| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a saturation calculation circuit for reducing a calculation time and suppressing an increase in power consumption and heat generation at low cost. <P>SOLUTION: A saturation calculation circuit 101 comprises a first offset circuit 103 for adding an offset to an upper limit value 108; a second offset circuit 104 for adding an offset to a lower limit value 109; a third offset circuit 105 for adding an offset to a value to be calculated 110; a first comparator 106 for comparing magnitude of outputs from the first offset circuit 103 and the third offset circuits 105; a second comparator 107 for comparing magnitude of outputs from the second offset circuit 104 and the third offset circuit 105; and a selector 102 for selecting any of the upper limit value 108, the lower limit value 109 and the value 110 to be calculated by using the outputs from the first comparator 106 and the second comparator 107 as selection signals. <P>COPYRIGHT: (C)2004,JPO |
