Drive device

A drive device comprising:

• a driver configured to control a plurality of semiconductor switches according to a control pattern, the plurality of semiconductor switches corresponding to a plurality of loads, respectively, and the control pattern including a signal instructing a conduction state of each of the plurality of loads;
• a monitor storage configured to store a monitor pattern that is a result of monitoring the conduction state of each of the plurality of loads;
• a determination storage configured to store a determination pattern for determining an abnormality of the monitor pattern, the determination pattern being a conduction pattern that indicates the conduction state of each of the plurality of loads;
• and
• a comparator configured to compare the determination pattern and the monitor pattern, and determine that the abnormality of the monitor pattern has occurred in response to that the determination pattern and the monitor pattern satisfy a predetermination correspondence relationship.

A drive device comprising:

• a control storage configured to store a control pattern that includes a signal instructing a conduction state of each of a plurality of loads;
• a driver configured to control a plurality of semiconductor switches according to the control pattern, the plurality of semiconductor switches corresponding to the plurality of loads, respectively;
• a monitor storage configured to store a monitor pattern that is a result of monitoring the conduction state of each of the plurality of loads;
• a determination storage configured to store a determination pattern for determining an abnormality of the control pattern and an abnormality of the monitor pattern, the determination pattern being a conduction pattern indicating the conduction state of each of the plurality of loads;
• and
• a comparator configured to compare the determination pattern with the control pattern and the monitor pattern, determine that the abnormality of the control pattern has occurred in response to that the determination pattern and the control pattern satisfy a predetermined correspondence relationship, and determine that the abnormality of the monitor pattern has occurred in response to that the determination pattern and the monitor pattern satisfy a predetermined correspondence relationship.