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JP2005006384A |
To enhance the workability by moderating variation in the r.p.m. of a motor when a work is started using a power tool.The trigger 3 of an electric screw driver controls start/stop and moves the sliding contact of a variable resistor 6. A...
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JP3606088B2 |
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JP3604607B2 |
To improve convenience without casing complication of a switch circuit. Whether a sliding door closing switch is operated or not is judged (S11) while a slide door 4 is closing (S10), and whether a sliding door opening switch is operated...
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JP3600894B2 |
During start-up a telegraph-start circuit for a DC motor withholds exciting current from the stator field coils during alternative ones of the polyphase commutation signals used when the motor is running. This produces a high starting to...
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JP3597409B2 |
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JP3595155B2 |
To inhibit the rush current to a power source stabilizing capacitor by providing a precharge circuit. A precharge circuit comprising a diode 38 and a resistor 40 is mounted. When an ingition switch 52 is turned ON, a power source stabili...
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JP2004335656A |
To enable automatic change control of strong excitation/weak excitation/non exciting, and further correct and arbitrary switching, and restrain generation of noise resulting from chattering by changing a solenoid automatically in weak ex...
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JP2004336885A |
To provide a power output device suitable for a mechanical distribution type hybrid vehicle.A control unit CPU184 generates an H-level signal SE according to a signal STON outputted from a start key and outputs it to a relay 40, and turn...
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JP3591628B2 |
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JP2004328809A |
To reduce the capacitance of an inverter for switching an induction motor.In order to control for switching a plurality of induction motors 3-1 to 3 driven by an inverter 2 to a standby induction motor 3-4, a direct-input switch 4-d4 of ...
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JP2004320936A |
To provide an engine generating apparatus capable of reducing the capacity of an engine generator with a motor as a load, close to the capacity of the motor during steady operation.The engine generating apparatus is provided with an engi...
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JP2004320861A |
To provide a low-cost controller for a three-phase motor-generator by doing away with a PWM (pulse width modulation) control system and controlling the angle of advancing phase and the angle of energization of a current in a three-phase ...
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JP2004308645A |
To provide an engine starter capable of starting up an engine without causing voltage decline of 2V or more during engine startup time.An engine starter 1 is equipped with a motor 2, having a series coil 2b and a shunt coil 2c; a startup...
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JP2004306903A |
To provide a drive for detecting errors adapted to the optimum amount of operation according to a change in environment, to provide a method for detecting errors in the amount of operation, and to provide a program for detecting errors i...
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JP2004312950A |
To provide an engine starter capable of enhancing the starting performance of an engine.A motor circuit 6 is connected with a circuit 10 for bypassing a series coil 2b and provided with an element 11 for controlling a bypass current. A l...
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JP2004298529A |
To provide a drive controller for a sewing machine motor, which smoothly starts up a sewing machine corresponding to a torque varying against temperature.This drive controller for a sewing machine detects that temperature of a sewing mac...
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JP3581231B2 |
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JP2004289962A |
To obtain characteristics similar to series characteristics which obtain large torque at start by simple control, in an induction motor.This control method is constituted such that a field current with its frequency and itself controlled...
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JP2004275388A |
To suppress driving of a motor even when a power switch is turned on in a state where a starting/stopping signal generation means is set to a motor starting position while number of parts is suppressed.The safety controller for a sewing ...
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JP2004282948A |
To provide a synchronous input system for a synchronous motor capable of facilitating a change in a compensation value for a phase, properly synchronizing a frequency and voltage without applying shock to the synchronous motor and a syst...
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JP2004274896A |
To provide a motor starter which appropriately starts a motor.The motor starter 20 for starting a motor 10 having main winding M and starting winding S comprises a first positive temperature coefficient thermistor 22 and a triac 26. The ...
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JP3571666B2 |
A dishwasher comprising: a wash chamber adapted to accommodate dishes and within which wash liquid is circulated, a rack within said chamber which supports dishes above the floor of said chamber, a rotatable spray arm having liquid disch...
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JP3570289B2 |
To obtain a motor controller in which a dark current is prevented from flowing through a controller by interrupting the power supply to the controller after resetting the motor load when a key switch is opened. A power supply on/off circ...
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JP3567542B2 |
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JP3568532B2 |
PCT No. PCT/NL93/00196 Sec. 371 Date May 11, 1995 Sec. 102(e) Date May 11, 1995 PCT Filed Oct. 6, 1993 PCT Pub. No. WO94/08121 PCT Pub. Date Apr. 14, 1994A revolving door lock is positioned on an inner space of the building and is sealed...
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JP2004260943A |
To provide a method and apparatus for controlling the operation of a variable speed motor capable of smoothly resuming the operation control of a variable speed motor at power restoration after power supply is stopped or a supplied volta...
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JP3566595B2 |
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JP3566577B2 |
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JP3559950B2 |
To arrange a constitution such that obstacle sensing and limit sensing can be set to sensing precision different between the time of opening sensing and the time of closing operation, in an electrical switch for building which detects th...
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JP2004229499A |
To provide a device and method for controlling the supply of a current and electrostatic capacitance to a compressor that can prevent an overcurrent from flowing into a main winding line of the compressor.A control signal generating part...
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JP2004523995A |
A speed controller operates a DC-powered fastener drive assembly to efficiently drive fasteners from a DC power supply, thereby achieving a fully portable hand tool. In particular, the speed controller accelerates a flywheel with a DC mo...
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JP2004211572A |
To enhance starting responsivity (realize a shortened starting response time) when a belt driven engine starter starts an engine.The engine starter is of a belt driven type which starts the engine 2 by transmitting the rotating output of...
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JP2004210159A |
To reliably prevent troubles in motor drive or the like caused by biting of foreign matters as a seat is moved, to ensure an occupant walk-in space, a cargo space in an automobile, or the like, and to reliably adjust a series of motions ...
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JP2004208442A |
To provide a driver-controller for actuator, capable of preventing noise from being produced when a motor is started or stopped.One of the lower arms of an H-bridge circuit 51 is constituted, by connecting two field-effect transistors T3...
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JP2004208492A |
To provide a inrush motor current preventing and dynamic breaking apparatus capable of reducing the number of components, size, and the costs by sharing an inrush current prevention circuit and a dynamic break circuit.The inrush motor cu...
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JP2004208363A |
To test a motor with significantly economical small-sized power supply equipment.This frequency converter comprises a first and a second current transformers for detecting the output current of a CVCF inverter 2, an overcurrent setting c...
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JP3543625B2 |
To discriminate the polarity even on occurrence of a fault in a polarity detection circuit in the signal transmission through a couple of signal wires with different polarity. In addition to a polarity detection circuit 10 that detects t...
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JP2004187487A |
To provide a drive system for driving a plurality of permanent magnet built in type synchronous motors by one inverter which has higher starting characteristics than that a prior art has without lowering efficiency at synchronization or ...
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JP2004166480A |
To provide a power feeding device and a method for motor power supply capable of using resistance for inrush prevention and protection against overvoltage, and of reducing the number of parts and manufacturing cost in designing a circuit...
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JP2004163947A |
To provide an image reader in which positioning control and braking control by a DC motor can be performed with high precision and in which motor vibration can thereby be reduced to improve image reading accuracy.A motor drive controller...
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JP2004159491A |
To provide a motor generator power conversion regulator wherein footprint is small and efficiency of a transformer is superior.The motor generator power conversion regulator (110) is provided with a rectifier (110) which is electrically ...
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JP3531498B2 |
To control a motor by accurately obtaining the final stop position of the rotating member without receiving influence of elongation of wire coupling between a DC servo motor and a valve. A rotating member 2 to be driven with a DC servo m...
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JP3532815B2 |
To optimize driving of a linear motor by mounting a sensing magnet part on one side face of a member for shielding magnetic flux generated from a plurality of permanent magnets, detecting magnetic flux at the sensing magnet part and cont...
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JP2004515188A |
A motor current control method is provided to reduce voltage and current spikes within a spindle motor and a power supply. Subsequently, the amount of current applied to the spindle motor is monitored. In addition, an apparatus for limit...
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JP2004147394A |
To provide a control system where a synchronous motor is connected via first and second circuits provided in parallel on the output side of a power converter and the above first circuit is provided with a transformer and a first breaker,...
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JP2004140943A |
To provide a power conditioner arrangement excellent in stability wherein the duty ratio and frequency in PWM (Pulse Width Modulation) are simultaneously varied from low values to high values and alternating-current power supply is start...
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JP2004138840A |
To provide an image forming apparatus for which a low-voltage power source having a small current capacity can be used by controlling peak of current consumption in a printer.A current detection circuit is arranged in a power source line...
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JP2004134296A |
To provide a switch device causing no switch damage even if high power source voltage is applied, and requiring no large switch unit.A switch A and a switch B can get a motor stop mode, a motor normal rotation mode, and a motor reverse r...
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JP2004129376A |
To provide an operation control method for an electromagnetic drive mechanism capable of high-speed repetitive operation.This operation control method for the electromagnetic drive mechanism 1 comprises a process of applying attraction v...
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JP2004120819A |
To suppress a startup current to start a plurality of loads whose current is to be suppressed, using a power convertor.The output power of a power storage battery equipment 3 is converted into an AC power with an AC-DC converter 4. To pe...
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