公开(公告)号：US20240133960A1

公开(公告)日：2024-04-25

申请号：US18399074

申请日：2023-12-28

Applicant: DENSO CORPORATION

Inventor： Masaaki KITAGAWA ,  Shun Miyauchi ,  Isao Ishibe

IPC: G01R31/3835 ,  H01M10/42 ,  H02J7/00

CPC classification number: G01R31/3835 ,  H01M10/4285 ,  H02J7/0047

Abstract: In a battery measurement apparatus, a current controller sets a predetermined wavenumber of each of first and second alternating signals, and determines whether an input or an output of the predetermined wavenumber of one of the first and second alternating signals to or from a rechargeable battery has completed. The current controller switches, in response to determination that the input or output of the predetermined wavenumber of one of the first and second alternating signals to or from the rechargeable battery has completed, the completed one of the first and second alternating signals to a new alternating signal having another frequency while continuing the input or output of the other of the first and second alternating signals to or from the rechargeable battery.

公开(公告)号：US20240230770A9

公开(公告)日：2024-07-11

申请号：US18399074

申请日：2023-12-28

Applicant: DENSO CORPORATION

Inventor： Masaaki KITAGAWA ,  Shun Miyauchi ,  Isao Ishibe

IPC: G01R31/3835 ,  H01M10/42 ,  H02J7/00

CPC classification number: G01R31/3835 ,  H01M10/4285 ,  H02J7/0047

Abstract: In a battery measurement apparatus, a current controller sets a predetermined wavenumber of each of first and second alternating signals, and determines whether an input or an output of the predetermined wavenumber of one of the first and second alternating signals to or from a rechargeable battery has completed. The current controller switches, in response to determination that the input or output of the predetermined wavenumber of one of the first and second alternating signals to or from the rechargeable battery has completed, the completed one of the first and second alternating signals to a new alternating signal having another frequency while continuing the input or output of the other of the first and second alternating signals to or from the rechargeable battery.

公开(公告)号：US11750002B2

公开(公告)日：2023-09-05

申请号：US16937424

申请日：2020-07-23

Applicant: DENSO CORPORATION

Inventor： Masaaki Kitagawa ,  Shun Miyauchi ,  Takumi Shimizu

IPC: H02J7/00 ,  G01R31/364 ,  G01R31/389 ,  G01R31/396 ,  H01M10/44 ,  H01M10/48

CPC classification number: H02J7/0047 ,  G01R31/364 ,  G01R31/389 ,  G01R31/396 ,  H01M10/44 ,  H01M10/48 ,  H01M2200/00

Abstract: A battery monitoring apparatus includes a circuit board, a signal control unit configured to cause a predetermined AC signal to be outputted from a storage battery through a first electrical path, a response signal input unit configured to input, through a pair of second electrical paths, a response signal of the storage battery to the AC signal, and a calculating unit configured to calculate, based on the response signal, a complex impedance of the storage battery. The first and second electrical paths are provided on a major face of the circuit board. On the circuit board, there is defined a first region which is surrounded by the first and second electrical paths and two terminals of the storage battery. The size of the first region is set to have an electromotive force, which is induced in the second electrical paths by the AC signal, be within an allowable electromotive-force range.

公开(公告)号：US09729042B2

公开(公告)日：2017-08-08

申请号：US14737847

申请日：2015-06-12

Applicant: DENSO CORPORATION

Inventor： Shun Miyauchi ,  Tsuneo Maebara

IPC: H02M3/335 ,  H02M1/08 ,  H02M7/5387 ,  H02M7/00 ,  H03K17/567 ,  H03K17/691

CPC classification number: H02M1/08 ,  H02M7/003 ,  H02M7/5387 ,  H03K17/567 ,  H03K17/691

Abstract: In a power supply apparatus, an upper-arm control unit includes a first switching element connected between a DC power source and a primary side of each upper-arm transformer. The upper-arm control unit controls on and off operations of a first voltage-controlled switching element to control supply of an output voltage of the DC power source to the primary side of each upper-arm transformer. A lower-arm control unit includes a second voltage-controlled switching element connected between the DC power source and a primary side of the at least one lower-arm transformer. The lower-arm control unit controls on and off operations of a second switching element to control supply of the output voltage to the primary side of the at least one lower-arm transformers. Each upper-arm transformer is arranged adjacent to the upper-arm control unit, and the at least one lower-arm transformer is arranged adjacent to the lower-arm control unit.