JPS5515056A - Electronic watch - Google Patents

Electronic watch

Info

Publication number
JPS5515056A
JPS5515056A JP8805978A JP8805978A JPS5515056A JP S5515056 A JPS5515056 A JP S5515056A JP 8805978 A JP8805978 A JP 8805978A JP 8805978 A JP8805978 A JP 8805978A JP S5515056 A JPS5515056 A JP S5515056A
Authority
JP
Japan
Prior art keywords
circuit
voltage
inputted
output
control circuit
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
Application number
JP8805978A
Other languages
Japanese (ja)
Inventor
Kenichi Kondo
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments 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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP8805978A priority Critical patent/JPS5515056A/en
Priority to GB7924512A priority patent/GB2026739B/en
Publication of JPS5515056A publication Critical patent/JPS5515056A/en
Priority to HK884A priority patent/HK884A/en
Pending legal-status Critical Current

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
    • G04G19/06—Regulation
    • 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
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Electric Clocks (AREA)

Abstract

PURPOSE: To operate always an electronic circuit function normally and reduce a waste power consumption by providing a power source circuit which takes out the output of a fixed voltage level from a battery voltage.
CONSTITUTION: A battery voltage is inputted to the A terminal. A power source circuit is constituted by control circuit 12, reference voltage generator 14 and comparator circuit 13. First, the input voltage is inputted to control circuit 12 and reference voltage generation circuit 14. The output voltage of reference voltage generation circuit 14 is inputted to comparator circuit. The output voltage of control circuit 12 is inputted to comparator circuit 13 also. Output signals of comparator circuit 13 function as control signals to adjust voltages so that the output voltage of control circuit 12 may be equal to the output voltage of reference voltage generation circuit 14. As a result, a fixed voltage is outputted independently of the fluctuation of the battery voltage. By this fixed voltage, an oscillator circuit, a frequency divider circuit, an operation circuit, a decoder and a control circuit are operated.
COPYRIGHT: (C)1980,JPO&Japio
JP8805978A 1978-07-19 1978-07-19 Electronic watch Pending JPS5515056A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP8805978A JPS5515056A (en) 1978-07-19 1978-07-19 Electronic watch
GB7924512A GB2026739B (en) 1978-07-19 1979-07-13 Voltage regulation
HK884A HK884A (en) 1978-07-19 1984-01-05 Power source circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8805978A JPS5515056A (en) 1978-07-19 1978-07-19 Electronic watch

Publications (1)

Publication Number Publication Date
JPS5515056A true JPS5515056A (en) 1980-02-01

Family

ID=13932264

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8805978A Pending JPS5515056A (en) 1978-07-19 1978-07-19 Electronic watch

Country Status (3)

Country Link
JP (1) JPS5515056A (en)
GB (1) GB2026739B (en)
HK (1) HK884A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56144381U (en) * 1980-03-31 1981-10-30
JPS576384A (en) * 1980-06-13 1982-01-13 Hitachi Ltd Power source circuit and electronic watch using this
JPS57130301A (en) * 1980-12-22 1982-08-12 Western Electric Co Conductive thermoplastic material
JPS57137874A (en) * 1981-02-20 1982-08-25 Hitachi Ltd Electronic watch
JPS58501090A (en) * 1981-07-13 1983-07-07 ティーティーシー　ホールディング　アクチエンゲゼルシャフト electronic equipment
JPS60174888U (en) * 1984-04-27 1985-11-19 カシオ計算機株式会社 Small electronic equipment with solar battery

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433282A (en) * 1981-12-08 1984-02-21 Intersil Monolithic voltage divider
US4727308A (en) * 1986-08-28 1988-02-23 International Business Machines Corporation FET power converter with reduced switching loss
JP4108695B2 (en) * 2005-07-15 2008-06-25 三菱電機株式会社 In-vehicle electronic control unit

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228366A (en) * 1975-08-28 1977-03-03 Shimauchi Seiki Kk Voltage detection circuit
JPS53845A (en) * 1976-06-25 1978-01-07 Matsushita Electric Ind Co Ltd Power source
JPS533864A (en) * 1976-06-30 1978-01-13 Seiko Instr & Electronics Ltd Electronic watch

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5228366A (en) * 1975-08-28 1977-03-03 Shimauchi Seiki Kk Voltage detection circuit
JPS53845A (en) * 1976-06-25 1978-01-07 Matsushita Electric Ind Co Ltd Power source
JPS533864A (en) * 1976-06-30 1978-01-13 Seiko Instr & Electronics Ltd Electronic watch

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56144381U (en) * 1980-03-31 1981-10-30
JPS576384A (en) * 1980-06-13 1982-01-13 Hitachi Ltd Power source circuit and electronic watch using this
JPS57130301A (en) * 1980-12-22 1982-08-12 Western Electric Co Conductive thermoplastic material
JPS57137874A (en) * 1981-02-20 1982-08-25 Hitachi Ltd Electronic watch
JPS58501090A (en) * 1981-07-13 1983-07-07 ティーティーシー　ホールディング　アクチエンゲゼルシャフト electronic equipment
JPS60174888U (en) * 1984-04-27 1985-11-19 カシオ計算機株式会社 Small electronic equipment with solar battery

Also Published As

Publication number Publication date
HK884A (en) 1984-01-13
GB2026739A (en) 1980-02-06
GB2026739B (en) 1982-12-22

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