公开(公告)号：US20180205342A1

公开(公告)日：2018-07-19

申请号：US15918683

申请日：2018-03-12

Applicant: Renesas Electronics Corporation

Inventor： Yasuo USUDA ,  Yusuke SUGAWARA ,  Yoshitaro KONDO ,  Masaki HOGARI

IPC: H02P27/08 ,  H02P6/14 ,  H02J7/00

CPC classification number: H02P27/08 ,  H02J7/0016 ,  H02J7/0021 ,  H02J7/0024 ,  H02J7/0077 ,  H02P6/14

Abstract: The present invention provides a motor driving method, a battery pack, and a semiconductor device capable of variable-controlling a bus voltage from a battery pack. A battery pack outputting a bus voltage to a positive voltage node using a negative voltage node as a reference, an inverter unit converting the bus voltage to AC voltage by switching according to a PWM signal and driving a motor, and a motor control unit generating the PWM signal are used. The motor control unit outputs a voltage instruction signal for instructing the bus voltage toward the battery pack. The battery pack variable-controls the number of cells coupled in parallel between the positive voltage node and the negative voltage node so as to obtain the bus voltage according to the voltage instruction signal.

公开(公告)号：US20170093320A1

公开(公告)日：2017-03-30

申请号：US15242504

申请日：2016-08-20

Applicant: Renesas Electronics Corporation

Inventor： Yasuo USUDA ,  Yusuke SUGAWARA ,  Yoshitaro KONDO ,  Masaki HOGARI

IPC: H02P27/08 ,  H02J7/00 ,  H02P6/14

CPC classification number: H02P27/08 ,  H02J7/0016 ,  H02J7/0021 ,  H02J7/0024 ,  H02J7/0077 ,  H02P6/14

Abstract: The present invention provides a motor driving method, a battery pack, and a semiconductor device capable of variable-controlling a bus voltage from a battery pack. A battery pack outputting a bus voltage to a positive voltage node using a negative voltage node as a reference, an inverter unit converting the bus voltage to AC voltage by switching according to a PWM signal and driving a motor, and a motor control unit generating the PWM signal are used. The motor control unit outputs a voltage instruction signal for instructing the bus voltage toward the battery pack. The battery pack variable-controls the number of cells coupled in parallel between the positive voltage node and the negative voltage node so as to obtain the bus voltage according to the voltage instruction signal.

公开(公告)号：US20180048257A1

公开(公告)日：2018-02-15

申请号：US15791817

申请日：2017-10-24

Applicant: Renesas Electronics Corporation

Inventor： Toshiya NOZAWA ,  Yoshitaro KONDO ,  Yusuke SUGAWARA ,  Shoichi KAMIMURA ,  Masatoshi MAEDA ,  Yasuhiro SHIRAI

IPC: H02P29/68 ,  H02M7/48 ,  H02P29/024

CPC classification number: H02P29/68 ,  H02M7/48 ,  H02P29/027

Abstract: Erroneous mounting of a semiconductor power module can be more easily detected. A semiconductor power module (9) according to the present invention includes: a status signal generation unit (90) configured to detect a status in the semiconductor power module (9) and generate and output a status signal indicating the detected status; an identification information storage unit (91) configured to preliminarily store identification information for identifying the semiconductor power module (9) and output an identification signal indicating the identification information; and a switching unit (92) configured to select one of the status signal output from the status signal generation unit (90) and the identification signal output from the identification information storage unit (91) and output the selected signal to an outside of the semiconductor power module (9).

公开(公告)号：US20190006978A1

公开(公告)日：2019-01-03

申请号：US15979005

申请日：2018-05-14

Applicant: RENESAS ELECTRONICS CORPORATION

Inventor： Reiji YAMASAKI ,  Yoshitaro KONDO

IPC: H02P27/08 ,  H02M7/5387 ,  H02M1/08

CPC classification number: H02P27/085 ,  H02M1/08 ,  H02M7/53871 ,  H02M2001/0009 ,  H02P6/16

Abstract: A calculation apparatus 100 includes an encoder 101 configured to detect rising edges of PWM signals having at least three or more phases in each of the phases, and a register 103 configured to store, at a timing after the PWM signals having the respective phases rise and after AD conversion of a current value of a drive signal of a motor obtained by the PWM signals, a difference value between the AD-converted current value and a previous AD-converted current value for each phase.

公开(公告)号：US20170093325A1

公开(公告)日：2017-03-30

申请号：US15232176

申请日：2016-08-09

Applicant: Renesas Electronics Corporation

Inventor： Toshiya NOZAWA ,  Yoshitaro KONDO ,  Yusuke SUGAWARA ,  Shoichi KAMIMURA ,  Masatoshi MAEDA ,  Yasuhiro SHIRAI

IPC: H02P29/68 ,  H02P29/024

CPC classification number: H02P29/68 ,  H02M7/48 ,  H02P29/027

Abstract: Erroneous mounting of a semiconductor power module can be more easily detected. A semiconductor power module (9) according to the present invention includes: a status signal generation unit (90) configured to detect a status in the semiconductor power module (9) and generate and output a status signal indicating the detected status; an identification information storage unit (91) configured to preliminarily store identification information for identifying the semiconductor power module (9) and output an identification signal indicating the identification information; and a switching unit (92) configured to select one of the status signal output from the status signal generation unit (90) and the identification signal output from the identification information storage unit (91) and output the selected signal to an outside of the semiconductor power module (9).