Abstract: The present invention includes: first to fourth Hall elements for detecting steering torque; a first power supply circuit for supplying power to the first and second Hall elements; a second power supply circuit for supplying power to the second and third Hall elements; and a control device including a first abnormality determining unit for determining whether first and fourth torque signals are abnormal by preparing the first torque signal output from the first Hall element with the fourth torque signal output from the fourth Hall element and a second abnormality determining unit for determining whether second and third torque signals are abnormal by comparing the second torque signal output from the second Hall element with the third torque signal output from the third Hall element. With this, even when abnormality occurs in one of the first and second power supply circuits, the abnormality determination of an output signal can be continued.

Abstract: Provided is a torque sensor that allows a surface-mount magnetic sensor to be disposed between magnetic collection rings adjacent to each other in a radial direction with respect to a rotational axis.

Abstract: The present invention includes: first to fourth Hall elements for detecting steering torque; a first power supply circuit for supplying power to the first and second Hall elements; a second power supply circuit for supplying power to the second and third Hall elements; and a control device including a first abnormality determining unit for determining whether first and fourth torque signals are abnormal by preparing the first torque signal output from the first Hall element with the fourth torque signal output from the fourth Hall element and a second abnormality determining unit for determining whether second and third torque signals are abnormal by comparing the second torque signal output from the second Hall element with the third torque signal output from the third Hall element. With this, even when abnormality occurs in one of the first and second power supply circuits, the abnormality determination of an output signal can be continued.

Abstract: The prevent invention provides a motor control apparatus and a power steering apparatus capable of preventing or reducing deterioration of a detection accuracy of a magnetic sensor. A magnet holder configured to rotate integrally with a magnet and made from a magnetic material is provided on an outer peripheral side of the magnet provided so as to face a magnetic sensor.

Abstract: Provided is a torque sensor that allows a surface-mount magnetic sensor to be disposed between magnetic collection rings adjacent to each other in a radial direction with respect to a rotational axis.

Abstract: The prevent invention provides a motor control apparatus and a power steering apparatus capable of preventing or reducing deterioration of a detection accuracy of a magnetic sensor. A magnet holder configured to rotate integrally with a magnet and made from a magnetic material is provided on an outer peripheral side of the magnet provided so as to face a magnetic sensor.

Abstract: First and second microcomputers are connected to a ground. A first reference voltage generation circuit is connected between a first power supply and the first microcomputer, and supplies a first reference voltage to the first microcomputer when voltage of the first power supply is higher than the first reference voltage. A first monitoring circuit is connected between a second power supply and the first microcomputer, and supplies the first microcomputer with a first monitoring voltage for monitoring the second power supply. The first microcomputer includes a part configured to perform an operation based on the supplied first reference voltage and the supplied first monitoring voltage, wherein the operation includes detecting abnormality in the voltages of the first and second power supplies, and determining which one of the voltage of the first power supply and the voltage of the second power supply is abnormal.

Abstract: First and second microcomputers are connected to a ground. A first reference voltage generation circuit is connected between a first power supply and the first microcomputer, and supplies a first reference voltage to the first microcomputer when voltage of the first power supply is higher than the first reference voltage. A first monitoring circuit is connected between a second power supply and the first microcomputer, and supplies the first microcomputer with a first monitoring voltage for monitoring the second power supply. The first microcomputer includes a part configured to perform an operation based on the supplied first reference voltage and the supplied first monitoring voltage, wherein the operation includes detecting abnormality in the voltages of the first and second power supplies, and determining which one of the voltage of the first power supply and the voltage of the second power supply is abnormal.

Abstract: A power steering apparatus including a steering shaft, a sensor coil disposed on an outer circumferential side of the steering shaft and detecting a change in impedance value to determine an amount of relative rotation of an input shaft and an output shaft of the steering shaft, a steering housing including a first housing and a second housing, a sensor substrate disposed on the first housing, a neutral point regulating circuit on the sensor substrate which includes a resistor connected to the sensor coil and variably regulates a resistance value of the resistor so as to regulate the impedance value at a neutral point at which the amount of relative rotation of the input shaft and the output shaft is zero, and an electric motor which is driven and controlled in accordance with an output signal of the sensor coil regulated by the neutral point regulating circuit.

Abstract: A connecting structure to connect electronic components electrically through a plurality of conducting lines each including a covered segment including a wire conductor covered with an insulating covering and an uncovered segment includes a molding unit and a sealing unit. The molding unit encloses a boundary portion between the covered segment and the uncovered segment of each of the conducting lines so that the uncovered segments project in a first direction from a first end of the molding unit and the covered segments project in a second direction from a second end of the molding unit, and thereby holding the conducting lines to fix positions of the conducting lines relative to one another. The sealing member of an adhesive adheres to the second end of the molding unit and adheres to each of the covered segments of the conducting lines projecting from the second end of the molding unit.

Abstract: A method for producing a connector has first to fifth processes. In the first process, a contact unit having a plurality of contacts and a tying part, is formed with the contacts tied at each axial direction middle part of the contacts by the tying part and with the contacts arranged parallel to each other. In the second process, a plating layer is formed on a part of the contact unit by soaking the contact unit in a plating bath from an axial direction one end side of the contact unit to an axial direction middle part of the tying part. In the third process, the contacts are isolated by cutting the tying part. In the fourth process, a part where the plating layer is formed, of the contact is inserted into a hole of a circuit board. In the fifth process, the contacts are soldered to the circuit board.

Abstract: A connecting structure to connect electronic components electrically through a plurality of conducting lines each including a covered segment including a wire conductor covered with an insulating covering and an uncovered segment includes a molding unit and a sealing unit. The molding unit encloses a boundary portion between the covered segment and the uncovered segment of each of the conducting lines so that the uncovered segments project in a first direction from a first end of the molding unit and the covered segments project in a second direction from a second end of the molding unit, and thereby holding the conducting lines to fix positions of the conducting lines relative to one another. The sealing member of an adhesive adheres to the second end of the molding unit and adheres to each of the covered segments of the conducting lines projecting from the second end of the molding unit.

Abstract: A power steering apparatus including a steering shaft, a sensor coil disposed on an outer circumferential side of the steering shaft and detecting a change in impedance value to determine an amount of relative rotation of an input shaft and an output shaft of the steering shaft, a steering housing including a first housing and a second housing, a sensor substrate disposed on the first housing, a neutral point regulating circuit on the sensor substrate which includes a resistor connected to the sensor coil and variably regulates a resistance value of the resistor so as to regulate the impedance value at a neutral point at which the amount of relative rotation of the input shaft and the output shaft is zero, and an electric motor which is driven and controlled in accordance with an output signal of the sensor coil regulated by the neutral point regulating circuit.

Abstract: A method for producing a connector has first to fifth processes. In the first process, a contact unit having a plurality of contacts and a tying part, is formed with the contacts tied at each axial direction middle part of the contacts by the tying part and with the contacts arranged parallel to each other. In the second process, a plating layer is formed on a part of the contact unit by soaking the contact unit in a plating bath from an axial direction one end side of the contact unit to an axial direction middle part of the tying part. In the third process, the contacts are isolated by cutting the tying part. In the fourth process, a part where the plating layer is formed, of the contact is inserted into a hole of a circuit board. In the fifth process, the contacts are soldered to the circuit board.