公开(公告)号：US20180076614A1

公开(公告)日：2018-03-15

申请号：US15702327

申请日：2017-09-12

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Ryo KANDA ,  Hiroshi KUROIWA ,  Tetsu TODA ,  Yasushi NAKAHARA

IPC: H02H7/08 ,  H02H1/04

CPC classification number: H02H7/0838 ,  H01L29/405 ,  H01L29/7816 ,  H01L29/861 ,  H02H1/04 ,  H03K17/0416 ,  H03K17/0822

Abstract: To realize a reduction in the number of parts in a system including a driver IC (semiconductor device). A high potential side power supply voltage is applied to a power supply application area. A high side area is formed with a circuit which includes a driver driving a high side transistor and is operated at a boot power supply voltage with a floating voltage as a reference. A low side area is formed with a circuit operated at a power supply voltage with a low potential side power supply voltage as a reference. A first termination area is disposed in a ring form so as to surround the power supply application area. A second termination area is disposed in a ring form so as to surround the high side area.

公开(公告)号：US20170170819A1

公开(公告)日：2017-06-15

申请号：US15444876

申请日：2017-02-28

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Ryo KANDA ,  Koichi YAMAZAKI ,  Hiroshi KUROIWA ,  Masatoshi MAEDA ,  Tetsu TODA

IPC: H03K17/082 ,  H03K5/24 ,  H03K17/567 ,  H01L29/40 ,  H01L29/06 ,  H01L27/092 ,  H03K3/356 ,  H01L29/78

CPC classification number: H03K17/0822 ,  H01L23/528 ,  H01L24/48 ,  H01L24/49 ,  H01L27/0922 ,  H01L29/0619 ,  H01L29/0642 ,  H01L29/0692 ,  H01L29/404 ,  H01L29/7823 ,  H01L29/7835 ,  H01L2224/0603 ,  H01L2224/48139 ,  H01L2224/48247 ,  H01L2224/4903 ,  H01L2924/00014 ,  H03K3/356 ,  H03K3/356113 ,  H03K5/01 ,  H03K5/04 ,  H03K5/24 ,  H03K5/2472 ,  H03K5/2481 ,  H03K17/567 ,  H03K2217/0081 ,  H01L2224/45099 ,  H01L2224/05599

Abstract: A driver IC includes a ring-shaped termination area, and a first area and a second area that are respectively arranged outside and inside the termination area on a layout. A sense MOS that is arranged between a floating terminal and a first sense node and is driven at a power supply voltage is formed in the termination area. A fault detection circuit that detects presence of a fault when a voltage of the first sense node is higher than a decision voltage that has been determined in advance in a period of time that a low side driver is driving a low side transistor into an ON state is formed in the first area.

公开(公告)号：US20140084889A1

公开(公告)日：2014-03-27

申请号：US14030055

申请日：2013-09-18

Applicant: Renesas Electronics Corporation

Inventor： Hiroshi KUROIWA ,  Osamu YAMASHITA ,  Masahiro ISHIHARA ,  Minoru KUROSAWA

IPC: H02M3/157

CPC classification number: H02M3/157 ,  H02M3/158 ,  H02M2001/009

Abstract: A power supply device is responsive to load changes. The power supply device includes a switch control circuit, a charge control circuit, and a discharge control circuit. The switch control circuit controls switches so that electrical power is charged into an inductor, discharged from the inductor, and distributed to first and second capacitors in a time-division manner based on a switching cycle. The charge control circuit controls the amount of electrical power to be charged into the inductor based on a first amount of error between a first output power supply voltage and its target value and a second amount of error between a second output power supply voltage and its target value. The discharge control circuit controls a distribution ratio at which the electrical power discharged from the inductor is distributed to the first and second capacitors based on the ratio between the first and second amounts of error.

Abstract translation: 电源设备响应负载变化。 电源装置包括开关控制电路，充电控制电路和放电控制电路。 开关控制电路控制开关，使得电力从电感器放电到电感器中，并且基于开关周期以时分方式分配给第一和第二电容器。 充电控制电路基于第一输出电源电压与其目标值之间的第一误差误差和第二输出电源电压与其目标之间的第二误差量来控制要充入电感器的电力量 值。 放电控制电路基于第一误差量和第二误差量之比来控制从电感器放电的电力分配给第一和第二电容器的分配比。