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公开(公告)号：US20240365450A1
公开(公告)日：2024-10-31
申请号：US18768471
申请日：2024-07-10
IPC分类号： H05B45/38 , H02M1/00 , H02M1/08 , H02M3/00 , H02M3/335 , H05B44/00 , H05B45/10 , H05B45/327 , H05B45/345 , H05B45/37 , H05B45/3725 , H05B45/375 , H05B45/385 , H05B45/39 , H05B45/395 , H05B45/50
CPC分类号： H05B45/38 , H02M1/08 , H02M3/33507 , H02M3/33569 , H02M3/33571 , H05B44/00 , H05B45/10 , H05B45/327 , H05B45/345 , H05B45/37 , H05B45/385 , H05B45/39 , H05B45/395 , H05B45/50 , H02M1/0009 , H02M1/0035 , H02M1/0058 , H02M3/01 , H05B45/3725 , H05B45/375 , Y02B70/10
摘要： A method for controlling an amount of power delivered to an electrical load may include controlling an average magnitude of a load current towards a target load current that ranges from a maximum-rated current to a minimum-rated current in a normal mode and controlling the average magnitude of the load current below the minimum-rated current in a burst mode. The burst mode may include at least one burst-mode period that comprises a first time period associated with an active state and a second time period associated with an inactive state. During the burst mode, the method may include regulating a peak magnitude of the load current towards the minimum-rated current during the active state and stopping the generation of at least one drive signal during the inactive state to control the average magnitude of the load current to be less than the minimum-rated current.
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公开(公告)号：US20240364233A1
公开(公告)日：2024-10-31
申请号：US18285290
申请日：2022-04-11
申请人： HITACHI, LTD.
发明人： Hitoshi TANIGUCHI , Jia LI , Aya TOOYAMA , Takafumi HARA
摘要： An inverter control apparatus includes: a voltage command generating unit that generates a voltage command corresponding to each phase of AC power; a phase difference calculation unit that calculates a voltage difference between the phases of the voltage command; a required phase difference calculation unit that calculates a required phase difference representing a difference of voltages between the phases of the voltage command required to prevent semiconductor switching devices from turning on simultaneously in two phases; a voltage command correction unit that compares the calculated voltage difference and the calculated required phase difference calculated, and corrects the voltage command based on the comparison result; a carrier wave generating unit that generates a carrier wave; and a PWM signal generating unit that compares the voltage command that has been corrected by the voltage command correction unit with the carrier wave.
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公开(公告)号：US20240364231A1
公开(公告)日：2024-10-31
申请号：US18682514
申请日：2022-10-13
CPC分类号： H02M7/219 , H02M1/08 , H02M1/0048
摘要： A first MOSFET, a second MOSFET, a first control circuit, and a second control circuit are provided; the second MOSFET is in a non-rectification period when the first MOSFET is in a rectification period; the first MOSFET is in a non-rectification period when the second MOSFET is in a rectification period; the first control circuit outputs a voltage generated on the basis of a first input voltage as a first output voltage between the gate and the source of the first MOSFET in at least a portion of a period in which a voltage between the drain and the source of the second MOSFET is inputted as the first input voltage and a negative voltage is applied between the drain and the source of the first MOSFET; the second control circuit outputs a voltage generated on the basis of a second input voltage as a second output voltage between the gate and the source of the second MOSFET in at least a portion of a period in which a voltage between the drain and the source of the first MOSFET is inputted as the second input voltage and a negative voltage is applied between the drain and the source of the second MOSFET.
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公开(公告)号：US20240364226A1
公开(公告)日：2024-10-31
申请号：US18765715
申请日：2024-07-08
发明人： Zhengyan HE
CPC分类号： H02M3/33573 , H02J3/38 , H02M3/015 , H02M3/33592 , H02J2300/24
摘要： A direct current converter includes a full-bridge inverter, a control module, a transformer, a resonant circuit, and a rectifier module. The full-bridge inverter includes a first switching device, a second switching device, a third switching device, and a fourth switching device. The control module adjusts a duty cycle of the first switching device, the second switching device, the third switching device, or the fourth switching device to a first duty cycle. The control module further controls a working frequency of the direct current converter to be a first working frequency, where an absolute value of a difference between the first working frequency and a resonant frequency of the resonant circuit is less than or equal to a threshold.
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公开(公告)号：US20240364219A1
公开(公告)日：2024-10-31
申请号：US18452175
申请日：2023-08-18
发明人： Kevin Scoones , Youngbok Kim , Orlando Lazaro , Reza Sharifi
摘要： A power converter includes a power stage circuit having a control input and an output. A pulse width modulation (PWM) controller has a control output coupled to the control input of the power stage. A compensator includes a passive component and a switch coupled to the passive component. The switch has a switch control input coupled to the control output of the PWM controller.
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公开(公告)号：US20240364217A1
公开(公告)日：2024-10-31
申请号：US18307545
申请日：2023-04-26
发明人： Adrian Lin
CPC分类号： H02M3/157 , H02M1/0009 , H02M1/0012
摘要： A floating-rail voltage generator and method are provided for use in a switched regulator. Generally, the generator includes a floating-rail reference generator, a current-sinking buffer and a current-sink. The reference generator is operable to generate a reference voltage (VSSHV_REF) equal to an input voltage (VBAT) minus 1.8 V for VBAT between 1.8V and 4.8V, and equal to 0V for VBAT less than 1.8V. The buffer is coupled between VBAT and ground, and operable to receive the VSSHV_REF and generate a continuous floating-rail voltage (VSSHV) on a floating-rail for VBAT between 1.6V and 4.8V. The current-sink is operable to receive VSSHV_REF and VSSHV, and to turn on a current sinking switch coupled between the floating-rail and ground by setting a set-reset latch having a latch output coupled to a gate of the current sinking switch when a transient load current signal is received from a load coupled to the floating-rail.
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公开(公告)号：US20240364203A1
公开(公告)日：2024-10-31
申请号：US18232721
申请日：2023-08-10
发明人： Hsin-Chih Chen , Li-Hung Wang , Chao-Li Kao , Yi-Ping Hsieh , Hung-Chieh Lin
CPC分类号： H02M1/0029 , H02M1/007 , H02M7/4837
摘要： A power converter is provided. The power converter includes first to fourth switches electrically connected in series, a flying capacitor and a controller. Positive and negative terminals of the flying capacitor are electrically connected to the second and third switches respectively. The controller operates the first and fourth switches to perform a first complementary switching with a first dead time, and operates the second and third switches to perform a second complementary switching with a second dead time. The controller determines to regulate the first or second dead time by detecting a capacitor voltage of the flying capacitor, such that the capacitor voltage of the flying capacitor is maintained within a balance voltage range.
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公开(公告)号：US20240363604A1
公开(公告)日：2024-10-31
申请号：US18432387
申请日：2024-02-05
申请人： pSemi Corporation
发明人： David GIULIANO
IPC分类号： H01L25/16 , H01L23/48 , H01L23/522 , H01L23/64 , H01L27/01 , H01L27/06 , H02M3/07 , H05K1/02 , H05K1/11 , H10N19/00
CPC分类号： H01L25/16 , H01L23/481 , H01L23/5223 , H01L23/5227 , H01L23/64 , H01L23/642 , H01L27/016 , H01L27/0688 , H01L28/40 , H01L28/90 , H02M3/07 , H05K1/0298 , H05K1/115 , H10N19/00 , H01L2224/0401 , H01L2224/0554 , H01L2224/0557 , H01L2224/05572 , H01L2224/16225 , H01L2224/16265 , H01L2924/19103 , H01L2924/19104 , H01L2924/19105 , H02M3/077
摘要： This disclosure relates to embodiments that include an apparatus that may comprise a first layer including a first plurality of active devices, a second layer including a second plurality of active devices, and/or a third layer including a plurality of passive devices and disposed between the first and the second layers. An active device of the first plurality of active devices and an active device of the second plurality of active devices may influence a state of charge of a passive device of the plurality of passive devices.
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公开(公告)号：US20240359561A1
公开(公告)日：2024-10-31
申请号：US18141068
申请日：2023-04-28
发明人： Robert J. Vovos , Andrew S. Clark
CPC分类号： B60L3/003 , B60L3/0069 , B60L50/51 , H02M1/123 , B60L2210/42
摘要： A common-mode current sensor system and method for a traction inverter of an electric hybrid vehicle. The system and method detects/reduces excess common-mode currents that can be caused by the presence of alternating current (AC)-chassis type short circuit faults at the outputs of an inverter used for driving a two or more-phased load. In an embodiment, the system detects the presence of an AC-chassis fault of any varying strength, e.g., weak, medium, hard, in respective parallel paths. The system and method can isolate a particular AC-chassis type fault to a particular phase leg of the inverter thereby obviating a need of having to shut-down and/or re-program each phase leg of the whole power supply and vehicle operation. Rather, upon detecting a chassis short, a fault signal is asserted to control shutting down of one or more inverter switches without having to shut-down the vehicle or negatively impact the vehicle status.
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公开(公告)号：US12132431B2
公开(公告)日：2024-10-29
申请号：US18146812
申请日：2022-12-27
申请人： DENSO CORPORATION
发明人： Kouichi Nishibata
IPC分类号： H02K17/32 , H02K23/68 , H02K27/30 , H02M7/5387 , H02P7/00 , H02P27/06 , H02P29/024
CPC分类号： H02P29/0241 , H02M7/53871 , H02P27/06
摘要： A control circuit is applied to a system provided with a rotary electric machine, a power converter electrically connected to a winding of the rotary electric machine, a power source, a cutoff switch provided on an electrical path that connects the power source and the power converter, and a storage unit. The control circuit is provided with a failure determination unit that determines whether a failure occurs in the system and a regeneration prevention unit that prevents a power regeneration, where a current flows from a rotary electric machine side towards a storage unit side, from occurring. In the case where the failure determination unit determines that a failure occurs in the system, the cutoff switch is turned OFF after the regeneration prevention unit prevents an occurrence of the power regeneration.
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