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公开(公告)号：US09712066B2
公开(公告)日：2017-07-18
申请号：US14728866
申请日：2015-06-02
Inventor： Regan A Zane , Daniel Seltzer , Dragan Maksimovic , Boris Jacobson , Donald Desrosiers
CPC classification number: H02M3/33507 , H02M1/4241 , H02M3/1584 , H02M3/285 , H02M3/33569 , H02M3/33584 , H02M3/33592 , H02M7/5387 , H02M2001/0003 , H02M2007/4811 , H02M2007/4815 , H02M2007/4822 , Y02B70/1433
Abstract: An apparatus includes a first auxiliary switch connected to a positive connection of a switching leg of a DC-to-DC converter. The switching leg includes a first main switch and a second main switch connected at a main switch midpoint. A second auxiliary switch is connected between a negative connection of the switching leg and the first auxiliary switch. A connection point between the first and second auxiliary switches is an auxiliary midpoint. An auxiliary inductor connects the auxiliary midpoint and the main switch midpoint. The main switch midpoint is also connected to other converter elements. The first and second main switches include a first capacitance a second capacitance. A switch regulation module regulates the first and second auxiliary switches to control current in the auxiliary inductor to provide or remove charge from the first and second capacitances to induce zero voltage switching for the first and second main switches.
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公开(公告)号：US10804809B1
公开(公告)日：2020-10-13
申请号：US16443783
申请日：2019-06-17
Applicant: Utah State University
Inventor： Dorai Babu Yelaverthi , Regan A Zane
Abstract: A power converter apparatus includes a plurality of inverters where each inverter receives power from a separate DC voltage source. The apparatus includes a magnetic structure. The magnetic structure includes a primary winding for each inverter, where each primary winding is connected to an output a corresponding inverter and each primary winding is coupled to a magnetic core, and a single secondary winding coupled to one or more magnetic cores to which each primary winding is coupled. The apparatus includes a rectifier that receives an AC waveform from the secondary winding and that rectifies the AC waveform and is connected to a load at output terminals. The secondary winding includes a secondary bus and the one or more magnetic cores of the magnetic structure that are arranged to provide a pathway for the secondary winding that minimizes a length of the secondary winding.
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公开(公告)号：US10804807B2
公开(公告)日：2020-10-13
申请号：US16296103
申请日：2019-03-07
Applicant: Utah State University
Inventor： Tarak Saha , Hongjie Wang , Regan A Zane
Abstract: An apparatus for zero voltage switching includes a ZVS assist circuit connected between a switching node and a negative connection of a converter. The switching node is located between first and second switches of a switching leg of the converter. The converter is fed by a constant current source and feeds a constant current load. The ZVS assist circuit includes a ZVS inductance, a first ZVS switch that allows current through the ZVS inductance to change a voltage of the switching node to a condition for zero voltage switching of the first switch of the switching leg, and a second ZVS switch that allows current through the ZVS inductance to change the voltage of the switching node to a condition for zero voltage switching of the second switch of the switching leg. Current through the first ZVS switch is opposite current through the second ZVS switch.
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Patent Agency Ranking
公开(公告)号：US10770978B2
公开(公告)日：2020-09-08
申请号：US16363643
申请日：2019-03-25
Applicant: Utah State University
Inventor： Hongjie Wang , Regan A Zane , Tarak Saha
Abstract: A power supply includes an active bridge section with input terminals that receive power from a constant current source where the active bridge section operates at a fixed switching frequency. The power supply includes a resonant section with a resonant inductor and a resonant capacitor. The resonant section is connected to an output of the active bridge section. The power supply includes an output rectifier that receives power from the resonant section and includes output terminals for connection to a load and a controller that regulates output current to the load where the controller regulates output current to the load by controlling switching of the active bridge section. The fixed switching frequency of the active bridge section matches a resonant frequency of the resonant section.
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公开(公告)号：US09584029B2
公开(公告)日：2017-02-28
申请号：US14728837
申请日：2015-06-02
Applicant: Utah State University , Raytheon Company , Regents of the University of Colorado, a body corp
Inventor： Regan A Zane , Daniel Seltzer , Dragan Maksimovic , Boris Jacobson , Donald Desrosiers
CPC classification number: H02M3/33507 , H02M1/4241 , H02M3/1584 , H02M3/285 , H02M3/33569 , H02M3/33584 , H02M3/33592 , H02M7/5387 , H02M2001/0003 , H02M2007/4811 , H02M2007/4815 , H02M2007/4822 , Y02B70/1433
Abstract: An apparatus includes a voltage regulation module that controls output voltage of a bidirectional DC to DC converter to an output voltage reference over an output current range between a positive power reference and a negative power reference. A positive power regulation module controls output power of the converter to the positive power reference over a positive constant power range between the output voltage reference and a positive output current reference. A negative power regulation module controls output power of the converter to the negative power reference over a constant power range between the output voltage reference and a maximum negative power limit, and a constant current module limits output current to a positive output current reference in a range between a minimum output voltage and output power of the converter reaching the positive power reference.
Abstract translation: 一种装置包括电压调节模块，其将双向DC-DC转换器的输出电压控制为在正功率基准和负功率基准之间的输出电流范围上的输出电压基准。 正功率调节模块在输出电压基准和正输出电流基准之间的正恒定功率范围内控制转换器的正向功率参考的输出功率。 负功率调节模块在输出电压基准和最大负功率限制之间的恒定功率范围内将转换器的输出功率控制为负功率基准，恒定电流模块将输出电流限制在一个范围内的正输出电流参考值 在最小输出电压和转换器的输出功率达到正功率基准之间。
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公开(公告)号：US20150349647A1
公开(公告)日：2015-12-03
申请号：US14728837
申请日：2015-06-02
Applicant: Utah State University
Inventor： Regan A Zane , Daniel Seltzer , Dragan Maksimovic , Boris Jacobson , Donald Desrosiers
IPC: H02M3/335
CPC classification number: H02M3/33507 , H02M1/4241 , H02M3/1584 , H02M3/285 , H02M3/33569 , H02M3/33584 , H02M3/33592 , H02M7/5387 , H02M2001/0003 , H02M2007/4811 , H02M2007/4815 , H02M2007/4822 , Y02B70/1433
Abstract: An apparatus includes a voltage regulation module that controls output voltage of a bidirectional DC to DC converter to an output voltage reference over an output current range between a positive power reference and a negative power reference. A positive power regulation module controls output power of the converter to the positive power reference over a positive constant power range between the output voltage reference and a positive output current reference. A negative power regulation module controls output power of the converter to the negative power reference over a constant power range between the output voltage reference and a maximum negative power limit, and a constant current module limits output current to a positive output current reference in a range between a minimum output voltage and output power of the converter reaching the positive power reference.
Abstract translation: 一种装置包括电压调节模块，其将双向DC-DC转换器的输出电压控制为在正功率基准和负功率基准之间的输出电流范围上的输出电压基准。 正功率调节模块在输出电压基准和正输出电流基准之间的正恒定功率范围内控制转换器的正向功率参考的输出功率。 负功率调节模块在输出电压基准和最大负功率限制之间的恒定功率范围内将转换器的输出功率控制为负功率基准，恒定电流模块将输出电流限制在一个范围内的正输出电流参考值 在最小输出电压和转换器的输出功率达到正功率基准之间。
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公开(公告)号：US10917019B2
公开(公告)日：2021-02-09
申请号：US16298962
申请日：2019-03-11
Applicant: Utah State University
Inventor： Dorai Babu Yelaverthi , Regan A Zane
Abstract: A power converter includes an unfolder with an input connection with three terminals that connect to a three-phase AC power source and that has an output connection with a positive terminal, a negative terminal and a neutral terminal. The unfolder unfolds the bipolar AC voltages into two unipolar piece-wise sinusoidal DC voltages offset from each other by a half of a period. The power converter includes a three-input converter that produces a DC voltage output across output terminals. The three-input converter includes a positive input connection connected to the positive terminal, a negative input connection connected to the negative terminal and a neutral input connection connected to the neutral terminal. The three-input converter includes switches that selectively connect a voltage to the positive, negative and neutral input connections across a primary transformer winding of a transformer. A secondary transformer winding is connected to the output terminals through a rectification section.
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8.发明授权Zero voltage switching operation of a minimum current trajectory for a DC-to-DC converter 有权零电压开关操作DC-DC转换器的最小电流轨迹公开(公告)号：US09595873B2
公开(公告)日：2017-03-14
申请号：US14728890
申请日：2015-06-02
Inventor： Regan A Zane , Daniel Seltzer , Dragan Maksimovic , Boris Jacobson , Donald Desrosiers
CPC classification number: H02M3/33507 , H02M1/4241 , H02M3/1584 , H02M3/285 , H02M3/33569 , H02M3/33584 , H02M3/33592 , H02M7/5387 , H02M2001/0003 , H02M2007/4811 , H02M2007/4815 , H02M2007/4822 , Y02B70/1433
Abstract: An apparatus for zero voltage switching is disclosed. A system and method also perform the functions of the apparatus. The apparatus includes an MCT region module that defines a minimum current trajectory (“MCT”) for operation between a maximum positive power output to a maximum negative power output of a bidirectional DC-to-DC converter. The converter includes a dual active bridge series resonant converter. The MCT defines a boundary between a zero voltage switching (“ZVS”) region and a hard switching region. The apparatus includes an offset module that defines an offset to the MCT, the offset in the ZVS region, and an MCT control module that adjust switching of switches of the converter to maintain operation of the converter in the ZVS region between the maximum positive power output to a maximum negative power output along a trajectory defined by the MCT and the offset.
Abstract translation: 公开了一种用于零电压开关的装置。 系统和方法还执行该装置的功能。 该装置包括MCT区域模块，其限定用于在双向DC-DC转换器的最大正功率输出与最大负功率输出之间操作的最小电流轨迹（“MCT”）。 该转换器包括双主动桥式串联谐振变换器。 MCT定义零电压开关（“ZVS”）区域和硬开关区域之间的边界。 该装置包括限定到MCT的偏移量，ZVS区域中的偏移量的偏移模块和调节转换器开关的开关的MCT控制模块，以保持ZVS区域中的转换器在最大正功率输出 到由MCT和偏移量定义的轨迹的最大负功率输出。
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