JPS57110100A - Driving system for pulse motor - Google Patents

Driving system for pulse motor

Info

Publication number
JPS57110100A
JPS57110100A JP18526580A JP18526580A JPS57110100A JP S57110100 A JPS57110100 A JP S57110100A JP 18526580 A JP18526580 A JP 18526580A JP 18526580 A JP18526580 A JP 18526580A JP S57110100 A JPS57110100 A JP S57110100A
Authority
JP
Japan
Prior art keywords
pulse
voltage
pulse width
battery
motor
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
JP18526580A
Other languages
Japanese (ja)
Inventor
Hitoshi Tsutsui
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.)
Casio Computer Co Ltd
Original Assignee
Casio Computer 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 Casio Computer Co Ltd filed Critical Casio Computer Co Ltd
Priority to JP18526580A priority Critical patent/JPS57110100A/en
Publication of JPS57110100A publication Critical patent/JPS57110100A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P8/00—Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step
    • H02P8/14—Arrangements for controlling speed or speed and torque
    • H02P8/16—Reducing energy dissipated or supplied

Abstract

PURPOSE:To increase the lifetime of a battery power source by increasing the pulse width of a drive pulse wider than the normal pulse when the voltage of the battery is reduced lower than the prescribed value, thereby accurately driving the pulse motor when the battery voltage is dropped. CONSTITUTION:There are provided voltage detecting means 4 for detecting the output voltage of a battery power source E, and control means for controlling the pulse width of a drive pulse supplied to a pulse motor 20 in response to the output voltage detected by the means 4. When the output voltage of the battery power source E becomes lower than the prescribed value, the pulse width of the drive pulse is set wider than the pulse width of the normal pulse. For example, by using a circuit as shown, the pulse motor 20 is driven by a drive pulse having 128Hz of pulse width at normal time, but when the voltage of the battery E is dropper lower than 1.4V, a voltage detection signal DA is outputted from the detector 4, an FF5 is set, and the motor 20 is driven by the drive pulse having 64Hz of pulse width.
JP18526580A 1980-12-25 1980-12-25 Driving system for pulse motor Pending JPS57110100A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18526580A JPS57110100A (en) 1980-12-25 1980-12-25 Driving system for pulse motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18526580A JPS57110100A (en) 1980-12-25 1980-12-25 Driving system for pulse motor

Publications (1)

Publication Number Publication Date
JPS57110100A true JPS57110100A (en) 1982-07-08

Family

ID=16167794

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18526580A Pending JPS57110100A (en) 1980-12-25 1980-12-25 Driving system for pulse motor

Country Status (1)

Country Link
JP (1) JPS57110100A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653852GA3 (en) * 1984-02-29 1986-01-31
WO2007140208A3 (en) * 2006-05-24 2008-03-06 Nellcor Puritan Bennett Llc Systems and methods for regulating power in a medical device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH653852GA3 (en) * 1984-02-29 1986-01-31
WO2007140208A3 (en) * 2006-05-24 2008-03-06 Nellcor Puritan Bennett Llc Systems and methods for regulating power in a medical device

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