| 摘要 |
PURPOSE:To enhance power source efficiency by so controlling switching power sources that voltages among both drive power source terminals are equal to a drive control voltage. CONSTITUTION:A driver for a DC motor 1 is composed of first -second switching power sources 2-3 connected with both drive power source terminals 1A-1B of the motor 1, and a drive control unit 4. The unit 4 compares a voltage VAB between the terminals 1A and 1B with a drive control voltage VCTL, and complementarily controls the outputs of the sources 2-3. As a result, the motor 1 can be efficiently driven. |
