JPS56127870A - Electric operating machine - Google Patents
Electric operating machineInfo
- 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
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
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)
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 |
-
1980
- 1980-03-10 JP JP3004680A patent/JPS56127870A/en active Pending
Cited By (2)
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 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE59405381D1 (en) | Electronically commutated electric motor and method for its operation | |
EP0349888A3 (en) | Apparatus having an automatic switch-on device for a parallel appliance at the time a main appliance is put into operation | |
DE69627894T2 (en) | TRIAC CONTROL CIRCUIT | |
EP0031688A3 (en) | Electric motor start up control | |
JPS56127870A (en) | Electric operating machine | |
DE3669628D1 (en) | DEVICE FOR CONTROLLING THE FIELD CURRENT OF DC MOTORS. | |
JPS5468609A (en) | Tape running control method | |
FR2441314A1 (en) | Electric fence with voltage monitor - discontinues pulses when voltage exceeds given variable threshold | |
JPS5658781A (en) | Controlling method of inverter equipment | |
JPS5420525A (en) | Semi-automatic clutch control device | |
JPS5678380A (en) | Motor-driven clamping device | |
ES2153304A1 (en) | Electric motor run-up device | |
JPS5588101A (en) | Semiconductor controller | |
EP0331251A3 (en) | Overvoltage protection device for control circuits using power transistors | |
JPS52146818A (en) | Device for restricting shaft torque variation in rotary shaft system | |
JPS5762630A (en) | Control circuit device | |
DE19931921C2 (en) | Circuit and method for sensorless speed measurement of a DC motor | |
JPS57106397A (en) | Driving device for stepping motor | |
JPS5586977A (en) | Solenoid valve driving method | |
JPS53112414A (en) | Starter for squirrel-cage induction motor | |
JPS5332314A (en) | Excitation controller for synchronous | |
JPS51119920A (en) | Speed controller of single phase ac commutator motor | |
JPS532809A (en) | Device for controlling electric motor vehicle | |
JPS5519448A (en) | Control method of wire feed motor for welding | |
KR970019756A (en) | Automatic control of inrush current of microwave oven |