Industrial Technology Research Institute

Tsu-Min Liu

Chia-Ming Chang

Po-Chun Yeh

Chao-Kai Cheng

Yuh-Zheng Lee

Han-Ping Yang

Chau-Shin Jang

Chieh-Yi Huang

Hung-Pin Shih

Ming-Mao Hsu

Jih-Yang Chang

Hsin-Tien Yeh

Yu-Yuan Chen

Jeng-Han Lee

A motor driving method is applied to a motor with a rotor comprising a magnetic reluctance structure. The motor driving method comprises enabling the motor by an asynchronous driving method, controlling the motor by the asynchronous driving method according to a speed regulation command, detecting a rotor speed of the motor and determining whether the rotor speed is larger than a speed threshold, and when the rotor speed is larger than the speed threshold, controlling the motor by a synchronous driving method.

Motor driving method

An elastic actuator is provided, which may include a position motor and an electromagnetic spring. The position motor may include a motor output shaft. The electromagnetic spring may include a rotor, a stator and a gear set. The stator may drive the rotor to rotate. The gear set may include a first output shaft, a second output shaft and an output shaft; the first input shaft may connect the motor output shaft, and the second input may connect to the rotor. The power generated by the rotor and the power generated by the position motor may be outputted from the output shaft after being coupled via the gear set.

Electromagnetic spring and elastic actuator having the same

An embodiment of a print signal generation system is provided. The system comprises a sensor, a divisor processing unit, a reference signal generator, and a print trigger signal generator. The sensor detects a first offset of a first location of a medium being printed. The divisor processing unit generates a first divisor according to the first offset and a predetermined divisor. The reference signal generator generates a reference signal. The print trigger signal generator generates a print trigger signal according to the first divisor and the reference signal.

Print signal generation system

An Inkjet apparatus is provided. An Inkjet apparatus includes a piezoelectric inkjet print head, a plurality of driving unit, a detection unit and a control unit. The piezoelectric inkjet print head comprises a plurality of nozzles, wherein each the nozzle outputs an ink drop according to a driving voltage. The driving unit generates the driving voltage according to a control signal. The detection unit detects a state of the ink drop corresponding to the nozzle to generate a detection signal. The control unit generates the control signal to control the driving voltage according to the detection signal.

Inkjet apparatus and calibration methods thereof

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Zhubei, Taiwan

Tsu-Min Liu