| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor drive circuit that can improve the accuracy of detecting a current flowing in a motor coil and an electronic apparatus using it. <P>SOLUTION: A first resistor R1 is provided in a path where a current same with that of the motor coil 150 flows through the whole period of time when a current is made to flow in the direction from a first terminal 102 to a second terminal 104 through the motor coil 150 (a first period). A second resistor R2 is provided in a path where a current same with that of the motor coil 150 flows through the whole period of time when the current is made to flow in the reverse direction (a second period). In the first period, a voltage across the first resistor R1 is treated as the detection result, and a voltage across the second resistor R2 as the detection result in the second period. <P>COPYRIGHT: (C)2008,JPO&INPIT |
