GB2357162B - Transformerless quartz analog clock - Google Patents
Transformerless quartz analog clockInfo
- Publication number
- GB2357162B GB2357162B GB0029252A GB0029252A GB2357162B GB 2357162 B GB2357162 B GB 2357162B GB 0029252 A GB0029252 A GB 0029252A GB 0029252 A GB0029252 A GB 0029252A GB 2357162 B GB2357162 B GB 2357162B
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformerless
- analog clock
- quartz analog
- quartz
- clock
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/062—Avoiding or suppressing excessive transient voltages or currents
-
- 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
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/05—Capacitor coupled rectifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Rectifiers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US45151899A | 1999-11-30 | 1999-11-30 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB0029252D0 GB0029252D0 (en) | 2001-01-17 |
GB2357162A GB2357162A (en) | 2001-06-13 |
GB2357162B true GB2357162B (en) | 2004-04-07 |
Family
ID=23792549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB0029252A Expired - Fee Related GB2357162B (en) | 1999-11-30 | 2000-11-30 | Transformerless quartz analog clock |
Country Status (2)
Country | Link |
---|---|
CA (1) | CA2327173A1 (en) |
GB (1) | GB2357162B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100379116C (en) * | 2005-10-14 | 2008-04-02 | 四川世纪双虹显示器件有限公司 | Simple credible low-power consumption standby circuit |
CN112421747A (en) * | 2020-12-04 | 2021-02-26 | 安徽信息工程学院 | Automatic clock that charges |
CN115842396B (en) * | 2022-12-30 | 2023-10-24 | 飞杨电源技术(深圳)有限公司 | Automatic calibration circuit and method for output voltage of charger |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1432748A (en) * | 1973-07-13 | 1976-04-22 | Zellweger Uster Ag | Current supply arrangement for an electronic ripple-control receiver |
GB2175463A (en) * | 1985-05-12 | 1986-11-26 | Michael Shmuel Howard | Ballasts and transformerless power supplies |
GB2187345A (en) * | 1986-02-21 | 1987-09-03 | Diehl Gmbh & Co | Electronic switchgear |
GB2206749A (en) * | 1987-07-08 | 1989-01-11 | Sealand Ind Co Ltd | A voltage adaptor |
US5917779A (en) * | 1997-04-16 | 1999-06-29 | Gabriel, Inc. | Transformerless LED driving circuit |
-
2000
- 2000-11-30 GB GB0029252A patent/GB2357162B/en not_active Expired - Fee Related
- 2000-11-30 CA CA002327173A patent/CA2327173A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1432748A (en) * | 1973-07-13 | 1976-04-22 | Zellweger Uster Ag | Current supply arrangement for an electronic ripple-control receiver |
GB2175463A (en) * | 1985-05-12 | 1986-11-26 | Michael Shmuel Howard | Ballasts and transformerless power supplies |
GB2187345A (en) * | 1986-02-21 | 1987-09-03 | Diehl Gmbh & Co | Electronic switchgear |
GB2206749A (en) * | 1987-07-08 | 1989-01-11 | Sealand Ind Co Ltd | A voltage adaptor |
US5917779A (en) * | 1997-04-16 | 1999-06-29 | Gabriel, Inc. | Transformerless LED driving circuit |
Also Published As
Publication number | Publication date |
---|---|
GB2357162A (en) | 2001-06-13 |
GB0029252D0 (en) | 2001-01-17 |
CA2327173A1 (en) | 2001-05-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20111130 |