公开(公告)号：US11476247B2

公开(公告)日：2022-10-18

申请号：US16767428

申请日：2018-11-26

申请人： ROHM CO., LTD.

发明人： Atsushi Yamaguchi ,  Junichi Kashiwagi ,  Yohei Moriyama

IPC分类号： H01L27/06 ,  H01L29/16 ,  H01L29/20 ,  H01L29/872 ,  H02M7/12

摘要： A semiconductor rectifier includes a transistor and a diode. The transistor includes a source electrode, a drain electrode and a gate electrode. The diode includes an anode electrode and a cathode electrode. The anode electrode is electrically connected to the gate electrode, and the cathode electrode is electrically connected to the source electrode.

公开(公告)号：US11095217B2

公开(公告)日：2021-08-17

申请号：US16611815

申请日：2018-05-10

申请人： Rohm Co., Ltd.

发明人： Junichi Kashiwagi ,  Atsushi Yamaguchi ,  Yohei Moriyama ,  Yuta Okawauchi ,  Yusuke Nakakohara ,  Ken Nakahara

IPC分类号： H02M3/156 ,  H02M1/00

摘要： A ripple injection circuit equipped with: a capacitor that passes a frequency component of an input voltage or a frequency component of an output voltage and that generates a first ripple voltage having a first ripple component; and an integration circuit that integrates a comparison result signal and that generates a second ripple voltage having a second ripple component. The first ripple component and the second ripple component are added to a feedback voltage.

公开(公告)号：US09509216B2

公开(公告)日：2016-11-29

申请号：US14790800

申请日：2015-07-02

申请人： Rohm Co., Ltd.

发明人： Atsushi Yamaguchi ,  Yohei Moriyama ,  Koki Sakamoto

IPC分类号： G05F1/575 ,  H02M3/156

CPC分类号： H02M3/1563

摘要： A switching power supply circuit includes: a voltage generation circuit that generates an output voltage by smoothing, with a capacitor, a voltage produced in an inductor; an integration circuit that integrates a switching voltage to generate a first ripple voltage including a first ripple component; a feedback voltage generation circuit that divides the output voltage to generate a feedback voltage; a comparison circuit that compares the feedback voltage with a reference voltage to output the result of the comparison as a comparison result signal; an integration circuit that integrates the comparison result signal to generate a second ripple voltage including a second ripple component; and a drive circuit that controls the turning on and off of a switch element based on the comparison result signal, where the first ripple component and the second ripple component are added to the feedback voltage.

摘要翻译： 开关电源电路包括：电压产生电路，通过电容器平滑产生电感中产生的电压来产生输出电压; 积分电路，其积分开关电压以产生包括第一纹波分量的第一纹波电压; 反馈电压产生电路，其分压输出电压以产生反馈电压; 比较电路，将反馈电压与参考电压进行比较，将比较结果作为比较结果信号输出; 积分电路，其对比较结果信号进行积分以产生包括第二纹波分量的第二纹波电压; 以及驱动电路，其基于比较结果信号来控制开关元件的导通和截止，其中第一纹波分量和第二纹波分量被添加到反馈电压。