Abstract: A motor control device comprising a control board for controlling driving of an electric motor, the control board including a multilayer circuit board having inner layers and outer layers, a ground pattern disposed around an output shaft of the electric motor formed on one of the inner layers, and a severed portion formed on a part of the ground pattern, so as to sever through the ground pattern in a radial direction of the output shaft. The construction reduces noise from the motor control device.

Abstract: When stopping operation of an electric power steering apparatus, a motor relay is kept in an on-state even after a power supply relay is in an off-state. A drive control portion sets a target value of a d-axis current to a value other than zero and sets a target value of a q-axis current to zero, and performs a processing same as that at the time of rotating a motor. MOS-FETs contained in a motor driving circuit are controlled such that each of driving currents of the two phases or more is not zero and the brushless motor does not rotate even supplied with these driving currents. Electric charge accumulated in a capacitor is discharged via the MOS-FETs each in an on-state, a motor relay and the windings of the brushless motor. The electric charge accumulated in the capacitor may be discharged via the excitation coil of the motor relay.

Abstract: The function expanding method for a display device comprises: a step of preparing a plurality of types of function expanding modules; a step of selecting a function expanding module or modules from the plurality of types of function expanding modules; and a step of stacking the selected single or plurality of function expanding module(s) to a rear part of the display device at will, and connecting the module(s) by using expanding connector(s).

Abstract: A motor control device comprising a control board for controlling driving of an electric motor, the control board including a multilayer circuit board having inner layers and outer layers, a ground pattern disposed around an output shaft of the electric motor formed on one of the inner layers, and a severed portion formed on a part of the ground pattern, so as to sever through the ground pattern in a radial direction of the output shaft. The construction reduces noise from the motor control device.

Abstract: When stopping operation of an electric power steering apparatus, a motor relay is kept in an on-state even after a power supply relay is in an off-state. A drive control portion sets a target value of a d-axis current to a value other than zero and sets a target value of a q-axis current to zero, and performs a processing same as that at the time of rotating a motor. MOS-FETs contained in a motor driving circuit are controlled such that each of driving currents of the two phases or more is not zero and the brushless motor does not rotate even supplied with these driving currents. Electric charge accumulated in a capacitor is discharged via the MOS-FETs each in an on-state, a motor relay and the windings of the brushless motor. The electric charge accumulated in the capacitor may be discharged via the excitation coil of the motor relay.

Abstract: A print board that is to be connected to a motor includes a wiring layer in which a driving current flows. A bolting through hole is provided close to the wiring layers. Meanwhile, a power terminal of the motor is in the form of nuts. A bolt is inserted into the through hole and is threaded into the power terminal.

Abstract: A plural station memory data sharing system in which packets are sent/received between plural stations interconnected through communication lines. Each station has a unique station address value, and the time is made to correspond to each station address value. The internal clock (39) in each station indicates the same time and circulates from time T00 to an upper limit time TM. When the internal clock (39) indicates a time corresponding to the station address value of a station, data stored in a memory at the address position corresponding to the station address value is buried in a packet and the packet is sent through a communication line. An allowance time error sensing circuit (34) compares the calculated correct time of the internal clock of the station and the time indicated by the internal clock, If the error is out of an allowance range, the internal clock (39) is forcedly calibrated to the correct time.

Abstract: It is an object of the present invention to make it possible to optionally configure various types of electronic counters. Therefore, the present invention is provided with a one-chip microcomputer 12 having a built-in ROM 13 and RAM 14 to write data corresponding to a variable on a program input through a communication port 10 and an interface 11 in the RAM 14.

Abstract: A housing body of electronic equipment has a square base body having a circumferential wall and a box-like case assembled with the base body. The base body has a built-in printed board assembly including first, second and third printed boards of which the first and second printed boards are arranged above one another, and the third printed board has engaging pawls formed at both its end portions engaged with one side of the first and second printed boards perpendicular thereto. The base body is provided with a plurality of printed board engaging members at an inner side of its circumferential wall, and with first support portions and struts in the vicinity of four corner portions of the base body. Each strut of one pair of struts opposed to each other is provided at its opposed face with a guide groove and with a printed board engaging hole which communicates with the guide groove.

Abstract: This invention is a bicycle torque detection apparatus for a bicycle having a pair of cranks each having a pedal, and a rotating shaft supporting the cranks to allow a user to step on the pedal to turn the cranks and drive a gear engaged with a chain. It comprises a detection section or rotating shaft consisting of magnetic alloy having magnetic anisotropy, the permeability of said detection section or rotating shaft being changed by torsional stress caused by the rotation of the cranks, and a coil unit disposed on the outer circumference of the detection section or rotating shaft to detect a change in the permeability of the detection section or rotating shaft.

Abstract: A controlled method of operating a programmable controller containing a program storage section including memory means in which a plurality of programs are stored with each program having a master reset flag and corresponding to a stage consisting of one or more control programs for performing control functions when the control programs in each stage are executed. In accordance with the method, a series of programs each corresponding to a stage is read out from the memory means with the control programs of each stage executed when both a master reset flag for a stage, which is reset in initialization, and a stage status corresponding to each of the read out stages meet a predetermined relationship. When executing a control program, a status for a subsequent macro-block is set or reset. The macro-block consists of a plurality of stages. When the status of the macro-block is set, the master reset flag for a stage is subsequently reset at the beginning of the macro-block.