| Document |
Document Title |
|
JP2015104313A |
To provide a control circuit for a DC motor which is not damaged by BEMF.A control circuit for a DC motor has: first and second input ports for connection to a DC source; an H-bridge driving circuit, having first and second switches conn...
|
|
JP5729130B2 |
|
|
JP5719696B2 |
To enhance pulse resolution to thereby improve control accuracy of motor speed and inversion position, in a motor which controls rotational speed and direction of the motor on the basis of motor pulses.A wiper drive control unit has a CP...
|
|
JP5722205B2 |
|
|
JP5711910B2 |
A motor drive circuit includes: a drive circuit configured to drive a motor whose coil current decreases with increase in counter electromotive voltage of a motor coil; a detection circuit configured to detect whether or not a current va...
|
|
JP5713031B2 |
A motor control device (10) includes a motor lock state determining unit (23) configured to determine whether a motor (5) is in a rotation lock state; a position hold state determining unit (24) configured to determine whether the motor ...
|
|
JP5710321B2 |
|
|
JP5706538B2 |
In one embodiment, a system for reducing component noise in a motor in a automobile includes a first gate driver and a second gate driver, a high side FET; a low side FET; a charge pump circuit; a high frequency reduction component; and ...
|
|
JP5699739B2 |
|
|
JP5696764B2 |
|
|
JP5689704B2 |
A motor control device may include a position command output means, a first subtraction means that calculates and outputs a position deviation, a position control means, a second subtraction means that calculates and outputs a position d...
|
|
JP2015053759A |
To provide a motor control device that is advantageous in terms of cost and degree of freedom of design, that can grasp a drive state of a motor with high accuracy, and that can reduce an arithmetic processing burden on a microcomputer.A...
|
|
JP5682591B2 |
An image forming apparatus includes: a conveyance roller configured to convey recording sheets; a brush motor configured to drive the conveyance roller to rotate; and a control unit configured to control a rotational speed of the brush m...
|
|
JP2015041460A |
To minimize the installation space of the switch contact on a substrate, even if an operation switch during submergence on a circuit is provided separately from a normal operation switch.A normal operation switch and an operation switch ...
|
|
JP5674524B2 |
|
|
JP5674959B2 |
A direct-current power supply device includes a reactor, one end of which is connected to one output end of an alternating-current power supply, a switching unit for short-circuiting the other end of the reactor and the other output end ...
|
|
JP5669413B2 |
|
|
JP5668290B2 |
An electric operating machine comprising a motor and a power circuit driving the motor by the electric power supplied from a battery. The power circuit comprises a voltage conversion part converting an input voltage entered in accordance...
|
|
JP5664448B2 |
|
|
JP5664447B2 |
|
|
JP5661276B2 |
|
|
JP5662218B2 |
|
|
JP5660997B2 |
A motor control device has a drive circuit that drives an electric motor with a battery as a power supply, a switch element that is provided between the battery and the drive circuit, the switch element supplying a current from the batte...
|
|
JP5660996B2 |
A motor control device has a drive circuit that drives an electric motor with a battery as a power supply, a switch element that is provided between the battery and the drive circuit, the switch element supplying a current from the batte...
|
|
JP5653975B2 |
|
|
JP5654842B2 |
A load drive device (100) includes: a first terminal (LDOF) and a second terminal (LDOR) to which a load is connected; and a driver (103) which controls the terminal voltages of the first terminal (LDOF) and the second terminal (LDOR) ac...
|
|
JP5653976B2 |
The invention provides for a motor control device that includes a drive circuit (200) to drive an H-bridge circuit (100) to control a current fed to a motor (110), a drive command signal generator (300) to generate a drive command signal...
|
|
JP5651301B2 |
The invention provides a motor with a low speed start function and a soft start function. The motor includes a first pulse generation circuit generating a first pulse signal of which a first duty ratio of one of logic levels is increased...
|
|
JP2015000617A |
To suppress overcurrent flowing to a DC motor for power steering.Power conversion equipment 300 is loaded on an electric forklift, and drives a steering motor M3 based on a control command value S3 showing a rotational angle of a steerin...
|
|
JP2015002586A |
To suppress an overcurrent that flows to a DC motor for power steering.A power conversion device 300 is mounted on an electric forklift truck and drives a steering motor M3 on the basis of a control command value S3 indicating a rotation...
|
|
JP5645062B2 |
|
|
JP5647427B2 |
|
|
JP2014239590A |
To provide a driving device for a full-bridge circuit having high reliability and a power module including the full-bridge circuit.A driving device for a full-bridge circuit drives the full-bridge circuit according to a first mode that t...
|
|
JP5641638B2 |
An abnormality detection circuit monitors the sink current Irnf of a H-bridge circuit and determines the presence of an abnormal state if the sink current is not detected for a predetermined time. The abnormality detection circuit includ...
|
|
JP2014236559A |
To provide a power supply device capable of driving the existing cordless power tool for a long period of time even in a place where an AC power supply is not installed.In order to supply electric power to a power tool 20 incorporating a...
|
|
JP5639807B2 |
|
|
JP5640070B2 |
A method of controlling an electric machine, the method comprising storing a plurality of power maps, each power map comprising control values for driving the electric machine at different power, and selecting a power map in response to ...
|
|
JP2014226022A |
To provide a motor control device that can prevent incorrect detection of abnormality in an encoder.A motor control device controls the drive of a motor connected to an object, and includes rotation detection means for detecting the rota...
|
|
JP5625403B2 |
|
|
JP5628729B2 |
|
|
JP5628724B2 |
|
|
JP5629555B2 |
|
|
JP5628728B2 |
|
|
JP5617455B2 |
An electric power steering system determines a steering state of a steering wheel on the basis of a current (Im) of a motor applying assist force to a steering system and a steering speed (És) of the steering wheel. A state where the st...
|
|
JP5617460B2 |
To realize a jam decision provided with a threshold value to driving force which drives a control object, in the jam decision of a servo mechanism.There are provided: a speed measurement part which measures a speed of a driving body; a t...
|
|
JP5615490B2 |
|
|
JP5605263B2 |
|
|
JP5600949B2 |
|
|
JP2014190240A |
To provide a drive control device of a fuel pump which can drive a motor with a brush at a low voltage while removing filming by suppressing the deterioration of power consumption.A control device 1 of a fuel pump performs fuel supply to...
|
|
JP2014192999A |
To provide a motor drive circuit, which includes a current-limiting resistor, that has reduced cost for maintenance and has an overcurrent protection function applicable to various power sources, motors, and limiting resistors.A motor dr...
|
