| 摘要 |
A system and method for controlling the horizontal size of a monitor screen are provided. The provided system for controlling the horizontal size of a monitor screen includes a processor, a driving circuit, and a microcomputer. Here, the processor generates a calibration signal to control the horizontal size of a monitor screen, in response to predetermined control signals. The driving circuit receives the calibration signal and controls the driving capacity of the calibration signal according to an external load to output the calibration signal. The microcomputer generates the control signals. It is preferable that the processor includes a first converter circuit for generating an alternating current (AC) control signal to control an AC element of the calibration signal in response to predetermined control signals, a second converter circuit for generating a first direct current (DC) control signal in response to the control signals, thereby controlling the DC element of the calibration signal, a third converter circuit for generating a second DC control signal to control a DC element of the calibration signal in response to the control signals, and a calibration signal generation circuit for generating the calibration signal in response to the AC, first DC and second DC control signals. Accordingly, the provided processor and system for controlling the horizontal size of the monitor screen control the horizontal size of the monitor screen without being affected by microcomputer generated noise.
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