Abstract: An optical element driving mechanism is provided and includes a fixed assembly, a movable assembly, a driving assembly and a stopping assembly. The fixed assembly has a main axis. The movable assembly is configured to connect an optical element, and the movable assembly is movable relative to the fixed assembly. The driving assembly is configured to drive the movable assembly to move relative to the fixed assembly. The stopping assembly is configured to limit the movement of the movable assembly relative to the fixed assembly within a range of motion.

Abstract: A power-on reset circuit with hysteresis includes a current mirror, a voltage division circuit, a hysteresis control circuit, and a logic driver. The current mirror is coupled to an external supply voltage. The voltage division circuit generates a first control voltage according to the external supply voltage. The hysteresis control circuit generates a second control voltage according to the external supply voltage and the first control voltage. The logic driver generates an output voltage according to the second control voltage. The hysteresis control circuit further defines a first threshold voltage and a second threshold voltage which are different from each other, such that the logic switching state of the output voltage is determined by comparing the external supply voltage with the first threshold voltage or the second threshold voltage.

Abstract: A power-on reset circuit with hysteresis includes a current mirror, a voltage division circuit, a hysteresis control circuit, and a logic driver. The current mirror is coupled to an external supply voltage. The voltage division circuit generates a first control voltage according to the external supply voltage. The hysteresis control circuit generates a second control voltage according to the external supply voltage and the first control voltage. The logic driver generates an output voltage according to the second control voltage. The hysteresis control circuit further defines a first threshold voltage and a second threshold voltage which are different from each other, such that the logic switching state of the output voltage is determined by comparing the external supply voltage with the first threshold voltage or the second threshold voltage.

Abstract: A buffer output circuit, a driving method thereof and a memory apparatus are provided. The memory apparatus includes a memory array and the buffer output circuit including a first output stage circuit and a second output stage circuit. The first output stage circuit and the second output stage circuit receive the data signal at the same time and are both coupled to the data output terminal outputting a data output signal. The second output stage circuit receives a feedback signal from the first output stage circuit. During a pre-charging-discharging period, the first output stage circuit performs a voltage pre-raising operation or a voltage pre-decreasing operation on the data output signal based on the data signal, and the second output stage circuit keeps the level of the data output signal changing based on the feedback signal until the state transition of the data output signal is completed.

Abstract: A power-on reset circuit with hysteresis includes a current mirror, a voltage division circuit, a hysteresis control circuit, and a logic driver. The current mirror is coupled to an external supply voltage. The voltage division circuit generates a first control voltage according to the external supply voltage. The hysteresis control circuit generates a second control voltage according to the external supply voltage and the first control voltage. The logic driver generates an output voltage according to the second control voltage. The hysteresis control circuit further defines a first threshold voltage and a second threshold voltage which are different from each other, such that the logic switching state of the output voltage is determined by comparing the external supply voltage with the first threshold voltage or the second threshold voltage.