| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an inexpensive DC motor control circuit in which variation among products is eliminated. <P>SOLUTION: A DC motor 2 and a switching element 3 are connected in series with a DC power supply 1, the voltage En across the switching element 3 is divided by a voltage division circuit 4, and the switching element 3 is switched with the output from a hysteresis circuit 6 configured by connecting a plurality of transistors TR1 and TR2 such that the voltage output V8 transits between two values with hysteresis characteristics for the output voltage V5 from the voltage division circuit 4. <P>COPYRIGHT: (C)2007,JPO&INPIT |
