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JPH10155290A |
To achieve high speed, stable cutting of paper by providing two photos to learn the period of time of inverse current braking signal until reverse or forward rotation correcting process of the stop positions of the photos is completed an...
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JPH10155298A |
To provide an electric motor controlling device which makes it possible to make effective use of DC regenerative power by using the DC regenerative power to drive an electric motor. AC power of a specified frequency is generated by an in...
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JP2573660Y2 |
A control circuit for use in an electrically powered tool, such as a screw driver, includes a double-pole double-throw (DPDT) relay switch having two wiper contacts movable between ON and OFF positions. A motor is connected to a power su...
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JPH10150788A |
To automatically correct a stop position and stop a motor accurately at a predetermined position by controlling the stop operation starting time when power supply to the motor is turned of alter a slit is detected by a first sensor while...
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JPH10150746A |
To provide a rotary machine with a desired cutout function without making the structure complicated and increasing the size of the device by cutting a connection member when an abnormality occurs in the rotary machine and thereby disconn...
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JPH10146265A |
To provide a curtain motor control method by which special wiring is unnecessitated only by installing a motor. A curtain 1 is driven in an open (closed) direction by the rotation of the curtain motor at the time of opening (closing). Wh...
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JPH10143250A |
To provide an AC servo device of which stationary holding characteristics can be improved while shortening a control processing period. This device has a position amplifier 3 for outputting a 1st speed command signal showing the value of...
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JPH10146063A |
To fix the time until an induction motor's start after switching an operation command from ON to OFF by equipping an inverter device with a command input time detecting means and a passage time judging means, and starting the processing ...
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JPH10146079A |
To easily control the drive of a motor with a simplified circuit structure. A motor control circuit forms a flip-flop in which a power OFF transistor Q1 becomes OFF (ON) when a power ON transistor Q2 becomes ON (OFF), and also has a capa...
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JPH10146084A |
To minimize variation of a DC output voltage outputted from a PWM converter. A power converter is provided with a converter control circuit 26 for the feedback control to make almost equal a DC output voltage Vdc outputted from a PWM con...
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JP2760198B2 |
PURPOSE: To prevent abnormal temperature rise accurately by arranging a temperature sensor in a space which creates temperature characteristic proportional directly to the maximum temperature within an electric cleaner formed by arrangin...
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JP2757684B2 |
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JP2757712B2 |
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JPH10136674A |
To provide a power circuit of a motor control apparatus, wherein size, weight and cost are reduced. In this power circuit, a smoothing capacitor 3 connected in series with a first switching element 13, and a regenerative transistor 9 con...
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JPH10505216A |
PCT No. PCT/DE95/01084 Sec. 371 Date Mar. 10, 1997 Sec. 102(e) Date Mar. 10, 1997 PCT Filed Aug. 17, 1995 PCT Pub. No. WO96/08065 PCT Pub. Date Mar. 14, 1996A circuit for operating an electric motor includes a feedback arrangement which ...
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JPH10505217A |
A circuit for operating an electric motor (11) includes a monitoring arrangement (24) for ascertaining an increased load state of the electric motor (11). The monitoring arrangement (24) compares an rpm difference (ND) between a predeter...
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JPH10127080A |
To provide an electric motor control system for properly avoiding a dangerous state where a DC electric motor runs out of control due to the rapid decrease in a load in ACR (torque control) mode when the system is applied to a loading/un...
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JP2749755B2 |
PURPOSE: To allow correct grasping of overheated state by substituting the value of current for driving rotation to a predetermined operating formula and determining temperature rise of motor coil thereby detecting overheated state. CONS...
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JPH10119645A |
To provide a door mirror driving circuit in a simple structure and at a low cost by eliminating the need for a control circuit element on the OFF side. A door mirror driving circuit has a resistance R7 connected between input terminals I...
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JPH10117427A |
To make the operation characteristic of a starter programmable by storing at least one setting value for selectable operating characteristics and retrieving and using the setting, and then changing the setting by temporarily using an ove...
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JP2744366B2 |
PURPOSE: To provide a copying machine which prevents the vibration of an optical system at an initial position which is a previously set stopping position. CONSTITUTION: As the position of the optical system 2 approaches to a home positi...
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JPH1099188A |
To prevent the meshing part of a speed reduction gear mechanism between a motor and a roll curtain from being damaged as a result of inertial rotation of the motor if the curtain is manually operated and stopped near an open or closed po...
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JP2740953B2 |
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JP2739512B2 |
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JP2741035B2 |
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JPH1098892A |
To provide a method for monitoring and controlling opening and closing of a window glass and/or a slide roof for an automobile. The overall distance S of a window glass 9 is divided into two adjusting areas (a), (b), and the area (a) ran...
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JPH1097906A |
To reduce the number of components by permitting a PTC element (positive temperature coefficient thermistor) to be used for switching other than circuit protection. Patterns 17 and 18 are formed on a connecting board 12 and the board is ...
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JPH1091108A |
To improve a stop damping characteristic of a color display body by generating power in a coil utilizing inertia energy by movement of a magnet during a non-exciting period and applying dynamoelectrical braking by short- circuiting both ...
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JPH1091107A |
To improve a stop damping characteristic of a color display body by generating power in a coil utilizing inertia energy by movement of a magnet during a non-exciting period and applying dynamoelectrical braking by short- circuiting both ...
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JP2737262B2 |
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JP2737506B2 |
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JP2739166B2 |
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JP2735771B2 |
PURPOSE: To provide a braking device that has a braking switch including a changeover switch for an electric motor for driving an electric hand tool such as a drilling machine, a rectangular grinding machine, and hedging scissors with a ...
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JPH1084656A |
To stop a rotor safely by slowly decelerating the rotation while supporting the rotor by the magnetic levitation during the stop of power supply after the power supply is discontinued, by supplying generated power occurring at a stator s...
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JP2732418B2 |
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JP2734111B2 |
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JP2731815B2 |
A polyphase induction motor is driven from an inverter having a set of switches activated in prescribed on-off patterns to provide forward and reverse voltage vectors and a zero vector for controllably energizing the motor. Memories are ...
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JP2730060B2 |
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JP2730206B2 |
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JP2730736B2 |
A motor actuator has a rotary member driven by an electric motor and a position encoder for detecting the actuator at a desired position for stopping the motor. The position encoder employs a strategy of arranging a plurality of brush co...
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JPH1076727A |
To provide a printer wherein a DC motor is used as a print driving source, and a damping form of good cost performance is made practicable without applying an excess burden to a motor itself. When a subroutine of print processing is acce...
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JPH1077774A |
To accurately stop an open/closed material at a desired position without troublesome switch operation. In an automatically opening/closing device for an open/closed material, a midway stop position setting switch 11 and a stop switch 9 a...
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JP2728688B2 |
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JP2726077B2 |
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JP2727497B2 |
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JP2727329B2 |
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JP2564738Y2 |
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JP2564544Y2 |
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JP2723918B2 |
A device for movable parts for closing openings in motor vehicles, having a reversible DC drive motor, a polarity reversing actuation switch located in the motor circuit for supplying a DC voltage to the motor circuit with a poling corre...
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JP2724528B2 |
PURPOSE: To provide the DC-motor driving controller which accurately feeds a conveyed body such as a time recorder by using an inexpensive DC motor. CONSTITUTION: A counter 5 counts pulses generated by an encoder 3 attended with the rota...
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