JPS57148733A - Motor drive control circuit of motor-driven film advancing device - Google Patents

Motor drive control circuit of motor-driven film advancing device

Info

Publication number
JPS57148733A
JPS57148733A JP3562681A JP3562681A JPS57148733A JP S57148733 A JPS57148733 A JP S57148733A JP 3562681 A JP3562681 A JP 3562681A JP 3562681 A JP3562681 A JP 3562681A JP S57148733 A JPS57148733 A JP S57148733A
Authority
JP
Japan
Prior art keywords
motor
trq2
switch
relay
drive control
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
JP3562681A
Other languages
Japanese (ja)
Inventor
Masashio Kitaura
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP3562681A priority Critical patent/JPS57148733A/en
Publication of JPS57148733A publication Critical patent/JPS57148733A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/42—Interlocking between shutter operation and advance of film or change of plate or cut-film
    • G03B17/425—Interlocking between shutter operation and advance of film or change of plate or cut-film motor drive cameras

Abstract

PURPOSE:To simplify the circuit constitution, by using a contact bar of a motorfeeding relay switch for a transmission line of the conduction holding signal for a relay driving transistor. CONSTITUTION:The single pulse is supplied to a transistor TRQ2 of a motor drive control part 14 from a film advance start signal producing part 12. Thus the TRQ2 conducts to actuate a relay RL, and the contact bar of a switch S1 is switched to a constant open contact NO. Then the power is supplied to a motor M to start the operation of the motor. After this, the conduction is held for the TRQ2 through a holding signal producing part comprising the switch S1 and a resistance R3 to keep the driving of the motor M. Then a stop signal is produced at a TRQ7 functioning as a film advance stop signal producing part by the closure of a switch S8. As a result, the TRQ2 is turned off to stop the motor M. In such a way, a special circuit or control is eliminated for prevention of the relay oscillation to simplify the circuit constitution.
JP3562681A 1981-03-11 1981-03-11 Motor drive control circuit of motor-driven film advancing device Pending JPS57148733A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3562681A JPS57148733A (en) 1981-03-11 1981-03-11 Motor drive control circuit of motor-driven film advancing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3562681A JPS57148733A (en) 1981-03-11 1981-03-11 Motor drive control circuit of motor-driven film advancing device

Publications (1)

Publication Number Publication Date
JPS57148733A true JPS57148733A (en) 1982-09-14

Family

ID=12447067

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3562681A Pending JPS57148733A (en) 1981-03-11 1981-03-11 Motor drive control circuit of motor-driven film advancing device

Country Status (1)

Country Link
JP (1) JPS57148733A (en)

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