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公开(公告)号：US20240364216A1
公开(公告)日：2024-10-31
申请号：US18636443
申请日：2024-04-16
申请人： Robert Bosch GmbH
发明人： Marco Schreiter , Steffen Ritzmann
CPC分类号： H02M3/156 , H02M1/0025
摘要： A conversion unit for decreasing an input voltage into an output voltage. The conversion unit includes a step-down converter circuit with at least two voltage inputs for the input voltage, at least two control units, wherein each control unit is assigned to a voltage input, wherein each control unit is configured, upon receipt of a time signal, to output a switch signal to apply the input voltage to the assigned voltage input, and, upon receipt of a reset signal, to reset the switch signal, to receive the switch signal of another control unit, and, upon receipt, to reset a permission signal, to output the switch signal only if the permission signal is reset, and to provide the permission signal when the switch signal is output.
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公开(公告)号：US20240356445A1
公开(公告)日：2024-10-24
申请号：US18762569
申请日：2024-07-02
申请人： MaxLinear, Inc.
CPC分类号： H02M3/1584 , H02M3/156 , H02M3/1586 , H03M1/143
摘要： Methods and systems for ripple suppression in multi-phase buck converters may comprise a buck converter for providing an output voltage with controlled ripple current. The buck converter may include one or more main buck converter stages and one or more suppression buck converter stages coupled with the one or more main buck converter stages. The one or more suppression buck converter stages may provide suppression currents to reduce ripple currents generated in the one or main buck converter stages.
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3.发明公开公开(公告)号：US20240348148A1
公开(公告)日：2024-10-17
申请号：US18463679
申请日：2023-09-08
申请人： Deere & Company
发明人： Brij N. Singh , Richard E. Wainwright , Yuheng Wu
CPC分类号： H02M1/081 , H02M1/0009 , H02M1/0022 , H02M3/156
摘要： In accordance with one embodiment, a driver is configured to adjust a phase offset of driver control signals between corresponding switches of the same phase of the primary converter and the secondary converter consistent with the target power transfer and the estimated electromagnetic circuit inductance (e.g., comprising a leakage inductance), to minimize thermal energy dissipated from the direct-current-to-direct current converter or its transformer for the sampling time interval.
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公开(公告)号：US12113062B2
公开(公告)日：2024-10-08
申请号：US17137784
申请日：2020-12-30
IPC分类号： H01L27/06 , H01L21/8252 , H01L29/20 , H01L29/66 , H01L29/778 , H01L49/02 , H02M3/156 , H03K3/037
CPC分类号： H01L27/0629 , H01L21/8252 , H01L27/0605 , H01L28/60 , H01L29/2003 , H01L29/66462 , H01L29/7781 , H02M3/156 , H03K3/0377
摘要： The present invention provides a capacitor having a first structure made of a metal layer and a second structure made of the same metal layer and a dielectric layer between the first and the second metal structure, wherein the dielectric layer has a relative permittivity greater than 4, in particular greater than 6. It also provides a monolithically integrated circuit including such a capacitor and optionally other components. A method of manufacturing such a capacitor is also provided.
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公开(公告)号：US20240333133A1
公开(公告)日：2024-10-03
申请号：US18621465
申请日：2024-03-29
发明人： Bin QIAN , Yunyu TANG , Yaojia ZHANG , Chao LIU
摘要： A power converter including a drive circuit connected to a power conversion circuit. The drive circuit is configured to: amplify a control signal from the controller, drive a switching tube in the power conversion circuit to be turned on or off, to implement power conversion of the power conversion circuit. The controller is configured to: in response to a voltage of the power conversion circuit being greater than or equal to a first threshold, control the drive circuit to be in a first amplification mode; or the controller is configured to: in response to a voltage of the power conversion circuit being less than a first threshold, control the drive circuit to be in a second amplification mode. An equivalent drive resistance of the drive circuit corresponding to the first amplification mode is greater than an equivalent drive resistance of the drive circuit corresponding to the second amplification mode.
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公开(公告)号：US20240313647A1
公开(公告)日：2024-09-19
申请号：US18208974
申请日：2023-06-13
发明人： Rajkumar Sengodan , Palash Mairal
CPC分类号： H02M3/156 , H02M1/4216 , H02M1/44
摘要： A system includes a transformer having a multi-phase AC input and AC phase segment outputs. A plurality of rectifiers are each connected to receive AC input from a respective one of the AC phase segment outputs. Each rectifier has a respective positive DC output and a respective negative DC output. A first interphase transformer (IPT) with a respective winding is connected to each of the positive DC outputs of the plurality of rectifiers. The windings of the first IPT are connected to an output node of a positive DC power rail. A second IPT with a respective winding is connected to each of the negative DC outputs of the plurality of rectifiers. The windings of the second IPT are connected to an output node of a negative DC power rail. A power switch is operatively connected from the positive DC power rail to the negative DC power rail.
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公开(公告)号：US12095366B2
公开(公告)日：2024-09-17
申请号：US17654290
申请日：2022-03-10
发明人： Jan Plojhar
CPC分类号： H02M3/156 , H02M1/0025 , H02M1/08 , H03K3/037 , H03K4/08
摘要： According to an aspect, a controller includes an error circuit configured to receive a clamping voltage and a feedback signal, the error circuit configured to generate a regulation reference signal based on the clamping voltage and the feedback signal, a PWM circuit configured to receive the regulation reference signal and a current sense signal, the PWM circuit configured to generate a limit signal or a regulation signal based on the regulation reference signal and the current sense signal, a clamp circuit configured to increase a magnitude of the clamping voltage in response to the regulation signal being an active state and decrease the magnitude of the clamping voltage in response to the limit signal being the active state, and a drive circuit configured to generate a drive signal for regulating the output current in response to at least one of the limit signal or the regulation signal.
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公开(公告)号：US12079053B2
公开(公告)日：2024-09-03
申请号：US17700110
申请日：2022-03-21
申请人： ROHM CO., LTD.
发明人： Karl Rinne , Antoin Russell
摘要： The present application is directed at pin programming od controllers for power converters and provides for the programming of a plurality of different controller parameters using a single programming resistor. The value of the programming resistor is used as a pointer to select a table storing a plurality of different settings for the controller.
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公开(公告)号：US12074517B2
公开(公告)日：2024-08-27
申请号：US17137086
申请日：2020-12-29
CPC分类号： H02M3/1563 , H02M1/0032 , H02M3/156 , H02M3/157 , H02M1/14 , H02M3/1582
摘要： A DC-DC regulator system includes a power circuit which has a first input coupled to receive an input voltage, a second input coupled to receive a control signal and an output to provide a regulated output voltage. The system includes a control circuit which has a first input coupled to receive the regulated output voltage, a second input coupled to receive a reference voltage, a first output to provide the control signal, and a second output to provide a converter clock signal. The system includes an out-of-audio circuit which has a first input coupled to receive a minimum threshold frequency signal, a second input coupled to receive the converter clock signal, a third input coupled to the power circuit output, and a fourth input coupled to receive a bandwidth control clock signal.
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公开(公告)号：US12057764B2
公开(公告)日：2024-08-06
申请号：US18053866
申请日：2022-11-09
发明人： Tuofu Liu , Xiangkun Zhai , Lieyi Fang
CPC分类号： H02M1/0006 , H02M1/08 , H02M3/156 , H02M7/217
摘要： Controller and method for a power converter. For example, a controller for a power converter includes: a first terminal configured to receive a first terminal voltage; a second terminal configured to receive a second terminal voltage; a comparator configured to receive a first threshold voltage and the second terminal voltage and to generate a comparison signal based at least in part on the first threshold voltage and the second terminal voltage; and a switch configured to receive the first terminal voltage and the comparison signal, the switch being further configured to be closed to allow a current to flow out of the second terminal through the switch if the comparison signal is at a first logic level; wherein the comparator is further configured to: receive a first reference voltage as the first threshold voltage if the first terminal voltage is smaller than a second threshold voltage.
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