| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a DC motor drive control apparatus which has a simple motor drive circuit to reduce a circuit space and manufacturing cost, and is capable of driving a plurality of DC motors smoothly almost at the same time, and to provide a car air conditioner using the same. <P>SOLUTION: As for the DC motor drive control apparatus and a car air conditioner using the same, a drive control signal is time-shared equally among three and output at every cycle T of controls No. 1 to No. 5, so that any of three door motors MA, MB, and MC can be driven simultaneously, as a motor drive cycle T shown by controls No. 4 and No. 5. In that case, the door motors MA, MB, and MC are repeatedly and periodically iterated in a drive rotation state (1/3 of one cycle) by the drive control signal and a non-drive idle state (2/3 of the cycle) by an idle control signal. <P>COPYRIGHT: (C)2012,JPO&INPIT |
