公开(公告)号：US12155252B2

公开(公告)日：2024-11-26

申请号：US18157960

申请日：2023-01-23

Applicant: APPLE INC.

Inventor： Philip W. Juang ,  Christopher D. Laws ,  Brandon Pierquet ,  Giridhar N. Murching ,  William A. Braff

IPC: H02J7/00 ,  H01M10/42 ,  H01M10/46 ,  H01M50/502 ,  H02J7/34

Abstract: A system includes a first bus, a second bus, a first battery that includes a first plurality of cells, and a second battery that includes a second plurality of cells, wherein the second battery is connected to the second bus. A first converter connects the first battery to the first bus. A second converter connects the first bus to the second bus. A controller is configured to control operation of the first converter and the second converter.

公开(公告)号：US11876458B2

公开(公告)日：2024-01-16

申请号：US17457377

申请日：2021-12-02

Applicant: Apple Inc.

Inventor： Ashish K. Sahoo ,  Jie Lu ,  Brandon Pierquet ,  Anish Prasai

IPC: H02J9/04 ,  H02M5/293 ,  H02M1/08 ,  H02J9/06 ,  H02M3/335 ,  H02M7/797 ,  H02J3/32 ,  H02J7/02

CPC classification number: H02M5/2932 ,  H02J9/062 ,  H02M1/083 ,  H02M3/33584 ,  H02M7/797 ,  H02J3/32 ,  H02J7/02 ,  H02J2207/20

Abstract: An electrical system can include an isolated bidirectional converter (having an input couplable to a grid connection and an output couplable to a battery) and an isolated converter (having an input coupled to the input of the isolated bidirectional converter and couplable to the grid connection, with an AC output coupled to a convenience outlet). The electrical system can further include a controller that controls operation of the converters to operate in one of a plurality of modes including a charging mode in which the isolated bidirectional converter operates in a forward direction to charge the battery and the non-isolated converter powers the convenience outlet from the grid connection, and a non-charging mode in which the isolated bidirectional converter operates in a reverse direction to power the non-isolated converter from the battery and the non-isolated converter powers the convenience outlet.

公开(公告)号：US20230163616A1

公开(公告)日：2023-05-25

申请号：US18157960

申请日：2023-01-23

Applicant: APPLE INC.

Inventor： Philip W. Juang ,  Christopher D. Laws ,  Brandon Pierquet ,  Giridhar N. Murching ,  William A. Braff

IPC: H02J7/00 ,  H01M50/502 ,  H01M10/46 ,  H02J7/34 ,  H01M10/42

CPC classification number: H02J7/007 ,  H01M50/502 ,  H02J7/0013 ,  H01M10/46 ,  H02J7/0063 ,  H02J7/342 ,  H01M10/425 ,  H02J7/0047 ,  H02J2207/20 ,  H01M2010/4271

Abstract: A system includes a first bus, a second bus, a first battery that includes a first plurality of cells, and a second battery that includes a second plurality of cells, wherein the second battery is connected to the second bus. A first converter connects the first battery to the first bus. A second converter connects the first bus to the second bus. A controller is configured to control operation of the first converter and the second converter.

公开(公告)号：US11424640B2

公开(公告)日：2022-08-23

申请号：US17032656

申请日：2020-09-25

Applicant: Apple Inc.

Inventor： Ashish K. Sahoo ,  Brandon Pierquet

IPC: B60L53/20 ,  H02J7/06 ,  H02J7/34 ,  H02M3/335 ,  B60L50/60 ,  H02M1/12 ,  B60L53/50

Abstract: A high voltage battery system can receive power from an AC grid and deliver power to a low voltage battery system. Embodiments can include an active filter and high voltage to low voltage (HVLV) DCDC converter to reduce harmonics associated with the charger reaching the low voltage battery system and further to stabilize the voltage presented to the HVLV DCDC converter to improve its operating efficiency.

公开(公告)号：US20220131539A1

公开(公告)日：2022-04-28

申请号：US17647220

申请日：2022-01-06

Applicant: Apple Inc.

Inventor： Ashish K. Sahoo ,  Brandon Pierquet

IPC: H03K17/687 ,  H02M1/08

Abstract: A switching system can include a main switching device configured to switch a voltage, a gate driver having an output coupled to a drive terminal of the main switching device and configured to deliver a drive signal to the main switching device, and a clamp circuit. The clamp circuit can be coupled to the drive terminal of the main switching device. The clamp circuit can include a logic gate configured to drive a clamp switching device coupled to and configured to clamp a voltage at the drive terminal of the main switching device. A drive signal of the clamp switching device can be substantially complementary to the main switching device drive signal. The logic gate can provide at least a portion of a delay between switching transitions of the main switching device and switching transitions of the clamp switching device.

公开(公告)号：US11791710B2

公开(公告)日：2023-10-17

申请号：US17182856

申请日：2021-02-23

Applicant: Apple Inc.

Inventor： Jie Lu ,  Brandon Pierquet ,  Ashish K. Sahoo

IPC: H02M5/293 ,  H02M7/483 ,  H02M1/15 ,  H02M7/53 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M1/15 ,  H02M5/293 ,  H02M7/53 ,  H02M1/0054 ,  H02M1/0074 ,  H02M1/0095 ,  H02M3/33571 ,  H02M7/4833

Abstract: A stacked half bridge converter may be configured to provide an AC output voltage from either a DC or an AC input voltage. The switching devices of the converter may be operated according to a plurality of switching sequences, each switching sequence including one or more switching patterns, each switching pattern including one or more switching states of the switching devices. The switching sequences, patterns, and states may be selected to improve operation of the converter, by regulating the voltage at a neutral point of the converter to reduce ripple, increase switching efficiency, protect the switching devices from overvoltages, and the like.

公开(公告)号：US20230120402A1

公开(公告)日：2023-04-20

申请号：US18068412

申请日：2022-12-19

Applicant: APPLE INC.

Inventor： Philip W. Juang ,  Christoopher D. Laws ,  Brandon Pierquet ,  Giridhar N. Murching ,  William A. Braff

IPC: H02J7/00 ,  H02J7/34 ,  H01M50/502 ,  H01M10/42 ,  H01M10/46

Abstract: A system includes a first bus, a second bus, a first battery that includes a first plurality of cells, and a second battery that includes a second plurality of cells, wherein the second battery is connected to the second bus. A first converter connects the first battery to the first bus. A second converter connects the first bus to the second bus. A controller is configured to control operation of the first converter and the second converter.

公开(公告)号：US11557909B2

公开(公告)日：2023-01-17

申请号：US17547318

申请日：2021-12-10

Applicant: Apple Inc.

Inventor： Philip W. Juang ,  Christopher D. Laws ,  Brandon Pierquet ,  Giridhar N. Murching ,  William A. Braff

IPC: H02J7/00 ,  H02J7/34 ,  H01M50/502 ,  H01M10/42 ,  H01M10/46

Abstract: A system includes a first bus, a second bus, a first battery that includes a first plurality of cells, and a second battery that includes a second plurality of cells, wherein the second battery is connected to the second bus. A first converter connects the high-voltage battery to the first bus. A second converter connects the first bus to the second bus. A controller is configured to control operation of the first converter and the second converter.

公开(公告)号：US20220103003A1

公开(公告)日：2022-03-31

申请号：US17032656

申请日：2020-09-25

Applicant: Apple Inc.

Inventor： Ashish K. Sahoo ,  Brandon Pierquet

IPC: H02J7/06 ,  B60L53/20 ,  H02J7/34 ,  H02M3/335 ,  H02M1/12 ,  B60L50/60

Abstract: A high voltage battery system can receive power from an AC grid and deliver power to a low voltage battery system. Embodiments can include an active filter and high voltage to low voltage (HVLV) DCDC converter to reduce harmonics associated with the charger reaching the low voltage battery system and further to stabilize the voltage presented to the HVLV DCDC converter to improve its operating efficiency.

公开(公告)号：US20240405686A1

公开(公告)日：2024-12-05

申请号：US18326557

申请日：2023-05-31

Applicant: Apple Inc.

Inventor： Anish Prasai ,  Ashish K. Sahoo ,  Brandon Pierquet ,  Jie Lu

IPC: H02M3/335 ,  H02M7/219 ,  H02M7/5387 ,  H02P27/06

Abstract: An isolated switching converter can include an inverting bridge, a transformer, a rectifying bridge, and control circuitry. The inverting bridge can receive an input voltage and deliver an output voltage to the transformer primary windings. The inverting bridge can include a plurality of half bridges cascaded across the input voltage. Each half bridge can include an input capacitor; upper and lower switches coupled across the input capacitor and connected at a switch node; and a DC blocking capacitor coupled between the switch node and a primary winding terminal. The rectifying bridge can have an input coupled to the secondary windings of the transformer and can deliver an output voltage of the isolated switching converter. The control circuitry can monitor inverter feedback signal(s) and generate phase staggered inverter drive signal(s). The control circuitry can also monitor rectifier feedback signal(s) and generate rectifier drive signals that operate the rectifying bridge.