| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor drive circuit which can be applied to various DC motors, and in which members can be made common and simple, and development cost, component cost and management cost can be suppressed. <P>SOLUTION: A drive control section 2 in a motor drive circuit 1 includes: a drive signal generation circuit 3; a first drive circuit 4; and a DC power supply 5. The drive control section 2 can drive the DC motor only by the first drive circuit 4, can drive the DC motor by both the first drive circuit 4 and an external second drive circuit 11, and can drive the DC motor only by the second drive circuit 11. The drive control section 2 can be applied to any of a plurality of types of armature coils 6 in which flowing currents greatly differ. Even if the types of the DC motor change, the used circuit components can be made common, and supply cost and management cost of the components can be reduced. <P>COPYRIGHT: (C)2012,JPO&INPIT |
