公开(公告)号：US09653993B2

公开(公告)日：2017-05-16

申请号：US14717809

申请日：2015-05-20

申请人： Silicon Works Co., Ltd.

发明人： Ok Hwan Kwon ,  Baek Min Lim ,  Hai Feng Jin ,  Ju Pyo Hong ,  Sung Hwan Kim ,  Ju Hyun Lee ,  Jin Won Mok ,  Ju Yeong Kim

IPC分类号： H02M3/156 ,  G05F1/44 ,  H02M3/335

CPC分类号： H02M3/156 ,  G05F1/44 ,  H02M3/33507

摘要： A signal control circuit and a switching apparatus are provided. The switching apparatus includes: a switch for controlling a current flowing through an inductive element; a monitoring node connected with the switch; and a signal control circuit, connected with the monitoring node and a reference voltage, for turning on/off the switch, wherein the signal control circuit includes an integrator for generating a comparison voltage by using a monitoring voltage of the monitoring node and the reference voltage, wherein the integrator includes: a resistor unit; a capacitor unit; and an auto-calibrator for receiving at least one selection signal and determining at least one of a resistance of the resistor unit and a capacitance of the capacitor unit, during a power-up period, and allowing a peak value of the comparison voltage to fall within a target range.