JPS56127870A - Electric operating machine - Google Patents

Electric operating machine

Info

Publication number
JPS56127870A
JPS56127870A JP3004680A JP3004680A JPS56127870A JP S56127870 A JPS56127870 A JP S56127870A JP 3004680 A JP3004680 A JP 3004680A JP 3004680 A JP3004680 A JP 3004680A JP S56127870 A JPS56127870 A JP S56127870A
Authority
JP
Japan
Prior art keywords
motor
terminal
torque
inter
capacitor
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
JP3004680A
Other languages
Japanese (ja)
Inventor
Yoichiro Kazama
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Priority to JP3004680A priority Critical patent/JPS56127870A/en
Publication of JPS56127870A publication Critical patent/JPS56127870A/en
Pending legal-status Critical Current

Links

Landscapes

  • Electrically Driven Valve-Operating Means (AREA)

Abstract

PURPOSE: To prevent a damage of valve component elements caused by insertion of foreign objects therein by a method wherein an input voltage variable circuit is arranged at one terminal of an electric motor so as to control a restricting torque of the motor.
CONSTITUTION: Input voltage variable circuit is arranged at one terminal end of the motor M and an output torque of the motor M may be adjusted. That is, the diac Di is operated only when an inter-terminal voltage in the capacitor C2 is kept constant, a pulse is applied to a gate terminal of a triac Tr to enable a normal or reverse rotation of the motor M. Therefore, it is possible to control a duration time required for the inter-terminal voltage of the capacitor C2 to be kept constant by varying a variable resistance VR and then a restricting torque or an energizing torque for the motor M is controlled. As a result, it is possible to prevent damage of the valve component elements when some foreign objects are inserted in the valve.
COPYRIGHT: (C)1981,JPO&Japio
JP3004680A 1980-03-10 1980-03-10 Electric operating machine Pending JPS56127870A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3004680A JPS56127870A (en) 1980-03-10 1980-03-10 Electric operating machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3004680A JPS56127870A (en) 1980-03-10 1980-03-10 Electric operating machine

Publications (1)

Publication Number Publication Date
JPS56127870A true JPS56127870A (en) 1981-10-06

Family

ID=12292873

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3004680A Pending JPS56127870A (en) 1980-03-10 1980-03-10 Electric operating machine

Country Status (1)

Country Link
JP (1) JPS56127870A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106898A (en) * 1982-12-08 1984-06-20 Hitachi Metals Ltd Motor-operated machine
JPH01150746A (en) * 1987-12-09 1989-06-13 Matsushita Electric Ind Co Ltd Water amount control device for hot water feeder

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59106898A (en) * 1982-12-08 1984-06-20 Hitachi Metals Ltd Motor-operated machine
JPH01150746A (en) * 1987-12-09 1989-06-13 Matsushita Electric Ind Co Ltd Water amount control device for hot water feeder

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