| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a highly merchantable booster eliminating limitation of output more than necessary by reducing a control gain for boosting in accordance with an excessive electric current when the electric current is made to flow transiently. <P>SOLUTION: An input limitation electric current value (Iinmax) serving as a limitation value of an input electric current value (Iin) is set in accordance with a target electric current value (Iobj) set based on a required value on a load side and the state amount of a booster circuit (130). The booster includes a correction means (110) calculating a feedback control gain (Pv) of an output voltage value (Vout) and outputting the same to a control means (120) in accordance with the input electric current value (Iin) and the input limitation electric current value (Iinmax). The correction means (110) reduces a feedback control gain (Po) corresponding to a target voltage value (Vobj) as a difference (ΔIin) between the input electric current value (Iin) and the input limitation electric current value (Iinmax) becomes smaller than a predetermined value (ΔIinA, ΔIinB). <P>COPYRIGHT: (C)2011,JPO&INPIT |
