JPS5617082A - Wrist watch provided with solar cell - Google Patents
Wrist watch provided with solar cellInfo
- Publication number
- JPS5617082A JPS5617082A JP9309479A JP9309479A JPS5617082A JP S5617082 A JPS5617082 A JP S5617082A JP 9309479 A JP9309479 A JP 9309479A JP 9309479 A JP9309479 A JP 9309479A JP S5617082 A JPS5617082 A JP S5617082A
- Authority
- JP
- Japan
- Prior art keywords
- array
- cells
- circuit
- series
- solar cell
- 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.)
- Pending
Links
- 210000000707 wrist Anatomy 0.000 title abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 abstract 1
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/02—Details
- H01L31/02016—Circuit arrangements of general character for the devices
- H01L31/02019—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02021—Circuit arrangements of general character for the devices for devices characterised by at least one potential jump barrier or surface barrier for solar cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Abstract
PURPOSE:To save a reverse current blocking diode to be connected between a secondary battery in the array of solar cells for the wrist watch by a method wherein at least four or more cells are connected in series and the area per element is prescribed as 0.2cm<2> or less. CONSTITUTION:The secondary battery 4 is connected in parallel to an electronic watch circuit 5, and the battery 4 is charged by the solar cell array 6 through an overcharge proof circuit 3. In this constitution, the cells used for the array 6 is made of GaAlAs/GaAs, at least four or more cells are used to connect in series and the area of individual cell is prescribed as 0.2cm<2> or less per element. By this way, the reverse current blocking diode ordinarily connected in series between the array 6 and the circuit 3 can be made to needless to reduce the necessitated voltage drop as much, enhancing the charging ability at small quantity of light and excluding the wasteful voltage drop in the charging circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9309479A JPS5617082A (en) | 1979-07-20 | 1979-07-20 | Wrist watch provided with solar cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9309479A JPS5617082A (en) | 1979-07-20 | 1979-07-20 | Wrist watch provided with solar cell |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5617082A true JPS5617082A (en) | 1981-02-18 |
Family
ID=14072925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9309479A Pending JPS5617082A (en) | 1979-07-20 | 1979-07-20 | Wrist watch provided with solar cell |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5617082A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140181A (en) * | 1983-12-27 | 1985-07-25 | Seiko Epson Corp | Analog electronic timepiece with solar cell |
US20140159637A1 (en) * | 2012-08-19 | 2014-06-12 | EnergyBionics, LLC | Portable energy harvesting, storing, and charging device |
-
1979
- 1979-07-20 JP JP9309479A patent/JPS5617082A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60140181A (en) * | 1983-12-27 | 1985-07-25 | Seiko Epson Corp | Analog electronic timepiece with solar cell |
US20140159637A1 (en) * | 2012-08-19 | 2014-06-12 | EnergyBionics, LLC | Portable energy harvesting, storing, and charging device |
US20140159638A1 (en) * | 2012-08-19 | 2014-06-12 | EnergyBionics, LLC | Portable energy harvesting, storing, and charging device |
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