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JPH10285714A |
To obtain a DC shunt motor controlling device of a simple structure without a rotation sensor, capable of achieving smooth and efficient control. This device is provided with an armature voltage detecting means 11, current-detecting mean...
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JPH10285968A |
To provide an operation control circuit of a fan cooling type rear cooler receiving compressed air from a compressor placed in a locomotive. The operation control circuit of the fan cooling type rear cooler contains a motor 12 for drivin...
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JP2813201B2 |
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JPH10510977A |
The proposal is for a circuit for detecting an overload in an adjusting drive (10, 11, 12) operated by an electric motor (10) with provision for detecting the current flowing through said electric motor (10). A motor current evaluator (2...
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JPH10510978A |
PCT No. PCT/DE95/01672 Sec. 371 Date Jun. 19, 1997 Sec. 102(e) Date Jun. 19, 1997 PCT Filed Nov. 25, 1995 PCT Pub. No. WO96/19858 PCT Pub. Date Jun. 27, 1996A circuit arrangement and a method for operating an adjusting device (10, 11, 12...
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JPH10271865A |
To provide a regeneration abnormality detector having simple constitution with fewer circuit elements. A first comparator 5 informs the outside of a regeneration abnormality alarm when a node voltage 13 of a regenerative circuit reaches ...
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JPH10271866A |
To provide a power supply circuit capable of controlling the deceleration of a motor at the time of service interruption. A three-phase full-wave rectifier circuit 7 is connected in parallel with a single-phase full-wave rectifier circui...
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JPH10268939A |
To automate off-set adjustment by allowing a computer to control the output signal of a positional deviation correcting signal generator based on the deviation collecting information and a signal from a position sensor. When a value show...
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JPH10266941A |
To provide a Kaplan turbine that is promoted so as to make the flotage of a rotor detectable yet earlier, and also a reverse axial thrust preventable yet surer jointly, in addition to the shutdown method. This Kaplan turbine is composed ...
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JP2805899B2 |
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JPH10262392A |
To suppress overshoot against the prescribed value of filter capacitor voltage even if the load which absorbs regenerative current during regenerative braking is decreased rapidly. This inverter controller is provided with an inverter 3 ...
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JPH10257730A |
To provide a concentric multishaft motor which requires a small installation area and which does not allow an inside output shaft to be long and overhang on the load side, thereby having no bad effect on an elastic mode of rotary shafts ...
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JPH10257773A |
To minimize variation in DC output voltage from a PWM converter and accelerate response of feedback control by correcting the value of an integral term to set an electric current command value at zero when DC output voltage outputted fro...
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JP2800260B2 |
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JP2800386B2 |
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JP2580908Y2 |
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JPH10248283A |
To reduce power consumption by providing a level regulating means for differentiating the driving voltage being supplied to a motor among respective polarities thereby positioning a motor accurately in a short time. When a motor 11 is ro...
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JPH10248282A |
To suppress generation of heat by applying a total voltage to an electromagnetic brake only during the initial operation thereof and then diving the applying voltage thereby reducing power consumption of the brake. A servo motor 1 compri...
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JPH10248281A |
To provide the driving system of an AC motor, in which regenerative energy is utilized effectively and proper control operation can be expected in addition to simple constitution at low cost. A common DC bus 40 is installed to a system, ...
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JPH10243675A |
To provide a motor stop circuit which assures short stop period and prevent generation of over-voltage and over-current when power failure occurs. In a motor 3 for conducting power supply recovery control, comprising a regenerative disch...
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JPH10243674A |
To provide a DC motor protection apparatus which surely conduct the protecting operation at the starting time without limiting a load in the regular operation. A reference voltage generating circuit 5 is formed of a resistance voltage di...
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JPH10243673A |
To minimize the occurrence of a residual magnetism by stopping or lowering the coil excitation of a stator, when the pole of the magnet of a color indicator passing a stator, facing each other. The intensity of a magnetic field by a magn...
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JPH10236281A |
To provide a wiper control device that can surely stop a wiper blade even if receiving external force without making the structure of a switch to stop the wiper at a fixed position complex. This device is provided with a control means 5,...
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JP2794387B2 |
PURPOSE: To suppress a spike current by a method wherein one short-circuited end of a stator winding is connected to one side of a power supply and the other end connected via a capacitor for phase-shifting is connected to the other side...
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JPH10231662A |
To obtain a sliding door automatic opening and shutting device without requiring any wide space for installing it at a low cost and to surely recognize the position of the sliding door. Magnets 16 and 17 are formed in the vicinity of the...
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JPH10231660A |
To make it possible to definitively recognize a person or an object caught by a sliding door by stopping or reversing the traveling of a sliding door when a slow speed start signal is not detected within a sliding door travel setting tim...
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JP2791515B2 |
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JP2791837B2 |
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JPH10229635A |
To prevent motor lock detection from delaying, which is caused by a change in a preset rotational speed, by applying a constant bias voltage to a command constant voltage detection part of a lock detection circuit, and detecting an almos...
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JPH10224979A |
To provide a circuit for detecting motor lock accurately regardless of fluctuation of power supply voltage. A massage machine 11 comprises a motor 17 to be fed with a drive current from an AC commercial power supply 24 through feeder lin...
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JPH10225157A |
To enhance stability during a stop by interposing a function calculator between a deviation counter and a DC converter and providing a servo motor with a speed command determined according to a specified calculation formula thereby short...
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JPH10220108A |
To decrease collision sound which occurs when a window glass is lowered to reach the completely opened position. A pulse sensor detects a pulse signal synchronized with the revolution number of a motor 5. A positional sensor 29 detects t...
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JPH10210778A |
To provide a method and a system for applying brake to a DC polyphase motor. A circuit 8 generating an output signal indicative of deceleration of a motor 12 at least to an actual rotational speed comprises a first counter 70 counting sp...
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JPH10210708A |
To provide size and manufacturing cost reduction without consuming electric power while a brake is being operating by forming a moving means, such as a spring, which a rotor moves and displaces in one direction of a fixed frictional memb...
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JP2782578B2 |
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JPH10200699A |
To suppress a wasteful switching operation, based on current feedback by turning off all motor drive circuits at the time of stopping a motor for driving a scanner by setting a target rotation speed and a target display current value. Wh...
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JPH10201271A |
To raise operativity and stability by providing a seting means apart from a motor part, with easier resetting operation. A motor 1 for moving/driving a load and a control block 10 are provided. The control block 10 is provided with a set...
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JPH10201008A |
To provide a regenerative braking device for an electric vehicle which makes it possible to obtain the optimum braking force by automatic regenerative brake in compliance with the driving conditions of the vehicle and road conditions ahe...
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JPH10191592A |
To eliminate restrictions on mechanical design by employing a non- unitary brake where a fixing part is disused by incorporating a brake winding in a flange, shortening the overall length of a motor by an amount corresponding to the thic...
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JPH10191673A |
To surely perform the OFF operation even if the power supply voltage is fluctuated when an energization control circuit is formed of an emitter- follower circuit. A mirror housing of a body 1 is turnably provided by an internal motor 2. ...
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JPH10191674A |
To display a braking force when a motor is braked so as to be stopped or the like in an emergency for control, and to stabilize a sampling- controlled magnetic-field magnetic flux and the operation of the motor by providing a conductor w...
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JPH10184249A |
To make it possible to detect a draw-out limit point for a curtain drawn from a winding roll based on diving time of a synchronous motor for driving the winding roll without using any special sensor. A winding roll 5 for winding a curtai...
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JP2771719B2 |
PURPOSE:To obtain the water stream suitable for the load quantity and quality of the washing by setting the number of revolution of a DC brushless motor, revolution angle, starting-up speed and starting-down speed of the number of revolu...
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JP2771796B2 |
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JPH10174486A |
To provide an overload protector which can predict an overload state before a motor is stopped by overload protection. The overload detector comprises a torque detection circuit 1 for detecting the load state of a motor, a first comparat...
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JPH10174276A |
To provide a protection device that is simple, inexpensive, and compact when it is operated efficiently by inverter control. The rotary speed of a motor 1 is detected by a rotary speed detection means that is constituted of a sensor magn...
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JPH10174275A |
To provide a motor starter for an electric circuit by providing it with an overload relay for generating trip signals as the functions of a current value that it has sensed, the first time constant, and the second time constant. A motor ...
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JPH10164862A |
To make it possible to utilize regenerative power from a motor effectively by a simple circuit by a method wherein an inverter bridge by which DC power smoothed by a capacitor is converted into AC power so as to be supplied to the motor ...
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JPH10161749A |
To provide a motor stopping position controller and its control method which automatically correct a stopping position to stop precisely at a decided position. A time from a time when a motor 11 is rotated and a sensor 9 detects a slit 1...
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JP2767243B2 |
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