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US4449057A
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US
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Solar cell power supply device
Assignee: Canon Inc
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Filing: 1982-07-23
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Granted: 1984-05-15
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Expires: 2002-07-23
Abstract
Abstract There is disclosed a solar cell power supply device including a first and a second solar cells. The first cell has a determined spectral sensitivity characteristic and the second cell has a different spectral sensitivity characteristic and connected parallel to the first solar cell. A voltage regulating circuit is provided for stabilizing the output voltages from the first and second solar cells and supplying thus stabilized voltage to a load.
Inventors
- 👤 Junichi Ishiwata
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:44
CPC Classifications
H; H10; H10F; H10F77/00; H10F77/95; H10F77/953; H10F77/955; G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/613; H02; H02J; H02J1/00; H02J1/10; Y; Y02; Y02E; Y02E10/00; Y02E10/50; Y10; Y10S; Y10S136/00; Y10S136/291; Y10S136/293; Y10S323/00; Y10S323/906
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
61 words
A solar cell power supply device comprising: a first solar cell having a determined spectral sensitivity characteristic; a second solar cell having a different spectral sensitivity characteristic and connected in parallel to said first solar cell; and a voltage regulating circuit for stabilizing the output voltages from said first and second solar cells and supplying thus stabilized voltage to a load.
Claim 2
Dependent Claim
61 words
A solar cell power supply device comprising: a first solar cell having a determined spectral sensitivity characteristic; a second solar cell having a different spectral sensitivity characteristic and connected in parallel to said first solar cell; and a voltage regulating circuit for stabilizing the output voltages from said first and second solar cells and supplying thus stabilized voltage to a load.
Claim 3
Dependent Claim
23 words
A solar cell power supply device according to claim 1, wherein said first solar cell includes a serial connection of solar cell elements.
Claim 4
Dependent Claim
21 words
A solar cell power supply device according to claim 2, wherein said solar cell elements are single-crystal silicon solar cell elements.
Claim 5
Dependent Claim
23 words
A solar cell power supply device according to claim 1, wherein said second solar cell includes a serial connection of solar cell elements.
Claim 6
Dependent Claim
21 words
A solar cell power supply device according to claim 4, wherein said solar cell elements are amorphous silicon solar cell elements.
Claim 7
Dependent Claim
96 words
A solar cell power supply device comprising: first reverse current stopping means; a first solar cell having a first spectral sensitivity characteristic and connected serially to said first reverse current stopping means; second reverse current stopping means; a second solar cell having a second spectral sensitivity characteristic and connected serially to said second reverse current stopping means; and a voltage regulating circuit connected to said first and second solar cells for stabilizing the output voltages of said solar cells through said first and second reverse current stopping means and supplying thus stabilized voltage to a load.
Claim 8
Dependent Claim
96 words
A solar cell power supply device comprising: first reverse current stopping means; a first solar cell having a first spectral sensitivity characteristic and connected serially to said first reverse current stopping means; second reverse current stopping means; a second solar cell having a second spectral sensitivity characteristic and connected serially to said second reverse current stopping means; and a voltage regulating circuit connected to said first and second solar cells for stabilizing the output voltages of said solar cells through said first and second reverse current stopping means and supplying thus stabilized voltage to a load.
Claim 9
Dependent Claim
20 words
A solar cell power supply device according to claim 6, wherein first and second reverse current stopping means include diodes.
Claim 10
Dependent Claim
33 words
A solar cell power supply device according to claim 7, wherein said solar cells having first and second spectral sensitivity characteristics include an amorphous silicon solar cell and a single-crystal silicon solar cell.
Claim 11
Dependent Claim
35 words
A solar cell power supply device comprising: a first solar cell having a first spectral sensitivity characteristic; and a second solar cell having a second spectral sensitivity characteristic different from said first spectral sensitivity characteristic.
Claim 12
Dependent Claim
35 words
A solar cell power supply device comprising: a first solar cell having a first spectral sensitivity characteristic; and a second solar cell having a second spectral sensitivity characteristic different from said first spectral sensitivity characteristic.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-05-15 | 1987-11-14 | 1988-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-05-15 | 1991-11-14 | 1992-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-05-15 | 1995-11-14 | 1996-05-15 | $7700.00 | Window Closed / Lapsed |