| Document |
Document Title |
|
JP2010114963A |
To provide a motor controller wherein it is possible to more accurately recognize the rotational position of a motor in a configuration without a rotational position sensor.The motor controller includes: a first pulse wave generating mea...
|
|
JP2010110078A |
To restore data in an operation position at a volatile storage medium even if initial setting is not performed again when applied voltage is normally restored even if applied voltage to a detecting part of a motor actuator loaded on a ve...
|
|
JP2010110084A |
To provide a DC motor apparatus which can inexpensively control rotation of a DC motor with a simple structure and to provide a window switching device equipped with the DC motor apparatus.The DC motor apparatus includes the DC motor 1, ...
|
|
JP2010110171A |
To provide a motor control apparatus capable of reducing the estimation error of motor torque and a motor load caused by a temperature change.The motor control apparatus includes: a temperature sensor 4 and a temperature detection circui...
|
|
JP2010110092A |
To provide a drive device that accurately ensures and maintains reliability of an overcurrent protection function even when a threshold voltage for determining the presence or the absence of an overcurrent of a power element is set on th...
|
|
JP4462871B2 |
A back electromotive force detection circuit 12 incorporates an A/D conversion circuit 14 that converts the output from a differential amplifier circuit A 2 into a digital signal and an offset calculation circuit 15 that sets the resista...
|
|
JP2010104138A |
To prevent a field effect transistor 31 from intermittently operating.When a decision is made that a PTC thermistor 34 is in temperature protection state for controlling the change in gate-source voltage, a CPU 43 outputs a stop signal t...
|
|
JP2010098907A |
To provide an overcurrent protection circuit capable of efficiently protecting damages of a power driver due to an overcurrent while effectively utilizing the current-resistance capability of the power driver to regulate energization of ...
|
|
JP4458414B2 |
A plurality of reference signals output from a controller which computes an operation amount of an electric actuator is subjected to the logical operation, and the power supply to a drive circuit for the electric actuator is shut off bas...
|
|
JP4458926B2 |
In an electric power steering apparatus in which a third motor target current is determined from a first motor target current determined on the basis of a detection torque from a steering torque detection means and a second motor target ...
|
|
JP4459242B2 |
|
|
JP4457618B2 |
A pump drive motor control apparatus controls a motor used for driving a hydraulic pump. Every time the supply of electricity to the motor is resumed (every time the motor control signal changes from a low level to a high level), the app...
|
|
JP4453517B2 |
|
|
JP4455075B2 |
The device has a current control value generator for generating current control values for a motor with a poly-phased winding. A detecting unit detects line currents circulating across the motor. A microcontroller (5) includes an anti-ov...
|
|
JP2010088199A |
To provide a motor control circuit with a built-in trigger switch, capable of securing the stop and control of a motor by preventing an increase in a switch form.A first MOS transistor F1 supplies power to the motor M from a power supply...
|
|
JP4451651B2 |
|
|
JP2010081725A |
To provide an electrical device which is equipped with a detection means for detecting the overheat state of a brush motor without complicating the assembly structure of the electrical device.An electrical device 1 includes: a brush moto...
|
|
JP4445978B2 |
A cooling system is provided with a motor drive device, a fan motor, and a Hall element. The motor drive device includes a lock protection circuit and a lock controller. When a control signal instructing rotation of the fan motor that is...
|
|
JP4447949B2 |
In order to realize initializing sequences with high accuracy and high reproducibility, a positioning device according includes an XY slider movable in directions X and Y, an object position measuring device for measuring the position of...
|
|
JP4446752B2 |
|
|
JP4446402B2 |
|
|
JP2010068592A |
To provide an highly efficient and inexpensive DC wiper-motor with brushes, which can vary the rotational speed of the motor in three speed steps including a low speed, a high speed and an ultra-high speed, receiving little influence of ...
|
|
JP4435623B2 |
|
|
JP4438089B2 |
|
|
JP4438608B2 |
In order to protect semiconductor switching-devices employed in an H bridge circuit against an over-voltage without using a special protection circuit, a control circuit outputs a control signal to a driving circuit for driving the H bri...
|
|
JP4438668B2 |
A battery (12) is connected to a printed circuit board (PCB) (10) on which a control switching unit (7) is mounted. A microcomputer (2) mounted on the PCB controls the control switching unit in a pulse width modulation (PWM) control mode...
|
|
JP4438619B2 |
|
|
JP4433547B2 |
A motor rotational pulse generating circuit for a motor is provided which generates a correct pulse signal even at an initial turning-on stage of the motor, by adjusting a filter cutoff frequency in response to motor rotational condition...
|
|
JP4431904B2 |
|
|
JP4435068B2 |
|
|
JP4434000B2 |
To provide a motor rotation data detecting method and a motor rotation data detecting device capable of detecting rotation data accurately without causing a braking time to become longer when stopping a motor, even if rotational speed is...
|
|
JP4435585B2 |
Torque ripple of a motor due to a rotation detection device is reduced. A periodicity gain multiplier 51 multiplies the rotation angle ΒΈ of a detection target by a ripple periodic number m per rotation of the detection target. An adder ...
|
|
JP4432755B2 |
To provide an electronic device which drives a load on the basis of signal input from an outside, wherein inspection terminal blocks are provided and downsizing of these are attained. Substrates 2a, 2b, a load driving circuit 90, a contr...
|
|
JP4434709B2 |
|
|
JP4428140B2 |
An electronic control unit for producing a sufficiently boosted voltage even when a supply voltage becomes high includes an inverter that drives switching elements and converts a DC voltage into an AC voltage, and booster means which boo...
|
|
JP4424589B2 |
|
|
JP4424813B2 |
|
|
JP4423904B2 |
|
|
JP4422306B2 |
|
|
JP2010041908A |
To provide a motor drive that reduces the number of components.In a motor drive 10, a direct current voltage from a direct current power supply is applied to one electrode on a motor M, and the other electrode on the motor M is grounded ...
|
|
JP4416577B2 |
An actuator drive circuit includes a counter starting counting of a frequency-divided clock obtained by dividing a frequency of a reference clock in response to an activation signal, a D/A converter providing a converted voltage increasi...
|
|
JP4416781B2 |
A system of detecting position drift in the motor due to lost pulses. Due to imperfections in the motor, the timing of the commutation pulses is not uniform but forms a unique repeatable signature. The system identifies lost pulses by us...
|
|
JP4413686B2 |
|
|
JP4411381B2 |
A motor comprises a yoke (25) as casing, a shaft (23) extending along a center of the yoke, an annular stator (27) fixed to the yoke and an armature (24) fixed to the shaft (23) to rotate with the shaft inside the stator. The armature co...
|
|
JP4412592B2 |
|
|
JP4412839B2 |
|
|
JP2010028996A |
To provide a reciprocal mechanism, a control method therefor, a ticket cutting device equipped with the reciprocal mechanism, and a sheet processing device, for stopping a movable member driven with a DC motor at a target position while ...
|
|
JP2010028878A |
To provide a motor controller that controls a current even at a large current, and is compact at a low cost.The motor controller controls a motor with a brush that is driven so that unidirectional load may be larger than reverse rotating...
|
|
JP2010029052A |
To expand an interval of PWM (pulse-width modulation) in a DC-motor controlling process and a region giving linearity to a motor current.The DC-motor control is performed by means of PWM repeating the normal/reverse rotation of the motor...
|
|
JP4407033B2 |
|
