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公开(公告)号：US11532986B2
公开(公告)日：2022-12-20
申请号：US17070273
申请日：2020-10-14
IPC分类号： H02M3/158
摘要： This disclosure includes novel ways of implementing a power supply that powers a load. More specifically, a power supply includes a controller. The controller controls operation of a first power converter stage and a second power converter stage to convert an input voltage into an output voltage. For example, the first power converter stage is operative to receive an input voltage and convert the input voltage into an intermediate voltage. The second power converter stage such as a transformer-less switched-capacitor converter is coupled to the first power converter stage. The second power converter stage receives the intermediate voltage and converts the intermediate voltage into an output voltage to power a load.
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公开(公告)号：US11469678B2
公开(公告)日：2022-10-11
申请号：US17026578
申请日：2020-09-21
IPC分类号： H02M3/335
摘要： A power supply system comprises: a switched-capacitor converter, a transformer, and a voltage converter. The switched-capacitor converter includes multiple capacitors. The multiple capacitors are controllably switched in a circuit path including a primary winding of the transformer to convert the first voltage into a second voltage. The voltage converter converts the first voltage produced by the switched-capacitor converter into the second voltage that powers a load.
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3.发明申请公开(公告)号：US20190372454A1
公开(公告)日：2019-12-05
申请号：US16544107
申请日：2019-08-19
发明人： Christian Rainer
摘要： Circuits and methods are provided for soft switching within a switched-capacitor DC/DC converter, so as to reduce switching losses and improve efficiency. This is accomplished, in preferred converters, by coupling a compensation inductor between one half-bridge of an output rectifier and another half-bridge of the output rectifier. The compensation inductor functions to transfer charge from or to the capacitance of switches within the converter while the switches are off, such that the voltage across each switch is reduced to zero before that switch is turned on. This provides zero-voltage switching (ZVS) and its associated high efficiency. The efficiency associated with the ZVS makes ideal zero-current switching (ZCS) less important, such that high-precision capacitors and inductors forming the resonant tanks required by near-ideal ZCS are not required. The resultant circuits are physically smaller and less expensive than other converters that require near-ideal ZCS, but achieve similar or better efficiency.
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公开(公告)号：US10403428B2
公开(公告)日：2019-09-03
申请号：US16024520
申请日：2018-06-29
摘要： In an embodiment, a DC-DC power conversion circuit with a step-down conversion ratio of at least 12:1 is provided. The DC-DC power conversion circuit includes a half-bridge circuit arrangement, a resonant capacitor and a module including a hybrid transformer. The hybrid transformer includes a magnetic core and a primary winding electrically coupled in series with a secondary winding. The module further includes a synchronous rectifier having an output coupled between the primary winding and the secondary winding of the hybrid transformer, and an output capacitor coupled with an output of the secondary winding.
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公开(公告)号：US20190013140A1
公开(公告)日：2019-01-10
申请号：US16024520
申请日：2018-06-29
CPC分类号： H01F27/28 , H01F27/24 , H01F27/2804 , H01F30/02 , H01F30/04 , H01F2027/2809 , H01F2038/026 , H02M1/08 , H02M3/155 , H02M2001/0048
摘要： In an embodiment, a DC-DC power conversion circuit with a step-down conversion ratio of at least 12:1 is provided. The DC-DC power conversion circuit includes a half-bridge circuit arrangement, a resonant capacitor and a module including a hybrid transformer. The hybrid transformer includes a magnetic core and a primary winding electrically coupled in series with a secondary winding. The module further includes a synchronous rectifier having an output coupled between the primary winding and the secondary winding of the hybrid transformer, and an output capacitor coupled with an output of the secondary winding.
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公开(公告)号：US20240222002A1
公开(公告)日：2024-07-04
申请号：US18092605
申请日：2023-01-03
发明人： Gerald Deboy , Christian Rainer
CPC分类号： H01F27/40 , H01F27/24 , H01F27/306
摘要： A multi-layer power converter assembly includes a transformer in which a secondary winding is magnetically coupled to a primary winding of the transformer. The multi-layer power converter assembly further includes an intermediary layer such as including a substrate disposed between the primary winding and the secondary winding. A circuit (such as one or more circuit components) disposed in the intermediary layer is coupled between a first node of the secondary winding and a second node of the secondary winding. The novel power converter assembly as discussed herein provides new degrees of freedom with respect to placing secondary side windings, paralleling them, and reducing hence AC and DC resistances in a respective power converter assembly. The power converter assembly supports more power dense transformers through vertical integration rather than spreading into the x-y plane through matrix transformer constructions.
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公开(公告)号：US20220224231A1
公开(公告)日：2022-07-14
申请号：US17147752
申请日：2021-01-13
IPC分类号： H02M3/158 , G01R19/165 , H02M3/07
摘要： An apparatus such as a power converter includes a first flying capacitor, a second flying capacitor, etc., an inductor, and a network of switches. The network of switches controls conveyance of energy from the multiple flying capacitors to the inductor. The inductor converts the received energy into an output voltage to power a load. A magnitude of the respective voltage on each of the flying capacitors is substantially the same.
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公开(公告)号：US20210211040A1
公开(公告)日：2021-07-08
申请号：US16737134
申请日：2020-01-08
摘要： A power supply system comprises: a switched-capacitor converter, a monitor, and a controller. The switched-capacitor converter includes an input node to receive an input voltage and an output voltage to output an output voltage. Switching of multiple switches in the switched-capacitor converter converts the input voltage into the output voltage. As its name suggests, the monitor monitors a magnitude of the output voltage. The controller receives input indicating the magnitude of the output voltage. Depending on the magnitude of the output voltage, the controller controls states of the multiple switches during startup of the switched-capacitor converter.
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公开(公告)号：US20200343040A1
公开(公告)日：2020-10-29
申请号：US16397237
申请日：2019-04-29
摘要： An apparatus comprises: first windings, second windings, a magnetic core, and multiple tap nodes. The first windings are primary windings of a multi-tapped autotransformer. The second windings are secondary windings of the multi-tapped autotransformer. The first windings and the second windings are wrapped around the magnetic core, the second windings disposed in a series connection between the first windings. The multiple tap nodes providing coupling of the first windings and the second windings to a power supply circuit such as a switched-capacitor converter.
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公开(公告)号：US11362585B2
公开(公告)日：2022-06-14
申请号：US16818354
申请日：2020-03-13
摘要： An apparatus includes a first power converter and a second power converter. The first power converter converts an input voltage into a first output voltage; the second power converter converts the first output voltage into a second output voltage that powers a load. The second power converter includes a switched-capacitor converter combined with a magnetic device. The switched-capacitor converter provides capacitive energy transfer; the magnetic device provides magnetic energy transfer. Additionally, the second power converter provides unregulated conversion of the first output voltage into the second output voltage via the capacitive energy transfer and the magnetic energy transfer. To maintain the magnitude of the second output voltage within a desired range or setpoint value, the first power converter regulates a magnitude of the first output voltage based on comparison of a magnitude of the second output voltage with respect to a desired setpoint reference voltage.
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