CONTROL APPARATUS AND CONTROL METHOD

According to one embodiment, a control apparatus identifies a load characteristic of a circuit by an impulse response. In the control apparatus, a controller provides a control signal. A first generator generates first gate signals based on the control signal. A second generator generates second gate signals to identify the load characteristic of the circuit. A switching part switches connection to one of the first generator and the second generator. A bridge circuit connected to the switching part includes a plurality of switching elements. When the switching part is connected to the first generator, the switching elements are operated based on the first gate signals, and the bridge circuit outputs a first signal. When the switching part is connected to the second generator, the switching elements are operated based on the second gate signals, and the bridge circuit outputs an impulse second signal different from the first signal.