EP0083336A1 - Electronic apparatus. - Google Patents
Electronic apparatus.Info
- Publication number
- EP0083336A1 EP0083336A1 EP81901914A EP81901914A EP0083336A1 EP 0083336 A1 EP0083336 A1 EP 0083336A1 EP 81901914 A EP81901914 A EP 81901914A EP 81901914 A EP81901914 A EP 81901914A EP 0083336 A1 EP0083336 A1 EP 0083336A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- battery
- capacitor
- integrated circuit
- resistance
- series resistor
- 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.)
- Granted
Links
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
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)
Abstract
L'appareil électronique présente une pile sèche de longue durée (1), par exemple une pile au lithium-iode, dont la tension est abaissée de 2,8 volts à 1,5 volts par une résistance en série (R1) pour l'alimentation d'un circuit intégré usuel (3). On prévoit un condensateur (5) qui est continuellement chargé par la pile et supprime les pointes de courant. La résistance est substantiellement plus élevée que la résistance interne de la pile. Il est ainsi possible d'alimenter au moyen d'une pile de faible volume un petit appareil portatif, tel qu'une montre ou un calculateur, pendant plus de 10 ans par exemple.The electronic device has a long-lasting dry cell (1), for example a lithium-iodine cell, the voltage of which is lowered from 2.8 volts to 1.5 volts by a series resistor (R1) for the supply of a usual integrated circuit (3). A capacitor (5) is provided which is continuously charged by the battery and suppresses current spikes. The resistance is substantially higher than the internal resistance of the battery. It is thus possible to power a small portable device, such as a watch or a calculator, using a low-volume battery, for more than 10 years for example.
Description
Claims
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/CH1981/000078 WO1983000237A1 (en) | 1981-07-13 | 1981-07-13 | Electronic apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0083336A1 true EP0083336A1 (en) | 1983-07-13 |
EP0083336B1 EP0083336B1 (en) | 1986-11-05 |
Family
ID=4538418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP81901914A Expired EP0083336B1 (en) | 1981-07-13 | 1981-07-13 | Electronic apparatus |
Country Status (5)
Country | Link |
---|---|
US (1) | US4616167A (en) |
EP (1) | EP0083336B1 (en) |
JP (1) | JPS58501090A (en) |
DE (1) | DE3175572D1 (en) |
WO (1) | WO1983000237A1 (en) |
Families Citing this family (7)
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 |
DE102008003811A1 (en) * | 2008-01-10 | 2009-07-23 | Siemens Aktiengesellschaft | Battery operated danger detector with power buffer device |
Family Cites Families (21)
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 (en) * | 1971-04-22 | 1972-11-02 | Gebr. Junghans Gmbh, 7230 Schramberg | Circuit arrangement for driving battery-powered clocks of high accuracy |
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 (en) * | 1974-12-26 | 1976-06-30 | Citizen Watch Co Ltd | TOKEI YOKAIRO |
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 (en) * | 1981-08-27 | 1983-03-02 | Toshiba Corp | Electronic circuit |
-
1981
- 1981-07-13 EP EP81901914A patent/EP0083336B1/en not_active Expired
- 1981-07-13 WO PCT/CH1981/000078 patent/WO1983000237A1/en active IP Right Grant
- 1981-07-13 JP JP50234281A patent/JPS58501090A/en active Pending
- 1981-07-13 US US06/475,165 patent/US4616167A/en not_active Expired - Fee Related
- 1981-07-13 DE DE8181901914T patent/DE3175572D1/en not_active Expired
Non-Patent Citations (1)
Title |
---|
See references of WO8300237A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE3175572D1 (en) | 1986-12-11 |
WO1983000237A1 (en) | 1983-01-20 |
JPS58501090A (en) | 1983-07-07 |
US4616167A (en) | 1986-10-07 |
EP0083336B1 (en) | 1986-11-05 |
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Legal Events
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