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Patent Searching and Data


Matches 1,901 - 1,950 out of 13,796

Document Document Title
JP2009038909A
To provide a method and a stopper device for decing an origin in an actuator which returns to an origin at high speed at an end of a work area and reduces the time for deciding an origin in equipment.In this method, a slider reciprocatin...  
JP4220002B2  
JP2009504113A
The present invention relates to an electric motor (1) and the electric motor especially for textile machines. The electric motor concerned operates as a dynamo at the time of lack of service voltage, and it includes the motor circuit (3...  
JP2009022060A
To provide a controller which can be miniaturized and reduce heat generation.A regenerative control switch 9 is provided between a neutral point of a primary winding 7a of an AC electric motor 7 and an N-pole of an inverter 6. A voltage ...  
JP4214494B2  
JP2009017687A
To provide a disc-rotating device which can decrease the number of times for switching the brake mode and can make a rotating disc stop quickly.Based on a brake command signal (S2) outputted from a motor control command generating sectio...  
JP4212414B2  
JP2009501509A
[Subject] It carries out as [add / to a variable frequency drive which operates a motor which drives reciprocating-movement load / excessive voltage], and since neither DC bus line current sensor nor braking resistance is moreover needed...  
JP2009011088A
To constitute a safety apparatus only with one main magnet connector although two magnet connectors are required to interrupt power supply to a three-phase motor to star delta start for duplication in a conventional system.Since two back...  
JP2009011066A
To provide a regeneration circuit for an inverter apparatus for improving the energy efficiency of the entire apparatus, by returning regeneration current back to a DC power supply such as a battery or the like by using an inverter appar...  
JP4207365B2  
JP4206434B2  
JP2009005460A
To provide a load drive control circuit which can make a status that an overcurrent flows into a semiconductor element in a circuit hardly occur even if a connecting terminal of the circuit is short-circuited to a positive pole of a powe...  
JP2008312389A
To provide a rotary electric machine that reduces a surge voltage when a current is shut off.The rotary electric machine includes a power conversion portion, which is connected from the positive side terminal of a power source to an arma...  
JPWO2006123839A1
操舵補助トルクの発生中にモータ制御を停止 させた場合でも、モータ制御信号監視手段の 機能を停止させることなく操舵トルク補正不 足量を計算し、操舵トルク補正不足量に...  
JP2008312340A
To provide a motor controller wherein the destruction of a power element can be prevented even though a direct-current bus voltage fluctuates and a detection method for overload in the motor controller.An overload detecting means 30 incl...  
JP2008312271A
To obtain a power generation braking device which can shorten the brake distance at locking mode.The power generation braking device, having a brake mode for braking a motor using a motor current generated from the motor by regeneration ...  
JP4202384B2  
JP4203156B2  
JP4200287B2  
JPWO2008152761A
An inverter (20) which motor driving (100) changes supplied direct-current electric power into driving power for driving a motor (10), and it supplies to a motor (10), A speed control part (40) which generates a rate control signal group...  
JP2008306795A
To quickly discharge charges in a high-voltage side capacitor of a DC/DC converter.An ECU executes a program including the following steps: (S200) a switching element of the lower arm of a converter is maintained in a conductive state wh...  
JP2008306901A
To solve the problems such that there is no means to know the value of a regenerative braking resistance by only error indication when generative braking amount exceeds a permissible value and becomes an overvoltage due to being not able...  
JP2008306778A
To materialize a power generation type brake device capable of improving the power factor of a converter.The power generation type brake device is used to brake a motor by using a motor current caused by regenerative power generated from...  
JP4199695B2  
JP4195981B2  
JP2008296908A
To provide a vehicle equipped with a super-capacitor for recovery of energy on braking.The vehicle has an engine 101 driving an alternator 111. The electrical energy supplied by the alternator is fed to an electric motor 231 for driving ...  
JP4193050B2
To provide a servo drive unit further reducible in power consumption compared with a conventional one, and a control method for the drive unit. By an NC cutter 10, the power consumption can be reduced much more than the conventional one ...  
JP2008295267A
To provide a blower that collects inertia energy as regenerative energy for storage when reducing rotational speed in a rotor of the blower, and can utilize the inertia energy effectively.The blower 1 sends air by rotating the rotor 10 b...  
JP2008295143A
To temporarily operate a motor by preventing a complete stop of an inverter during regenerative operation of the motor by a conventional circuit, to notify the outside of a state that a regenerative resistor is disconnected, and to execu...  
JP2008295118A
To provide a disc drive which stops rotation of a DC motor 2 by determining a failure due to short-circuit which happens in the DC motor of the rotation drive source of a disc as quickly as possible.A control section 10 for controlling t...  
JP4186721B2  
JP2008280178A
To provide an industrial vehicle which can be controlled to reliably consume extra regenerated power which cannot be recirculated even if the regenerated power cannot be recirculated to a battery device.This control device 1 is installed...  
JP4185094B2  
JP4184199B2  
JP2008278698A
To provide a motor driving apparatus capable of reducing a shock caused by decelerating a brushless motor by means of a short brake, and performing smooth and rapid deceleration.A gate inputting unit 4 converts a braking instruction sign...  
JP2008278615A
To provide a drive controller that expands high-speed side property of an induction motor by boosting an AC voltage generated by an inverter and thereby improves the performance during power running and regenerative braking in a power co...  
JP4179346B2
At the time of charging a power storage device from a commercial power supply, electric power from the commercial power supply is applied to a neutral point of each of first and second motor generators. A rotation preventing control unit...  
JP4178588B2  
JP2008271612A
To prevent excessive current from being passed at a quick stop due to dynamic braking with respect to a motor control circuit that controls a motor through an inverter circuit.The motor control circuit is so constructed that the followin...  
JP2008269457A
To provide a positioning and stopping apparatus for enabling a proper margin distance to be left while shortening the whole moving time of a controlled object without giving any vibration and impulse to the controlled object.In a deceler...  
JP2008263733A
To reduce power consumption while immediately restarting motor rotation after a motor is stopped by an instruction from a control signal.A cooling device 200 includes a motor driving device 100, a fan motor 112, and a hall element 114. T...  
JPWO2008129623A
The smoothing capacitor (71) which accumulates the induced electromotive force which occurs with three phase induction motors (5), The regeneration transistor (81*86) which switches the terminal voltage of the above-mentioned smoothing c...  
JP2008254909A
To carry out cooling suitable for temperature rise of regenerative resistance by ON/OFF control of a cooling fan to cool the regenerative resistance to consume regenerative electric power when an electric motor to drive a rope type eleva...  
JP4169193B2
To reduce torque exceeding a compression top dead center when starting an engine. A motor G serving also as a power generator is switched to motor operation in accordance with stop instruction from a switch 33, and target number of revol...  
JP2008252966A
To provide a highly safe motor drive device that can interrupt an AC power source and that can increase regeneration processing capability easily, even if a regenerative power processing circuit fails in a short mode.The motor drive devi...  
JP2008253083A
To reduce the size and weight of a regenerative-braking resistor and facilitate its use as an on-board power supply, while protecting a capacitor from overvoltage.A positive-side terminal of a battery 2 and an anode-side terminal of a di...  
JP2008252998A
To provide a motor controller which can stop a motor quickly and can suppress unnecessary rolling.The motor controller 100 includes a circuit section 110 which can switch the drive state for rotating a motor 11 by supplying power, a firs...  
JP4164646B2  
JP2008245378A
To install a plurality of functions to a motor drive integrated circuit while suppressing an increase in the number of terminals.In the motor drive integrated circuit which includes an input terminal input with a speed control signal, an...  

Matches 1,901 - 1,950 out of 13,796