| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve reductions in size, number of component parts, packaging area and cost of a current detection circuit for controlling motors. <P>SOLUTION: An integrated circuit (IC) is internally provided with a differential amplifier circuit provided with a pair of plus and minus input terminals and an output terminal, wherein the input terminals of the differential amplifier circuit can accept inputs of negative voltages and have a function to cut off the circuit when an excessively high voltage is inputted. The integration of the circuit achieves reductions in size and cost of a current detection circuit and reductions in size and cost of a motor control circuit, a motor control device or various devices using a motor control device can be realized. <P>COPYRIGHT: (C)2012,JPO&INPIT |
