A motor drive apparatus that supplies a current to three-phase coils of a three-phase brushless motor and that rotates a rotor, the motor drive apparatus comprising: a plurality of switching elements (38a-38f) configured to turn on or turn off respective current supply routes connected to the three-phase coils; a plurality of rotation position detection sensors (41, 42, 43) each of which is provided at a phase different from one another in a rotation direction of the rotor and which are configured to detect a phase in a rotation direction of the rotor and generate an output signal; and an element control part configured to turn on and turn off the plurality of switching elements (38a-38f) individually based on the output signal and to output a PWM signal having a duty ratio of 0%, to a pair of switching elements among the plurality of switching elements (3 8a-3 8f) that are connected to each other in series and that drive a second coil among the three-phase coils to a low level, characterized in that based on the output signal, among the plurality of switching elements, the element control part is configured to: output a PWM signal having a command duty ratio that is externally input, to a pair of switching elements among the plurality of switching elements (38a-38f) that drive a first coil among the three-phase coils to a high level, and output a PWM signal having a duty ratio of 50% of the command duty ratio, to a pair of switching elements among the plurality of switching elements (38a-38f) that are connected to each other in series and that drive a third coil among the three-phase coils. a plurality of switching elements (38a-38f) configured to turn on or turn off respective current supply routes connected to the three-phase coils; a plurality of rotation position detection sensors (41, 42, 43) each of which is provided at a phase different from one another in a rotation direction of the rotor and which are configured to detect a phase in a rotation direction of the rotor and generate an output signal; and an element control part configured to turn on and turn off the plurality of switching elements (38a-38f) individually based on the output signal and to output a PWM signal having a duty ratio of 0%, to a pair of switching elements among the plurality of switching elements (3 8a-3 8f) that are connected to each other in series and that drive a second coil among the three-phase coils to a low level, characterized in that based on the output signal, among the plurality of switching elements, the element control part is configured to: output a PWM signal having a command duty ratio that is externally input, to a pair of switching elements among the plurality of switching elements (38a-38f) that drive a first coil among the three-phase coils to a high level, and output a PWM signal having a duty ratio of 50% of the command duty ratio, to a pair of switching elements among the plurality of switching elements (38a-38f) that are connected to each other in series and that drive a third coil among the three-phase coils. output a PWM signal having a command duty ratio that is externally input, to a pair of switching elements among the plurality of switching elements (38a-38f) that drive a first coil among the three-phase coils to a high level, and output a PWM signal having a duty ratio of 50% of the command duty ratio, to a pair of switching elements among the plurality of switching elements (38a-38f) that are connected to each other in series and that drive a third coil among the three-phase coils.