| 摘要 |
An apparatus that controls a DC-DC converter including a switching element of which duty ratio is controlled by the apparatus to regulate the output voltage includes: acquiring device for acquiring the input voltage; converting device for converting the input voltage to a modulated signal representing the input voltage; first limiting section for limiting the duty ratio of the switching element in response to the input voltage represented by the modulated signal; first determining section for determining whether or not the modulated signal is in abnormal condition; and enabling section for enabling the DC-DC converter to continue to convert the input voltage to the output voltage when the determining section determines the abnormal condition. The enabling section includes second limiting section for limiting the duty ratio of the switching element, the second limiting section limits the duty ratio of the switching element when the determining section determines the abnormal condition. |
