Motor control device and thermal printer
AssigneeToshiba Tec Kabushiki Kaisha
InventorNaoyuki HATTORI
Life of this patent
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Abstract
According to one or more embodiments, a motor driving device includes a first substrate, a motor drive circuit, a first temperature sensor, a second temperature sensor, and a controller. The first substrate is connected to a motor via a first wiring. The motor drive circuit is provided on the first substrate. The first temperature sensor is provided on the first substrate and detects a first temperature of the motor drive circuit. The second temperature sensor detects a second temperature of an ambient environment where the motor is being used. The controller controls the motor drive circuit based on the first temperature from the first temperature sensor and the second temperature from the second temperature sensor.
Claims20
A motor driving device, comprising:
- a first substrate connected to a motor via a first wiring;
- a motor drive circuit on the first substrate;
- a first temperature sensor on the first substrate, the first temperature sensor being positioned to detect a first temperature of the motor drive circuit;
- a second temperature sensor positioned to detect a second temperature of an ambient environment of the motor;
- and
- a controller configured to control the motor drive circuit based on the first temperature detected by the first temperature sensor and the second temperature detected by the second temperature sensor.
A motor control device, comprising:
- a first substrate connected to a motor via a first wiring;
- a second substrate separated from the first substrate and connected to the first substrate via a second wiring:
- a motor drive circuit on the first substrate;
- a first temperature sensor on the first substrate, the first temperature sensor being positioned to detect a first temperature of the motor drive circuit;
- a second temperature sensor on the second substrate, the second temperature sensor being positioned to detect a second temperature of an ambient environment of the motor;
- and
- a controller configured to control the motor drive circuit such that driving of the motor is stopped when the first temperature reaches or exceeds a first threshold temperature, the first threshold temperature being set based on the second temperature.
A thermal printer, comprising:
- a motor configured to convey a sheet for printing;
- a thermal head configured to perform printing on the sheet;
- a first substrate connected to the motor via a first wiring;
- a motor drive circuit on the first substrate;
- a first temperature sensor on the first substrate, the first temperature sensor being positioned to detect a first temperature of the motor drive circuit;
- a second temperature sensor, the second temperature sensor being configured to detect a second temperature of an ambient environment where the motor is being used;
- and
- a motor controller configured to control the motor drive circuit based on the first temperature detected by the first temperature sensor and the second temperature detected by the second temperature sensor.
Dependencies are inferred from the claim text.