CH653852GA3 - - Google Patents

Download PDF

Info

Publication number
CH653852GA3
CH653852GA3 CH97184A CH97184A CH653852GA3 CH 653852G A3 CH653852G A3 CH 653852GA3 CH 97184 A CH97184 A CH 97184A CH 97184 A CH97184 A CH 97184A CH 653852G A3 CH653852G A3 CH 653852GA3
Authority
CH
Switzerland
Prior art keywords
voltage
duration
proportional
supply voltage
elementary pulse
Prior art date
Application number
CH97184A
Other languages
French (fr)
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 CH97184A priority Critical patent/CH653852GA3/fr
Priority to EP85102158A priority patent/EP0154889A1/en
Priority to JP60040248A priority patent/JPS60204299A/en
Publication of CH653852GA3 publication Critical patent/CH653852GA3/fr

Links

Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/14—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means incorporating a stepping motor
    • G04C3/143—Means to reduce power consumption by reducing pulse width or amplitude and related problems, e.g. detection of unwanted or missing step

Abstract

The device enables a stepping motor (M) to be supplied at constant power whatever the value of the supply voltage. Using a bridge (R1 to R4), a voltage (UAB) proportional to the supply voltage (U0) is tapped. The signal (T1) required to advance the rotor by one step is split into a large number of sampling periods (Te) of predetermined duration. Each of these periods consists of an elementary pulse followed by a period of interruption. The duration (T0) of the elementary pulse is determined by the time taken by a capacitor (C) to become charged: this will become shorter as the proportional voltage (UAB) applied to terminals of a network (RC) becomes higher. A comparator (16) compares the voltage (Uc) across the terminals of the capacitor with a reference voltage (Ur) so as to determine the duration (T0) of the elementary pulse and to define a chopping rate for the supply signal to the motor (M) which is inversely proportional to the supply voltage (U0). <IMAGE>
CH97184A 1984-02-29 1984-02-29 CH653852GA3 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH97184A CH653852GA3 (en) 1984-02-29 1984-02-29
EP85102158A EP0154889A1 (en) 1984-02-29 1985-02-27 Constant-power supply means for a stepping motor fed by a variable-tension source
JP60040248A JPS60204299A (en) 1984-02-29 1985-02-28 Device for driving stepping motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH97184A CH653852GA3 (en) 1984-02-29 1984-02-29

Publications (1)

Publication Number Publication Date
CH653852GA3 true CH653852GA3 (en) 1986-01-31

Family

ID=4199459

Family Applications (1)

Application Number Title Priority Date Filing Date
CH97184A CH653852GA3 (en) 1984-02-29 1984-02-29

Country Status (3)

Country Link
EP (1) EP0154889A1 (en)
JP (1) JPS60204299A (en)
CH (1) CH653852GA3 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2550847Y2 (en) * 1991-07-15 1997-10-15 トヨタ車体株式会社 Seat truck
WO1995027926A1 (en) * 1994-04-06 1995-10-19 Citizen Watch Co., Ltd. Electronic timepiece
CA2302171A1 (en) 1999-04-23 2000-10-23 Eta Sa Fabriques D'ebauches Method for controlling a stepping motor and device for implementing such method
DE69937731T2 (en) * 1999-04-23 2008-11-20 Eta Sa Manufacture Horlogère Suisse Method for controlling a stepping motor and device for using this method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2530631A1 (en) * 1975-07-09 1977-01-20 Siemens Ag CIRCUIT ARRANGEMENT FOR REGULATED DC VOLTAGE CONVERTER
EP0014833A1 (en) * 1979-01-23 1980-09-03 Siemens Aktiengesellschaft Circuit for controlling the output voltage of a switching converter
GB2059649A (en) * 1979-09-18 1981-04-23 Seiko Instr & Electronics Electronic timepiece
JPS57110100A (en) * 1980-12-25 1982-07-08 Casio Comput Co Ltd Driving system for pulse motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2530631A1 (en) * 1975-07-09 1977-01-20 Siemens Ag CIRCUIT ARRANGEMENT FOR REGULATED DC VOLTAGE CONVERTER
EP0014833A1 (en) * 1979-01-23 1980-09-03 Siemens Aktiengesellschaft Circuit for controlling the output voltage of a switching converter
GB2059649A (en) * 1979-09-18 1981-04-23 Seiko Instr & Electronics Electronic timepiece
JPS57110100A (en) * 1980-12-25 1982-07-08 Casio Comput Co Ltd Driving system for pulse motor

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 200 (E-135)(1078), 9 octobre 1982, & JP - A - 57 110 100 (CASIO KEISANKI K.K.)(08-07-1982). *

Also Published As

Publication number Publication date
EP0154889A1 (en) 1985-09-18
JPS60204299A (en) 1985-10-15

Similar Documents

Publication Publication Date Title
EP0057663A3 (en) Control device for stepping motor
AU538517B2 (en) Power supply apparatus
CH653852GA3 (en)
GB2040119A (en) Method and apparatus for recharging dry batteries
US4204157A (en) Periodic engine speed monitoring circit utilizing sampling circuitry
EP0121025A3 (en) Current regulating circuit
DE3863537D1 (en) DEVICE WITH A PHOTOCELL FOR RETRACTING THE TENSION SPRING.
JPS549631A (en) Automatic control system for charging amount
JPS5638988A (en) Driver for dc semiconductor motor
JPS6439235A (en) Battery charging equipment
ATE19205T1 (en) ELECTROMEDICAL DEVICE.
JPS53116163A (en) Electric charger for electrophotography
FR2643743B1 (en) CUTTING DEVICE FOR HIGH VOLTAGE DIRECT CURRENT
EP0258850A3 (en) Method and apparatus for charging lead-acid-accumulators
JPS5679317A (en) Memory backup circuit
JPS55163952A (en) One-dimensional solid-state pickup unit
KR910005742B1 (en) Quick charging control device of battery
DK53587A (en) PROCEDURE FOR CONTINUOUS PARELEL OPERATION OF A SYNCHRON GENERATOR WITH AT LEAST ONE DIESEL GENERATOR OF AN AID PEDALS
JPS6420000A (en) Voltage regulator
SU1228283A1 (en) Current-to-frequency converter
JPS5379220A (en) Control method for direct current motor number of revolution
SU1541578A1 (en) Ac voltage converter for regulation of power
JPS5476267A (en) Electronic watch
JPS5684515A (en) Recording device
FR2568428B1 (en) METHOD AND INSTALLATION FOR VOLTAGE REGULATION OF AN ASYNCHRONOUS MACHINE USED IN AUTONOMOUS GENERATOR, BY STEADY VARIATION OF A BATTERY OF CONDENSERS CONNECTED TO THE NETWORK.