GB2015205A - Electronic circuit for a timepiece - Google Patents

Electronic circuit for a timepiece

Info

Publication number
GB2015205A
GB2015205A GB7900237A GB7900237A GB2015205A GB 2015205 A GB2015205 A GB 2015205A GB 7900237 A GB7900237 A GB 7900237A GB 7900237 A GB7900237 A GB 7900237A GB 2015205 A GB2015205 A GB 2015205A
Authority
GB
United Kingdom
Prior art keywords
voltage
circuit
threshold voltage
complementary mos
timepiece
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.)
Granted
Application number
GB7900237A
Other versions
GB2015205B (en
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of GB2015205A publication Critical patent/GB2015205A/en
Application granted granted Critical
Publication of GB2015205B publication Critical patent/GB2015205B/en
Expired 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers

Landscapes

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

Abstract

To minimize power consumption a complementary MOS integrated circuit for a timepiece comprises two kinds of complementary MOS transistors, one of which has a lower threshold voltage and the other has a higher threshold voltage. The complementary MOS transistors having a lower threshold voltage are used in the high frequency operated zone (10) (Fig. 2) of the circuit including oscillator circuit 1 and stages 6 of a frequency divider and are operated by a voltage (VssL) lower than the voltage supply (5) of the circuit and derived by a voltage converter 9. The transistors with the higher threshold voltage are used in the lower frequency Stages 8 of the divider. A level adjusting circuit 7 matches the voltage levels. <IMAGE>
GB7900237A 1978-01-09 1979-01-04 Electronic circuit for a timepiece Expired GB2015205B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP98978A JPS5498674A (en) 1978-01-09 1978-01-09 Electronic watch

Publications (2)

Publication Number Publication Date
GB2015205A true GB2015205A (en) 1979-09-05
GB2015205B GB2015205B (en) 1982-06-03

Family

ID=11488996

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7900237A Expired GB2015205B (en) 1978-01-09 1979-01-04 Electronic circuit for a timepiece

Country Status (2)

Country Link
JP (1) JPS5498674A (en)
GB (1) GB2015205B (en)

Also Published As

Publication number Publication date
JPS5498674A (en) 1979-08-03
GB2015205B (en) 1982-06-03

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990103