| Document |
Document Title |
|
JP4168517B2 |
To provide a controller of a DC fan motor for reducing consumption at stoppage of a DC fan motor. A controller includes a DC fan motor having desired revolutions by switching a motor drive DC voltage applied to a motor winding 6, a switc...
|
|
JP4168240B2 |
|
|
JP2008248747A |
To provide a fan control method and a fan control device capable of suppressing vibration of a casing.The fan control device controlling action of a fan mounted on a casing as one body based on data corresponding to specified rotation sp...
|
|
JP3145508U |
To provide a brushless motor capable of controlling the strength of magnetism of a magnetic pole. A stator having a plurality of magnetic pole coils and winding by a three-phase input method and an electromagnetic pole formed from a plur...
|
|
JP2008244841A |
To adjust change timing of a PWM signal at short intervals.This PWM signal generation circuit generates the PWM signal and is provided with a counter which updates a count value based on an oscillation signal with a predetermined frequen...
|
|
JP4163607B2 |
|
|
JP4161872B2 |
To provide an internal combustion engine starting device capable of achieving a sufficient field flux without enlarging an electric motor for starting an internal combustion engine even when the electric motor for starting the internal c...
|
|
JP4160778B2 |
|
|
JP4160852B2 |
|
|
JP2008236850A |
To accurately detect a fault without newly installing a fault detection sensor in addition to a control sensor.In the motor control device which controls a DC motor on the basis of a detection value of a stroke sensor 7 for detecting the...
|
|
JP2008236898A |
To provide a motor drive and a motor driving method, with which stable rotation control can be conducted, even if an abnormality occurs in the external control signal.The motor drive 2 PWM-controls a motor M based on the external control...
|
|
JP2008230540A |
To provide an electric power steering device diagnosing failure of a temperature detection device and certainly preventing thermal destroying of a motor and a motor drive circuit by suppressing driving of the motor when it is diagnosed a...
|
|
JP4158253B2 |
|
|
JP4158429B2 |
|
|
JP4158581B2 |
|
|
JP4158782B2 |
|
|
JP2008228520A |
To achieve power-saving by reducing drive power, while reducing a current which has been wasteful and flows continuously as a DC resistance component.A motor driving device turns ON a switch SW1 and a switch SW4 among switches SW1-SW6 an...
|
|
JP4155107B2 |
|
|
JP4154323B2 |
|
|
JP4154739B2 |
|
|
JP2008220047A |
To provide an actuator driving device that highly accurately detects the voltage across actuator while detecting disconnection of the actuator.A switching element 5 is connected with a motor 11 and a connection point thereof is connected...
|
|
JP2008215949A |
To provide a compact and low-cost current measuring apparatus used for a motor.The current measuring apparatus 4 for measuring current flowing in the motor 1 is equipped with: a diode D1 being connected in series with the motor 1 on the ...
|
|
JP4151439B2 |
|
|
JP4150133B2 |
|
|
JP4151067B2 |
|
|
JP2008537460A |
The invention relates to a control circuit for controlling the power supplied from a power source to an electromotor, whereby the control circuit comprises a semiconductor switching element connected in series to the electromotor and the...
|
|
JP4147965B2 |
|
|
JP2008206273A |
To restrain the state of a driver from not shifting, being caused by the generation of torque ripple.The motor controller includes (a) a sensor which detects whether a driven body, which shifts from the first state to the second state, b...
|
|
JP4144348B2 |
The starting system has two starter motors, one driving through epicyclic gears and the other through belts. If a fault is detected in starting using one motor (4), the other motor (5) is activated. A fault in starting is detected by mea...
|
|
JP4145002B2 |
|
|
JP2008535458A |
Drive assemblies for electric roll tubes are provided, including motors and gear assemblies with multiple gear stages. The motors of the drive assembly are operated inefficiently at motor speeds below 50% of the peak efficiency motor spe...
|
|
JP2008195246A |
To take full advantage of a steering function of an electric motor, such as a steering assist function, by reducing frequency of use of temporary estimated temperature data.A microcomputer stores the motor's estimated temperature data wh...
|
|
JP4140139B2 |
|
|
JP4140417B2 |
|
|
JP4142142B2 |
The device has a center tap (MA) provided between an output stage switch (T1) and an inductive load (L) and connected with a measuring circuit (MS). A control circuit (SS) creates a measurement breaking interval by suppressing a pulse wi...
|
|
JP4140099B2 |
|
|
JP2008193859A |
To provide a DC motor controller which stably controls a traverse motor, even if the applied voltage of the traverse motor is not larger than the starting voltage.The DC motor controller is provided with a determining means 341 for deter...
|
|
JP4135437B2 |
|
|
JP4137091B2 |
|
|
JP4136672B2 |
|
|
JP4136212B2 |
|
|
JP4136484B2 |
|
|
JP4134509B2 |
To provide a charger which is simple for a secondary battery. A capacitor C1 is disposed on the input side of an inverter and connected to a power supply for charging through a diode bridge D1. When charging, the junction of the star-con...
|
|
JP4136823B2 |
|
|
JP2008187873A |
To surely diagnose a failure in switching elements at a stoppage, even if, naturally, a motor is operating.When the motor 8 is deactivated or operated under PWM control, a CPU 6 controls the switching elements (FET11, FET12, FET13, FET14...
|
|
JP2008187838A |
To provide a DC motor control unit capable of facilitating control of the maximum torque generated by a DC motor without performing a complex operation.This DC motor control unit includes: the DC motor for driving a roller; a motor drive...
|
|
JP4131393B2 |
An electric power steering control unit is provided which is capable of detecting a motor current stably irrespective of a temperature variation to improve steering feelings. In this control unit, a temperature detecting circuit located ...
|
|
JP4131588B2 |
To provide control equipment, capable of reducing capacity and saving energy of a switching element constituting a drive means at the driving of a DC motor. Control equipment is constituted of DC fan motors 7, 8 and a plurality of switch...
|
|
JP4129118B2 |
The invention relates to a control circuit for a direct current motor with a reverse pole protection device, which is connected to the electric circuit of the electrolytic capacitor and the free-wheeling diode in order to reduce losses i...
|
|
JP4129126B2 |
PURPOSE: To provide a drive control method of high efficiency and reliability for a linear compressor of a free piston structure. CONSTITUTION: This drive control method for the linear compressor is provided with a compressing mechanism ...
|
