Abstract: A level shifter includes a buffer circuit, a first shift circuit, and a second shift circuit. The buffer circuit provides a first signal and a first inverted signal to the first shift circuit, such that the first shift circuit provides a second signal and a second inverted signal to the second shift circuit. The second shift circuit generates a plurality of output signals according to the second signal and the second inverted signal. The first shift circuit includes a plurality of first stacking transistors and a first voltage divider circuit. The first voltage divider circuit is electrically coupled between a first system high voltage terminal and a system low voltage terminal. The first voltage divider circuit is configured to provide a first inner bias to gate terminals of the first stacking transistors.

Abstract: An optical control device includes a drive member formed with a plurality of reflecting regions along a second track and movable along the second track for driving a driven member to move along a first track. An optical unit emits a light beam that is incident upon an aligned reflecting region, and receives a light beam that was reflected by the aligned reflecting region to generate an electrical output. A controller determines actual positions of the drive member on the second track and the driven member on the first track, and controls the drive member to move along the second track so as to dispose the driven member at a desired position on the first track.

Abstract: An optical control device includes a drive member formed with a plurality of reflecting regions along a second track and movable along the second track for driving a driven member to move along a first track. An optical unit emits a light beam that is incident upon an aligned reflecting region, and receives a light beam that was reflected by the aligned reflecting region to generate an electrical output. A controller determines actual positions of the drive member on the second track and the driven member on the first track, and controls the drive member to move along the second track so as to dispose the driven member at a desired position on the first track.