Industrial Technology Research Institute

Nuvoton Technology Corporation

Chia-Hung Hung

Chih-Wei Chen

Chun-Hsien Liu

Chia-Chiang Chang

Story Huang

Jia-Bin Hsu

A motor control device and a motor control method are provided. The motor control device includes a memory and a controller. During an initialization period, the controller drives a brushless DC motor to change a rotor position through a drive circuit for adjusting and obtaining a starting angle and a locked exciting current corresponding to the starting angle, and the controller stores starting-angle information corresponding to the starting angle and locked exciting-current information corresponding to the locked exciting current in the memory. After the initialization period ends, during a normal rotation period, the controller maintains the rotor position of the brushless DC motor at the starting angle with the locked exciting current through the drive circuit, until the controller activates the brushless DC motor through the drive circuit.

Motor control device and motor control method

A solid-state light emitting display and a fabrication method thereof are proposed. The light emitting display includes a metallic board formed with conductive circuits, and a plurality of luminous microcrystals disposed on a surface of the metallic board and electrically connected to the conductive circuits. The metallic board provides the features of lightness and thinness, and flexibility, and the luminous microcrystals are in the form of light emitting components, so as to improve the luminous efficiency of display and attain the effect of environmental protection and energy saving, thereby providing display technology with performance satisfactory for various display requirements.

Solid-state light emitting display and fabrication method thereof

The invention provides a separation method for object and glue membrane, and it is characterized: an external force such as tearing apart is pre-applied for appropriately separating the glue membrane and the object, such that the binding ability between the object and the glue membrane is reduced, and a taking-and-placing head then sucks up the object; to achieve said objective, it can arrange a vacuum sucking-up seat that is moveable and has vacuum adsorption hole under the glue membrane, and the sucking force of the vacuum sucking-up seat may generate an external force such as tearing apart to the glue membrane, and the object is then sucked up by the taking-and-placing head; it is also possible to arrange a connection rod to lower down and lift up the taking-and-placing head simultaneously and, before the taking-and-placing head is lowered down to contact the object, it may bring along the connection rod to press down the glue membrane and generate an external force such as tearing apart to the glue membrane, and the object is then sucked up by the taking-and-placing head; since the external force is not applied upon the object, so it may control the deforming rate of the objet to a minimum degree, such that the object may be avoided from being broken and be not caused to move, and it may also peel apart multiple chips, such that the production speed is increased and the taking-up time is shortened.

Growing community of inventors

Hsinchu, Taiwan

Chia-Hung Hung