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公开(公告)号：US20240339919A1
公开(公告)日：2024-10-10
申请号：US18575057
申请日：2022-06-27
申请人： LG INNOTEK CO., LTD.
发明人： Je Hyun Yi , Byung Kwon LEE , Jae Ho CHOI , Eun Hyuk HONG
CPC分类号： H02M1/007 , B60L53/22 , H02M1/0083 , H02M1/4208
摘要： A converter according to one embodiment of the present invention comprises: a first converter and a second converter for converting the input voltage into a first level voltage; a switching unit which connects the first converter and the second converter in series or in parallel; and an output unit to which the output terminal of the first converter and the output terminal of the second converter are connected in parallel.
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公开(公告)号：US11929664B2
公开(公告)日：2024-03-12
申请号：US17788460
申请日：2020-12-21
申请人： Marquette University
CPC分类号： H02M1/0083 , H02J3/007 , H02J3/32 , H02J3/381 , H02J7/0048 , H02J7/345 , H02M3/158 , H02M3/33573 , H02M3/33576 , H02J2300/24 , H02J2300/30
摘要： A multi-port converter includes a hybrid energy storage system (HESS) that provides a faster dynamic response to load changes than prior art systems, and enables either downsizing of the main energy storage system (ESS) to increase the life of the main ESS (e.g. energy battery), or retaining the same size ESS and increasing the range or life of the power source. The multi-port convertor can advantageously result in lower investment and maintenance costs, and can also advantageously provide a path for inputs to directly feed the load. All these benefits can be achieved while reducing the number of active switches and overall component count as compared to prior art systems.
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公开(公告)号：US20240348163A1
公开(公告)日：2024-10-17
申请号：US18755237
申请日：2024-06-26
发明人： John P. LESSO
CPC分类号： H02M3/07 , H02M1/0067 , H02M1/0083 , H02M1/0095
摘要： A DC-DC converter for converting an input voltage at an input node, the converter comprising: first and second inductor nodes for connection of an inductor therebetween; first and second flying capacitor nodes for connection of a flying capacitor therebetween; a first switching network for selectively connecting the first flying capacitor node to each of the input node and the first inductor node; a second switching network for selectively connecting the second flying capacitor node to each of the input node and a reference voltage node; and reservoir circuitry, comprising: first and second reservoir capacitor nodes for connection of a reservoir capacitor therebetween; a third switching network for selectively connecting the first reservoir capacitor node to each of the first and second flying capacitor nodes; a fourth switching network for selectively connecting the second reservoir capacitor node to each of the second flying capacitor node and the reference voltage node.
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公开(公告)号：US20240291384A1
公开(公告)日：2024-08-29
申请号：US18659162
申请日：2024-05-09
申请人： NEXPERIA B.V
CPC分类号： H02M3/07 , H02J50/001 , H02M1/0083 , H02J2300/26
摘要： An inductor-less power converter for converting an input voltage to an output voltage at a conversion ratio is provided, including a plurality of stages, each stage has a capacitor, switching means and a node, the capacitor being configured as a switched capacitor, the switching means for switching the stage and connecting the capacitor, and the node for connecting one of an input voltage, output voltage or ground to the node, and the inductor-less power converter is a reconfigurable power converter including at least four stages, each of the stage includes an input voltage node, an output voltage node and a ground node, and the switching means are arranged for connecting the respective stage to one of the input voltage node, output voltage node and ground node for obtaining a plurality of different configurations, providing a plurality of different conversion ratios for converting the input voltage to the output voltage.
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5.发明公开公开(公告)号：US20240162805A1
公开(公告)日：2024-05-16
申请号：US18372582
申请日：2023-09-25
发明人： Kai Dong , Yichao Wang , Yuhua Hu , Jinfa Zhang
CPC分类号： H02M1/0083 , H02M7/05 , H02M7/219
摘要： In the present disclosure, the multi-level AC/DC conversion circuit and the multi-level DC/DC conversion circuit calculate the duty ratio of synchronous rectification switch according to the input voltage, the output voltage, the interval time of turning on the main switch, the switching cycle and the duty ratio of main switch, thereby eliminating the need for additional zero-current detecting function or zero-crossing detection circuit in conventional AC/DC conversion circuits. Accordingly, for the multi-level AC/DC conversion circuit and the multi-level DC/DC conversion circuit of the present disclosure, the cost is reduced, and the reliability is enhanced.
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公开(公告)号：US20230327551A1
公开(公告)日：2023-10-12
申请号：US17988316
申请日：2022-11-16
CPC分类号： H02M3/158 , H02M1/0083
摘要： A DC to DC converter includes an input configured to receive a DC input voltage, an output and two serially connected capacitors connected across the output. The two serially connected capacitors include a first capacitor and a second capacitor connected together at a connection node. The converter also includes a first parallel converter connected between the input and the connection node, a second parallel converter connected between the input and the connection and in parallel with the fist parallel converter, and a controller that selectively connects the first and second parallel converters to the input based on a desired magnitude and polarity of a voltage at the output.
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公开(公告)号：US20230308014A1
公开(公告)日：2023-09-28
申请号：US17704142
申请日：2022-03-25
发明人： John P. LESSO
CPC分类号： H02M3/07 , H02M1/0095 , H02M1/0067 , H02M1/0083
摘要： A DC-DC converter for converting an input voltage at an input node, the converter comprising: first and second inductor nodes for connection of an inductor therebetween; first and second flying capacitor nodes for connection of a flying capacitor therebetween; a first switching network for selectively connecting the first flying capacitor node to each of the input node and the first inductor node; a second switching network for selectively connecting the second flying capacitor node to each of the input node and a reference voltage node; and reservoir circuitry, comprising: first and second reservoir capacitor nodes for connection of a reservoir capacitor therebetween; a third switching network for selectively connecting the first reservoir capacitor node to each of the first and second flying capacitor nodes; a fourth switching network for selectively connecting the second reservoir capacitor node to each of the second flying capacitor node and the reference voltage node.
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公开(公告)号：US11967900B2
公开(公告)日：2024-04-23
申请号：US17366353
申请日：2021-07-02
发明人： Sebastien Ortet , Olivier Lauzier
CPC分类号： H02M3/158 , H02M1/0032 , H02M1/0083 , H02M1/36
摘要： An embodiment voltage converter includes a first transistor connected between a first node of the converter and a second node configured to receive a power supply voltage, a second transistor connected between the first node and a third node configured to receive a reference potential, a first circuit configured to control the first and second transistors, and a comparator including first and second inputs. The first input is configured to receive, during a first phase, a first voltage ramp and, during a second phase, a set point voltage. The second input is configured to receive, during the first phase, the set point voltage and, during the second phase, a second voltage ramp.
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公开(公告)号：US11876451B2
公开(公告)日：2024-01-16
申请号：US17366405
申请日：2021-07-02
发明人： Qiang Xie , Liang Chen
CPC分类号： H02M3/158 , H02M1/0083 , H02M3/07
摘要： The present disclosure discloses example DC-DC converters. One example DC-DC converter includes a first capacitor, a second capacitor, a switched capacitor SC circuit, and an inductor circuit. An input end of the SC circuit is coupled to a voltage input end, and an output end of the SC circuit is coupled to a voltage output end. The first capacitor and the second capacitor are sequentially connected in series between the voltage input end and the voltage output end. One end of the inductor circuit is selectively coupled between the first capacitor and the second capacitor or to a ground end, and the other end of the inductor circuit is coupled to the voltage output end.
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10.发明授权公开(公告)号：US11817783B2
公开(公告)日：2023-11-14
申请号：US17592806
申请日：2022-02-04
CPC分类号： H02M3/158 , H02M1/0058 , H02M1/007 , H02M1/0043 , H02M1/0083 , H02M3/33569
摘要： A switched mode power supply includes a multilevel buck power converter and a control circuit. The power converter includes a first buck circuit and a second buck circuit each having a power switch, a rectifier, and an inductor. The power supply may further include a resonant power converter coupled to the multilevel buck power converter. In some examples, the control circuit is configured to generate control signals for the first buck circuit's power switch and the second buck circuit's power switch to control the power converter, and adjust a switching frequency of the control signals to control the amount of reverse current flowing in the first buck circuit and the second buck circuit to achieve zero voltage switching of the first buck circuit's power switch and the second buck circuit's power switch. Other example multilevel buck power converters and power supplies are also disclosed.
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