公开(公告)号：US20220103094A1

公开(公告)日：2022-03-31

申请号：US17547463

申请日：2021-12-10

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Grover Victor TORRICO-BASCOPÉ

IPC: H02M7/81 ,  H02M1/44 ,  H02M1/42 ,  B60L53/20

Abstract: A power conversion apparatus employs multi-level techniques and wide band-gap semiconductor switching devices to achieve high efficiency in a converter system having high power density. The apparatus may be configured as a bi-directional conversion system capable of operating as both an inverter, configured to receive DC power and produce AC power, and as a rectifier configured to receive AC power and produce DC power. The apparatus is especially suitable for electric vehicle (EV) applications.

公开(公告)号：US20240007007A1

公开(公告)日：2024-01-04

申请号：US18363990

申请日：2023-08-02

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Muhammad YAQOOB ,  Grover Victor TORRICO-BASCOPÉ

IPC: H02M3/335 ,  H02M3/00 ,  H02M1/00

CPC classification number: H02M3/33584 ,  H02M1/0058 ,  H02M3/01

Abstract: An isolated bidirectional active-half-bridge resonant DC-DC power conversion apparatus employs dual control strategies to regulate bi-directional power flow between two DC sources. The apparatus includes a first half bridge switching network configured to convert a first DC power to an AC power. A series resonant impedance transfers the AC power to a first winding of a transformer. A first inductor and a second inductor are connected in series across a second winding of the transformer and form a positive DC node. A second half bridge switching network is connected in parallel with a first clamping capacitor, with a central node connected to the first end of the second winding. A third half bridge switching network is connected in parallel with a second clamping capacitor, with a central node connected with the second end of the second winding. The clamping capacitors are connected with a negative DC node.

公开(公告)号：US20230387814A1

公开(公告)日：2023-11-30

申请号：US18448298

申请日：2023-08-11

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Luyu WANG ,  Xiao ZHANG ,  Shuyu OU ,  Wenbo SUN ,  Grover Victor TORRICO-BASCOPÉ

IPC: H02M3/335 ,  H02M1/00 ,  H02M1/088 ,  H02M3/00

CPC classification number: H02M3/33573 ,  H02M1/0058 ,  H02M1/088 ,  H02M3/01

Abstract: A direct power AC/DC conversion apparatus employs a dual branch topology. A first branch includes a first AHB switching network configured to receive an AC grid power and produce an AC power, coupled through a series resonant impedance to a first primary winding of a transformer. The first switching network includes two bi-directional switches coupled in series where each bi-directional switch includes two switching devices coupled in series in opposite polarity. A secondary winding of the transformer is coupled through an SR switching device to an output DC power. A second branch includes a diode bridge, configured to receive the AC grid power and produce a DC power, coupled to a second AHB switching network. The second AHB switching network is coupled through a second series resonant impedance to a second primary winding of the transformer. Each of the first and second branches are operated alternately and independently.

公开(公告)号：US20230369968A1

公开(公告)日：2023-11-16

申请号：US18356425

申请日：2023-07-21

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Xiao ZHANG ,  Luyu WANG ,  Wenbo SUN ,  Qingzu HONG ,  Grover Victor TORRICO-BASCOPÉ

IPC: H02M3/00 ,  H02M7/217 ,  H02M1/32

CPC classification number: H02M3/01 ,  H02M7/217 ,  H02M1/32

Abstract: A resonant AC/DC converter. An input end of a half bridge rectifier circuit is connected to an alternating current power supply. A clamping surge protection circuit is connected to the half bridge rectifier circuit in parallel, and is connected to a resonant capacitor in a resonant DC/DC conversion circuit in parallel. When a voltage of the alternating current power supply is greater than a voltage of a bus capacitor, the clamping surge protection circuit is configured to prevent a surge signal entering the resonant DC/DC conversion circuit. When the voltage of the alternating current power supply is less than or equal to a voltage of a direct current bus, a voltage of the resonant capacitor is clamped. The resonant DC/DC conversion circuit performs electric energy conversion on the pulsating direct current that is output by the half bridge rectifier circuit, and then performs output.

公开(公告)号：US20230361671A1

公开(公告)日：2023-11-09

申请号：US18351004

申请日：2023-07-12

Applicant: Huawei Digital Power Technologies Co., Ltd.

Inventor： Shuyu OU ,  Muhammad YAQOOB ,  Qingzu HONG ,  Wenbo SUN ,  Grover Victor TORRICO-BASCOPÉ

IPC: H02M1/08 ,  H02M3/335 ,  H02M1/00

CPC classification number: H02M1/083 ,  H02M3/33576 ,  H02M1/0058 ,  H02M3/33515

Abstract: A control method for a hybrid three-port DC-DC power converter combining a dual active bridge converter and a dual active bridge series resonant converter topology. The controller includes a first control loop to regulate power flow between the first port and the second port and a second control loop to regulate power flow between the second port and the third port. The first control loop employs a three-mode control methodology to regulate power flow through the dual active bridge converter between the first port and the second port. The second control loop is configured with a lower bandwidth than the first control loop and regulates power flow through the dual active bridge series resonant converter between the second port and the third port.

公开(公告)号：US20230020030A1

公开(公告)日：2023-01-19

申请号：US17955427

申请日：2022-09-28

Applicant: HUAWEI DIGITAL POWER TECHNOLOGIES CO., LTD.

Inventor： Shengyong DAI ,  Grover Victor TORRICO-BASCOPÉ

IPC: B60L53/22 ,  H02M3/335 ,  H02J7/04 ,  H02M7/797 ,  H02M1/42

Abstract: Example bidirectional energy transmission apparatus and methods are described. An example of a bidirectional energy transmission apparatus includes a controller and a bidirectional energy transmission circuit. A control terminal of the controller is connected to a controlled terminal of the bidirectional energy transmission circuit. In the example, the controller is configured to control the bidirectional energy transmission circuit to be in a rectification working state, so as to convert, into a first direct current voltage, a three-phase or single-phase alternating current voltage that is input from a first port of the bidirectional energy transmission circuit, and output the first direct current voltage from a second port of the bidirectional energy transmission circuit. The controller is configured to control the bidirectional energy transmission circuit to be in an inversion working state, so as to convert, into a three-phase or single-phase alternating current voltage.