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公开(公告)号：US11777413B2
公开(公告)日：2023-10-03
申请号：US17346681
申请日：2021-06-14
Applicant: DELTA ELECTRONICS, INC.
Inventor： Laszlo Huber , Tomas Sadilek , Misha Kumar , Zhiyu Shen , Jinfa Zhang , Chia-Hsiong Huang , Peter Mantovanelli Barbosa
CPC classification number: H02M3/33584 , H02M1/0095 , H02M1/08 , H03M3/39 , H02M3/1584 , H02M3/33523
Abstract: A DC/DC converter may be formed out of the combination of a first converter that is optimized to transfer energy from a voltage source to a load, and a second converter that receives a control signal derived from the load voltage to regulate the load voltage. The DC/DC converter may be configured as a sigma converter, a delta converter, or a sigma-delta converter. The mode of operation being selected according to the source voltage or the load voltage, either of which may vary over a wide range.
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公开(公告)号：US11381175B2
公开(公告)日：2022-07-05
申请号：US16885060
申请日：2020-05-27
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yungtaek Jang , Tomas Sadilek , Peter Barbosa
Abstract: An AC-DC power conversion system provides extended voltage gain characteristic by virtue of controlling a duty cycle of operation associated with the desired input-to-output gain. The AC-DC power conversion system includes an AC-stage, first and second inductors, first and second voltage-doubler stages, a totem-pole rectifier stage, and a DC-stage coupled across the totem-pole rectifier stage. Each voltage-doubler stage includes a first terminal, a second terminal, and a third terminal, wherein a first terminal of the AC-stage is coupled by the first inductor to the first terminal of each voltage-doubler stage and by the second inductor to the third terminal of each voltage-doubler stage. The totem-pole rectifier stage includes first and second terminals coupled, respectively, to the second terminal of the first voltage-doubler stage and the second terminal of the second voltage-doubler stage.
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公开(公告)号：US20220149744A1
公开(公告)日：2022-05-12
申请号：US17346681
申请日：2021-06-14
Applicant: DELTA ELECTRONICS, INC.
Inventor： Laszlo Huber , Tomas Sadilek , Misha Kumar , Zhiyu Shen , Jinfa Zhang , Chia-Hsiong Huang , Peter Mantovanelli Barbosa
Abstract: A DC/DC converter may be formed out of the combination of a first converter that is optimized to transfer energy from a voltage source to a load, and a second converter that receives a control signal derived from the load voltage to regulate the load voltage. The DC/DC converter may be configured as a sigma converter, a delta converter, or a sigma-delta converter. The mode of operation being selected according to the source voltage or the load voltage, either of which may vary over a wide range.
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公开(公告)号：US12160178B2
公开(公告)日：2024-12-03
申请号：US17861157
申请日：2022-07-08
Applicant: Delta Electronics, Inc.
Inventor： Satyaki Mukherjee , Chi Zhang , Tomas Sadilek , Misha Kumar , Boyi Zhang , Peter Mantovanelli Barbosa
Abstract: A novel phase-shift based modulation strategy is disclosed that enables a DC-DC converter to operate with zero voltage-switching (ZVS) across wide voltage and power range. The converter operates at a fixed fundamental frequency, with the output current controlled based on an amount of phase shift of the fundamental component at the output of an inverter portion of the converter. To achieve soft switching a rectifier portion of the converter is controlled to phase shift the fundamental component of the rectifier voltage observed at a rectifier reference terminal. More specifically, by requiring a phase shift of the voltage at the rectifier terminal relative to the output voltage of the inverter, the inverter current is such that ZVS is achieved. A converter and method are provided to implement DC-DC conversion with soft switching.
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公开(公告)号：US12083912B2
公开(公告)日：2024-09-10
申请号：US18282203
申请日：2022-03-18
Applicant: Delta Electronics, Inc.
Inventor： Tomas Sadilek , Ruxi Wang , Satyaki Mukherjee , Hui-Hsin Lin , Chung-Hwa Wei , Peter Mantovanelli Barbosa
CPC classification number: B60L53/22 , B60L53/24 , H02J7/0063 , B60L2210/30
Abstract: The present disclosure provides a motor drive integrated on-board charger to reduce the quantity of components in an electric system of an electric vehicle. Reduction of components is achieved by utilizing the motor and the motor driving inverter as a part of the on-board charger in the charging mode. By controlling relays, electrical connections of the system may be reconfigured according to its mode of operation. In one aspect, the motor and the motor driving inverter play the roles of a boost PFC, a current regulator, or both.
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Patent Agency Ranking
公开(公告)号：US11211872B1
公开(公告)日：2021-12-28
申请号：US17034446
申请日：2020-09-28
Applicant: DELTA ELECTRONICS, INC.
Inventor： Yungtaek Jang , Misha Kumar , Tomas Sadilek , Peter Barbosa
Abstract: A boost rectifier that operates with a single-phase input voltage includes (i) an input stage receiving the single-phase input voltage and including first and second input filter capacitors, (ii) a switching converter stage coupled to the input stage and including a rectification circuit and an inductor circuit, series-connected first and second switches providing a common terminal therebetween, and a phase output capacitor, (iii) an output stage that transfers energy stored in the phase output capacitor to an output load, (iv) a decoupling stage that provides high-impedance decoupling between the switching converter stage and the output stage, and (v) a control circuit configured to operate the first and second switches according to an output signal of a non-linear compensation circuit that combines a feedforward signal derived from both the input and output voltages of the boost rectifier with an output voltage feedback control signal.
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公开(公告)号：US20220345026A1
公开(公告)日：2022-10-27
申请号：US17233272
申请日：2021-04-16
Applicant: DELTA ELECTRONICS, INC.
Inventor： Tomas Sadilek , Yungtaek Jang , Peter Barbosa
Abstract: A circuit technique substantially reduces the switching losses in an AC-DC power conversion system caused by turn-on characteristics of a main switch and the reverse-recovery characteristic of a rectifier. The losses are reduced by using an active soft-switching cell having a series inductor, a series capacitor, a main switch, a rectifier switch, and an auxiliary switch. The reverse-recovery related losses are reduced by the series inductor connected between the main and rectifier switches to control the rate of current change in the body diode of the rectifier switch during its turn-off. The main switch, the rectifier switch, and the auxiliary switch operate under zero-voltage switching (ZVS) conditions.
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公开(公告)号：US20240424928A1
公开(公告)日：2024-12-26
申请号：US18827026
申请日：2024-09-06
Applicant: Delta Electronics, Inc.
Inventor： Tomas Sadilek , Ruxi Wang , Satyaki Mukherjee , Hui-Hsin Lin , Chung-Hwa Wei , Peter Mantovanelli Barbosa
Abstract: The present disclosure provides a motor drive integrated on-board charger to reduce the quantity of components in an electric system of an electric vehicle. Reduction of components is achieved by utilizing the motor and the motor driving inverter as a part of the on-board charger in the charging mode. By controlling relays, electrical connections of the system may be reconfigured according to its mode of operation. In one aspect, the motor and the motor driving inverter play the roles of a boost PFC, a current regulator, or both.
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9.发明公开公开(公告)号：US20240157823A1
公开(公告)日：2024-05-16
申请号：US18282203
申请日：2022-03-18
Applicant: Delta Electronics, Inc.
Inventor： Tomas Sadilek , Ruxi Wang , Satyaki Mukherjee , Hui-Hsin Lin , Chung-Hwa Wei , Peter Mantovanelli Barbosa
CPC classification number: B60L53/22 , B60L53/24 , H02J7/0063 , H02P27/06 , B60L2210/30
Abstract: The present disclosure provides a motor drive integrated on-board charger to reduce the quantity of components in an electric system of an electric vehicle. Reduction of components is achieved by utilizing the motor and the motor driving inverter as a part of the on-board charger in the charging mode. By controlling relays, electrical connections of the system may be reconfigured according to its mode of operation. In one aspect, the motor and the motor driving inverter play the roles of a boost PFC, a current regulator, or both.
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公开(公告)号：US11601036B2
公开(公告)日：2023-03-07
申请号：US17233272
申请日：2021-04-16
Applicant: DELTA ELECTRONICS, INC.
Inventor： Tomas Sadilek , Yungtaek Jang , Peter Barbosa
Abstract: A circuit technique substantially reduces the switching losses in an AC-DC power conversion system caused by turn-on characteristics of a main switch and the reverse-recovery characteristic of a rectifier. The losses are reduced by using an active soft-switching cell having a series inductor, a series capacitor, a main switch, a rectifier switch, and an auxiliary switch. The reverse-recovery related losses are reduced by the series inductor connected between the main and rectifier switches to control the rate of current change in the body diode of the rectifier switch during its turn-off. The main switch, the rectifier switch, and the auxiliary switch operate under zero-voltage switching (ZVS) conditions.
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