公开(公告)号：US11289997B1

公开(公告)日：2022-03-29

申请号：US16894283

申请日：2020-06-05

Applicant: Apple Inc.

Inventor： Paul M. White ,  Mark H. Sherwood ,  Stephen M. Spiteri ,  Zachary M. Rubin

IPC: H03K17/06 ,  H02M1/32 ,  G01R31/40 ,  G01R31/50 ,  H02H3/05 ,  G11C17/18 ,  H02H3/20 ,  H02M11/00 ,  H02M1/00

Abstract: Aspects of the present disclosure involve a power module, which may include an inverter circuit employing semiconductor switch dies. In the presence of a failure of a die, which may include an arc from a short, a sensor produces a signal responsive to the failure. The signal initiates an indirect fuse, such as a pyrotechnic element, that opens conductors associated with the die. For example, the die or a related die may be wire bonded to terminals of the module. The indirect element may therefore open the bonds to the terminals to isolate the failed die and/or related dies.

公开(公告)号：US11251622B1

公开(公告)日：2022-02-15

申请号：US15454324

申请日：2017-03-09

Applicant: Apple Inc.

Inventor： Mark H. Sherwood ,  Paul M. White ,  Dillon J. Thomasson ,  Zachary M. Rubin ,  Stephen M. Spiteri ,  Javier Ruiz

IPC: H02J4/00 ,  H02M3/04 ,  H02M7/04 ,  H02M7/44

Abstract: Aspects of the present disclosure involve an inverter employing switches of different types in parallel. In one example, an apparatus includes a voltage-source converter that may have a plurality of switch positions collectively coupled to convert an input to an output. At least one switch position may include a first switch of a first switch type and a second switch of a second switch type different from the first switch type. Also, the first and second switches may be coupled in parallel. The converter may also include a switch control circuit to generate, for each of the at least one of the switch positions, a first control signal to operate the first switch of the switch position, and a second control signal to operate the second switch of the switch position.

公开(公告)号：US10693363B1

公开(公告)日：2020-06-23

申请号：US15660627

申请日：2017-07-26

Applicant: Apple Inc.

Inventor： Paul M. White ,  Mark H. Sherwood ,  Stephen M. Spiteri ,  Zachary M. Rubin

IPC: H03K17/06 ,  H02M1/32 ,  G01R31/40 ,  G01R31/50 ,  H02M1/00 ,  H02M11/00 ,  H02H3/05 ,  H02H3/20 ,  G11C17/18

Abstract: Aspects of the present disclosure involve a power module, which may include an inverter circuit employing semiconductor switch dies. In the presence of a failure of a die, which may include an arc from a short, a sensor produces a signal responsive to the failure. The signal initiates an indirect fuse, such as a pyrotechnic element, that opens conductors associated with the die. For example, the die or a related die may be wire bonded to terminals of the module. The indirect element may therefore open the bonds to the terminals to isolate the failed die and/or related dies.