Power supply circuit and motor control device
AssigneeJtekt Corporation
InventorsKenichi Kozuka, Masato Oda
Life of this patent
Estimating the term…
Abstract
Provided are a power supply circuit and a motor control device configured to suppress complexity in management of the power supply circuit. A switching unit acquires identification information that is information corresponding to a type of a torque sensor. Based on the acquired identification information, the switching unit outputs either a reference voltage or a power supply voltage as a standard voltage. A voltage application unit applies to the torque sensor an operation voltage in accordance with a type of the torque sensor based on the power supply voltage or the reference voltage that is the standard voltage of the voltage application unit and that is applied by the switching unit.
Claims4
A power supply circuit comprising:
- a voltage application unit configured to apply an operation voltage based on a standard voltage to a sensor, of a plurality of sensors, that outputs an output value based on a detected state quantity;
- a switching unit configured to switch the standard voltage of the voltage application unit so that the standard voltage becomes a voltage required to operate the sensor in accordance with a type of the sensor;
- and
- a first standard voltage generation circuit configured to generate a first standard voltage, wherein:
- one of the sensors is a first sensor configured to output a voltage based on the detected state quantity to a control device connected to the power supply circuit;
- and
- the switching unit is configured to select, as the standard voltage of the voltage application unit, the first standard voltage that is generated by the first standard voltage generation circuit and having the same potential as a power supply voltage of the control device that is generated from a battery voltage, when the voltage application unit applies an operation voltage to the first sensor.
Dependencies are inferred from the claim text.