-05-02 Catalyst Research Corp Solid state lithium-iodine primary battery
US3723183A (en) * 1971-02-04 1973-03-27 Greatbatch Ltd Lithium battery enclosure
DE2119707A1 (de) * 1971-04-22 1972-11-02 Gebr. Junghans Gmbh, 7230 Schramberg Schaltungsanordnung für den Antrieb batteriegespeister Uhren hoher Genauigkeit
GB1481024A (en) * 1974-07-15 1977-07-27 Suisse Horlogerie Battery powered electronic timepiece with voltage regulation
US3999368A (en) * 1974-12-11 1976-12-28 Citizen Watch Co., Ltd. Circuit for an electronic timepiece
JPS5175573A (ja) * 1974-12-26 1976-06-30 Citizen Watch Co Ltd Tokeiyokairo
JPS5232374A (en) * 1975-09-08 1977-03-11 Citizen Watch Co Ltd Electronic watch
JPS5240371A (en) * 1975-09-27 1977-03-29 Citizen Watch Co Ltd Electronic watch
JPS5250267A (en) * 1975-10-20 1977-04-22 Seiko Instr & Electronics Ltd Electronic clock
JPS5363057A (en) * 1976-11-18 1978-06-06 Seiko Epson Corp Electronic wristwatch
JPS53101473A (en) * 1977-02-16 1978-09-04 Seiko Instr & Electronics Ltd Electronic watch
JPS53110354A (en) * 1977-03-09 1978-09-27 Hitachi Ltd Oscillator circuit
JPS53115269A (en) * 1977-03-17 1978-10-07 Seiko Epson Corp Electronic watch
JPS5414272A (en) * 1977-07-04 1979-02-02 Citizen Watch Co Ltd Electronic watch
JPS5422864A (en) * 1977-07-21 1979-02-21 Citizen Watch Co Ltd Motor drive circuit electronic watch
JPS5473674A (en) * 1977-11-24 1979-06-13 Toyo Kogyo Co Power circuit for data indicator for automobile
JPS54153068A (en) * 1978-05-23 1979-12-01 Seiko Epson Corp Lamp lighting circuit of electronic wristwatches
JPS5515056A (en) * 1978-07-19 1980-02-01 Seiko Instr & Electronics Ltd Electronic watch
US4333171A (en) * 1979-09-04 1982-06-01 Citizen Watch Co., Ltd. Electronic timepiece with diffusion resistor for compensating threshold variations
JPS5731333A (en) * 1980-07-31 1982-02-19 Suwa Seikosha Kk Power source circuit system
JPS5835613A (ja) * 1981-08-27 1983-03-02 Toshiba Corp 電子回路

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
BROCKHAUS ENZYKLOPÄDIE, Bd. 10, KAT-KZ, 1970, S. 405 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008003811A1 (de) * 2008-01-10 2009-07-23 Siemens Aktiengesellschaft Batteriebetriebener Gefahrmelder mit Strompuffereinrichtung

Also Published As

Publication number Publication date
WO1983000237A1 (fr) 1983-01-20
US4616167A (en) 1986-10-07
JPS58501090A (ja) 1983-07-07
DE3175572D1 (en) 1986-12-11
EP0083336A1 (fr) 1983-07-13

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