CH671496GA3 - - Google Patents

Download PDF

Info

Publication number
CH671496GA3
CH671496GA3 CH485687A CH485687A CH671496GA3 CH 671496G A3 CH671496G A3 CH 671496GA3 CH 485687 A CH485687 A CH 485687A CH 485687 A CH485687 A CH 485687A CH 671496G A3 CH671496G A3 CH 671496GA3
Authority
CH
Switzerland
Prior art keywords
capacitor
cell
motor
terminals
pulse
Prior art date
Application number
CH485687A
Other languages
French (fr)
Other versions
CH671496B5 (en
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 filed Critical
Priority to CH4856/87A priority Critical patent/CH671496B5/fr
Priority to KR1019880015722A priority patent/KR890010637A/en
Priority to EP88120330A priority patent/EP0320754B1/en
Priority to DE8888120330T priority patent/DE3863537D1/en
Priority to US07/281,613 priority patent/US4901295A/en
Priority to JP63312137A priority patent/JPH01197690A/en
Publication of CH671496GA3 publication Critical patent/CH671496GA3/fr
Publication of CH671496B5 publication Critical patent/CH671496B5/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces
    • G04C10/02—Arrangements of electric power supplies in time pieces the power supply being a radioactive or photovoltaic source
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B1/00—Driving mechanisms
    • G04B1/10—Driving mechanisms with mainspring

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromechanical Clocks (AREA)
  • Control Of Stepping Motors (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The rewinding device consists of a photoelectric cell (3) placed so as to receive ambient light, a capacitor (4) connected to the terminals of the cell, a stepping motor (6), and a control circuit (5). The input to the circuit is connected to the capacitor terminals and its output is connected to the terminals of the motor whose rotor is coupled to the clockwork spring, e.g. of a watch, in order to rewind it. <??>The cell (3) charges the capacitor (4) and when its voltage, measured by a differential amplifier (23), reaches a reference voltage (Vr), the capacitor is connected to the motor terminals by a switching transistor (27). The discharge of the capacitor supplies a driving pulse to the motor. The duration of the pulse is determined by a monostable flip-flop (25). After the pulse, the capacitor is once again charged by the cell. <??>In order to prevent the motor from receiving a driving pulse before being stopped, in the event of intense illumination of the cell, another monostable flip-flop (29) prevents the control of the switching transistor (27) for a period of time corresponding to the time required for the rotor to perform a complete step. <IMAGE>
CH4856/87A 1987-12-11 1987-12-11 CH671496B5 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CH4856/87A CH671496B5 (en) 1987-12-11 1987-12-11
KR1019880015722A KR890010637A (en) 1987-12-11 1988-11-28 Devices with photocell for barrel spring winding
EP88120330A EP0320754B1 (en) 1987-12-11 1988-12-06 Device for rewinding the main spring of a clockwork comprising a photo-electric cell
DE8888120330T DE3863537D1 (en) 1987-12-11 1988-12-06 DEVICE WITH A PHOTOCELL FOR RETRACTING THE TENSION SPRING.
US07/281,613 US4901295A (en) 1987-12-11 1988-12-09 Device comprising a solar cell for winding a barrel spring
JP63312137A JPH01197690A (en) 1987-12-11 1988-12-12 Apparatus for winding barrel type coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH4856/87A CH671496B5 (en) 1987-12-11 1987-12-11

Publications (2)

Publication Number Publication Date
CH671496GA3 true CH671496GA3 (en) 1989-09-15
CH671496B5 CH671496B5 (en) 1990-03-15

Family

ID=4283738

Family Applications (1)

Application Number Title Priority Date Filing Date
CH4856/87A CH671496B5 (en) 1987-12-11 1987-12-11

Country Status (6)

Country Link
US (1) US4901295A (en)
EP (1) EP0320754B1 (en)
JP (1) JPH01197690A (en)
KR (1) KR890010637A (en)
CH (1) CH671496B5 (en)
DE (1) DE3863537D1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02239244A (en) * 1989-03-14 1990-09-21 Fuji Photo Film Co Ltd Silver halide color photosensitive material
JP2803991B2 (en) * 1994-06-02 1998-09-24 株式会社多川商事 Solar cell device and intermittent operation device using the same
WO2000067079A1 (en) * 1999-04-28 2000-11-09 Citizen Watch Co., Ltd. Electronic clock and method of controlling the clock
US7626892B2 (en) * 2006-05-01 2009-12-01 Tai-Her Yang Timing device with power winder
DE102009003290A1 (en) * 2009-05-20 2010-11-25 Robert Bosch Gmbh Method for operating a drive device and drive device and ventilation device or shading
FR2955676A1 (en) 2010-01-28 2011-07-29 Regantox Sa MECHANICAL WATCH WITH SOLAR ENERGY-POWERED MICROMOTOR RE-ASSEMBLY DEVICE FROM A PHOTOVOLTAIC CELL INTEGRATED WITH THE HOUSING
DE102016211503B3 (en) * 2016-06-27 2017-11-02 Innovartis Gmbh Solar clock with a mechanical, a spring drive having automatic movement
EP3299908B1 (en) 2016-09-27 2019-08-14 The Swatch Group Research and Development Ltd. Self-winding watch
EP4024140A1 (en) * 2020-12-29 2022-07-06 The Swatch Group Research and Development Ltd Power management method for a solar watch

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH1308A (en) * 1889-08-07 1889-11-09 Leon Mueller Safety hose
CH13259A (en) * 1896-09-17 1897-05-31 Lavals Angturbin Ab De Waterproof seal for flexible shaft or rod
DE1834479U (en) * 1961-01-13 1961-07-06 Frida Dirks TIME CLOCK.
GB890349A (en) * 1959-12-15 1962-02-28 Kenji Tokita Electric clock
EP0241202A2 (en) * 1986-04-08 1987-10-14 Seiko Instruments Inc. Analog electronic timepiece with charging function

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2004076A1 (en) * 1970-01-30 1971-08-05 Kieninger & Obergfell Electronic clock with low power requirements

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH1308A (en) * 1889-08-07 1889-11-09 Leon Mueller Safety hose
CH13259A (en) * 1896-09-17 1897-05-31 Lavals Angturbin Ab De Waterproof seal for flexible shaft or rod
GB890349A (en) * 1959-12-15 1962-02-28 Kenji Tokita Electric clock
DE1834479U (en) * 1961-01-13 1961-07-06 Frida Dirks TIME CLOCK.
EP0241202A2 (en) * 1986-04-08 1987-10-14 Seiko Instruments Inc. Analog electronic timepiece with charging function

Also Published As

Publication number Publication date
DE3863537D1 (en) 1991-08-08
US4901295A (en) 1990-02-13
EP0320754B1 (en) 1991-07-03
EP0320754A1 (en) 1989-06-21
KR890010637A (en) 1989-08-09
CH671496B5 (en) 1990-03-15
JPH01197690A (en) 1989-08-09

Similar Documents

Publication Publication Date Title
EP0377538A3 (en) Current mode switching regulator with programmed offtime
CH671496GA3 (en)
KR940006325A (en) Charging device
JPS57179824A (en) Integration circuit for electronic shutter
FR2263629A1 (en) Supply arrangement for recharging secondary cells - has voltage sensor and light signal indicating fully charged state
JPS56159621A (en) Photometric circuit
HK113993A (en) Power circuit for a camera
US3864579A (en) Voltage regulating circuit providing plural outputs
CH625666GA3 (en) Integrated circuit for an electronic timepiece
JPS5731271A (en) Solid state pickup device
JPS6473981A (en) Solid-state image pickup camera
JPS60100784A (en) Solar battery watch
JPS5516237A (en) Electronic watch
JPS57105731A (en) Self-processing camera for endoscope
GB1481651A (en) Camera circuit arrangement for the pre-exposure indication of exposure time
JPS5670537A (en) Display unit of availability for flashing
JPS6486665A (en) Picture reader
CH614835B (en)
JPS55159614A (en) Switched capacitor filter
JPS646768A (en) Signal-level detection circuit
JPS5863232A (en) Optical switch circuit
JPS6423128A (en) Holding circuit for automatic color temperature compensating ic under low illuminance condition
JPS5498067A (en) Discharge lamp lighting device
JPS5538550A (en) Single lens reflex camera having display hold circuit
TW327705B (en) Voltage monitoring circuit in an integrated circuit device