| 摘要 |
PURPOSE: A digital-to-analog is provided to detect an actual output voltage value corresponding to the digital value by arbitrarily establishing a maximum analog voltage value. CONSTITUTION: A digital-to-analog comprises a digital input portion(120), a digital analog converter(130), an analogue output unit(140), a digital maximum value setting unit(170), a digital input control unit(150), and a processing unit(160). A digital analog converter changes the inputted digital value into the analog voltage value(Vout). The digital analog converter changes the analog voltage value into value between the maximum analog voltage value and zero. The digital maximum value setting unit sets the maximum value(Dinmax) of the digital value(Din). A digital input control unit controls the digital value between the zero and the upper value.
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