GB2357162B - Transformerless quartz analog clock - Google Patents

Transformerless quartz analog clock

Info

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
Application number
GB0029252A
Other versions
GB2357162A (en
GB0029252D0 (en
Inventor
Thomas G Guyett
Michael H Reeves
Stephen B Hobbs
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.)
GTC Properties Inc
Original Assignee
GTC Properties Inc
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 GTC Properties Inc filed Critical GTC Properties Inc
Publication of GB0029252D0 publication Critical patent/GB0029252D0/en
Publication of GB2357162A publication Critical patent/GB2357162A/en
Application granted granted Critical
Publication of GB2357162B publication Critical patent/GB2357162B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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)
GB0029252A 1999-11-30 2000-11-30 Transformerless quartz analog clock Expired - Fee Related GB2357162B (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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