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Patent Searching and Data


Matches 2,051 - 2,100 out of 10,389

Document Document Title
JP2002341944A
To provide a method and a system for the emergency stop of a servo position controller which allows the servo position controller to stop with deceleration similar to a case that a position control loop is substantially broken without re...  
JP2002345276A
To reduce the number of connecting wires between a moving system and its controller.The downstream end of a current path of current passed through an ascent relay coil 22U and an upper limit switch 26LSU is connected with a position PU l...  
JP2002345275A
To provide a motor drive circuit wherein malfunctions of a semiconductor switch element are prevented and thus breake of the circuit due to the malfunctions is prevented.The motor drive circuit 1B is provided between the gates of FETs M1...  
JP3350255B2  
JP2002335699A
To provide a controller of an AC motor which can automatically discriminate a type of a motor.This AC motor controller has a motor type discrimination means which outputs a voltage command to discriminate a type of a motor connected to t...  
JP2002335684A
To provide a mirror motor control circuit which can relieve a rectifying switch means such as a MOS-FET, etc., from heating caused by a long time current application.This control circuit has transistors 42 and 44 having base terminals to...  
JP3348516B2
PURPOSE: To simplify a circuit construction and to eliminate the fuluctuation of time from the stoppage to the door opening of an elevator by integrating a speed deviation between a rotating speed of a motor and a speed command multiplyi...  
JP3345336B2  
JP3344144B2
PURPOSE: To provide a braking control apparatus by which the loss, of regenerative electric power, generated when the number of revolutions of a motor used to start a delay control operation is made constant is prevented or reduced and w...  
JP3344011B2
PURPOSE: To provide a DC motor drive controller with simple constitution which does not produce any time lag at the time of transfer to plugging braking from regenerative braking, and is capable of obtained excellent braking feeling. CON...  
JP2002325492A
To provide stable limitation characteristics from a low-frequency range to a rated frequency range of the output frequency, without being affected by the difference in the torque current detector or the torque computing unit, when regene...  
JP2002325311A
To provide a vehicle equipped with a super condenser for energy recovery in braking.The vehicle is provided with an engine 101 driving an alternator 111. Electrical energy supplied from the alternator is fed into a driving electromotor 2...  
JP3335797B2  
JP2002305897A
To surely prevent a voltage from being applied in the reverse direction to the inertial rotation of a DC motor.A control circuit is equipped with a DC motor 8 which is rotated to either an ascent side or a descent side by switching the p...  
JP3333851B2
PURPOSE: To reduce a decreasing rate in time in output current, by keeping all three-phase upper arm elements under OFF control, while three-phase lower arm elements are kept in each On or OFF control command state. CONSTITUTION: In a th...  
JP2002291296A
To provide starter of an internal combustion engine for a vehicle, which enables a generator motor to be downsized without decreasing starting properties of the internal combustion engine.The generator motor 3 is regularly stopped in a p...  
JP2002287005A
To move a driven object to a target position with high precision by preventing not only the phase shift between a position detection signal for coarse adjustment and a pulse signal for fine adjustment which are used for the brake driving...  
JP2002284490A
To provide a lifting circuit for a lifting gear allowing the lift-up/down of a material, utilizing a regenerative current generated by a motor during lifting down a lift shelf, as a driving current into a mechanical brake for the materia...  
JP2002532910A
The invention relates to a drive unit for units of a motor vehicle such as window lifters,wipers or the like, comprising an electric motor (10), a power switch arranged in the electric power circuit of the electric motor (10) and a contr...  
JP3330065B2  
JP2002281776A
To provide a motor driver high current protector.This motor driver (8) high current protector includes a voltage source, a current sensor (10), a comparator (12), a switch (14), a delay circuit (16), and an inhibitor (18). The current se...  
JP2002277459A
To provide an inexpensive Magnus device of a simple constitution capable of effectively rotating and driving a rotating arm supporting a dispensing tube through the use of an inexpensive induction motor while securing accuracy in positio...  
JP2002271916A
To provide a method for drive control of a vehicle motor which can manage both a sufficient braking force and smooth stop performance on a slope and on a level ground and has high safeness.When an operation force is not detected for a pr...  
JP2002271976A
To provide a new motor driver having an active snubber circuit.A motor driver is inserted in a part between an external power source and an electric motor, which is driven in a first and second states and generates an inductive flyback c...  
JP2002272177A
To detect failures in each switching element, using a simple structure, and to improve reliability by providing a resistor in the middle of a bridge circuit.In a motor drive circuit 10, a resistor 24 for reference voltages, having a larg...  
JP2002264771A
To provide a control method for a wiper device capable of absorbing various fluctuation conditions such as wind pressure and motor characteristic and realizing smooth blade operation.Right and left wiper blades 2a, 2b are driven by separ...  
JP3324851B2  
JP3324850B2  
JP2002262589A
To obtain a motor control circuit which can surely detect an abnormal (locking) state of a motor regardless of the fluctuation of a power supply voltage.In a motor drive power supply, a motor current is detected synchronously with a sign...  
JP3322614B2
To easily operate a blade to a specified angle without using an electromagnetic brake by rotating an induction motor by signals which command open and close of the blade to detect an angle of the blade and stop the induction motor, and t...  
JP2002250176A
To provide a power window device detecting pinching, which reduces the frequency of occurrence of the pinching during a blank period of detection by shortening the blank period of the detection before the pinching of the window is detect...  
JP2002247870A
To generate voltage higher than input voltage and obtain high regenerative torque when regenerative operation is executed, by using the internal impedance of an input power source effectively.When power running is executed, an inverter 2...  
JP2002247894A
To obtain a motor drive device which can always use a power of a capacitor when a motor requires a large drive force for acceleration, etc., in a short time.A regenerative circuit 11 comprising a series circuit of a regenerative capacito...  
JP3318729B2
PURPOSE: To prevent a lowering of a shutter curtain due to its own weight when a frequency conversion unit is switched to a program mode to adjust an inverter (frequency conversion unit). CONSTITUTION: When a frequency conversion circuit...  
JP3317096B2
To obtain a control effect by regenerative damping by performing on-off control for the running speed during damping while varying the on-duty ratio in accordance with the change in running speed in such a manner that the running speed d...  
JP3315783B2  
JP2002524679A
The invention relates to a process for adjusting a motor vehicle part between at least two positions, the motor vehicle part being driven by an electric motor, pulse signals being generated according to the rotary motion of the electric ...  
JP3310986B2
An adjustable speed control for use on a children's ride-on vehicle with a motor and a battery, the speed control comprising: a switch assembly interposed between the battery and the motor, the switch assembly being selectively operable ...  
JP2002218676A
To provide a reliable motor drive unit capable of prolonging a backup time for a servo controller and a control power source so that a robot arm driven by a servo motor may be stopped safely with a big idling angle when an instantaneous ...  
JP3309648B2
PURPOSE: To obtain the controller for an elevator capable of operating a dynamic brake and further reducing consumption energy as compared with the prior art controller for the elevator. CONSTITUTION: A synchronous motor 24 that a perman...  
JP3307282B2
To provide a controller which can enable the driver of an electric vehicle provided with a speed change gear for predicting the degree of the braking force which is applied to the automobile, when the driver releases the accelerator peda...  
JP3307120B2
PURPOSE: To eliminate continuation of the mechanical vibration of a motor without vibrating regenerative torque even if the detected number of rotations of the motor is fluctuated by the vibration of the motor when the number of rotation...  
JP2002200383A
To provide a sewing machine stop control device capable of accurately stopping a drive motor shaft and a sewing machine arm shaft at prescribed positions in a short time even when abruptly stopping a sewing machine from a high-speed driv...  
JP2002199773A
To provide a drive control method for compressor motor and an inverter for driving compressor, capable of avoiding sudden changes in the blow-off temperature of an air conditioner.A shunt resistor 23 converts phase current in a motor 12 ...  
JP2002199770A
To provide a new braking method for AC motor used for the AC motor for receiving supply from a frequency converter which includes an intermediate circuit.This braking method is a method of braking the AC motor used for the AC motor, to r...  
JP2002199779A
To realize a stopping method for disks including a CD and an MD which prevents a disk from non-stopping, even after a lapse of a certain time or waiting interval of longer time than is necessary for stopping, will not need more time than...  
JP3299445B2
To provide a method and a device for automatic clearance adjustment of a jib which can perform clearance adjustment easily in a short time. In a mover 2, a jib moving shaft 6, movable in an axial direction with a wedge-shaped jig 5, is p...  
JP3296706B2
To reduce the power loss of a motor drive when a reverse rotation is braked. In a motor drive circuit, a driving current in a reverse rotation direction is supplied, and the reverse rotation of a motor is braked. A resistance Rf detects ...  
JP3298329B2
PURPOSE: To improve the response characteristic of a servo controller having an integration term in its velocity control loop, by eliminating in the start time of a servomotor its followup delay generated between the input time of its po...  
JP3292988B2  

Matches 2,051 - 2,100 out of 10,389