| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a motor controller which can perform accurate current detection, using an amplifier in usual accuracy where current detection accuracy does not deteriorate even if its temperature changes. <P>SOLUTION: This motor controller is equipped with a switch circuit 10 for supplying a motor 17 with a drive current, a resistor 7 for detecting the drive current, an amplifying circuit 2 for amplifying the potential difference between both ends of the resistor 7, an input part switching means 15 which is provided in the input part of the amplifying circuit 2 and switches it to normally rotate or invert the potential difference, an output part switching means 20 which is provided at the output part of the amplifier 2 and switches it to normally rotate or invert the output voltage of the amplifier, and a CPU50 which levels the voltage at the time of having normally rotated or inverted the output voltage of the amplifier 2. <P>COPYRIGHT: (C)2007,JPO&INPIT |
