| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine that rotates a performance movable body with low power consumption without increasing control loads on a CPU. SOLUTION: The game machine determines whether to enter a game state advantageous to a player through predetermined drawing processing, and executes a performance action corresponding to the result of the drawing processing, and the performance action includes movement performance to be executed by a rotary motor MOb. A drive circuit 45B for rotating the rotary motor MOb includes a triangular wave generation part 53 for generating triangular waves, a DA converter 54 for converting control data DATA to analog signals Vo, a comparator CMP for receiving the triangular waves and the analog signals Vo and outputting Duty control signals V1, a modulation part 52 for changing motor driving signalsΦ1-Φ4 to a non-driving level when the Duty control signals V1 are at an inhibition level, and an output part 51 for supplying the output of the modulation part 52 to the rotary motor MOb. COPYRIGHT: (C)2011,JPO&INPIT
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