-
公开(公告)号：US11791830B2
公开(公告)日：2023-10-17
申请号：US18062623
申请日：2022-12-07
发明人： Lijie Zhao , Kien Chan Vi , Hai Tao
CPC分类号： H03M1/0607 , H03M1/201 , H03M1/40 , H03M1/46
摘要： An apparatus includes a plurality of binary weighted capacitors coupled between a first input terminal of a comparator and a plurality of signal buses, wherein the plurality of binary weighted capacitors has a binary weight increasing by two times from a first capacitor to an (N−K)th capacitor, and a constant binary weight from the (N−K)th capacitor to a (N−K−2+2(K+1))th capacitor, an offset voltage generator configured to generate a digitally controlled offset voltage having 2(K+1) steps fed into a second input terminal of the comparator, and a successive approximation logic block configured to receive an output signal of the comparator, and generate an N-bit control signal for controlling the plurality of binary weighted capacitors.
-
公开(公告)号：US11740300B2
公开(公告)日：2023-08-29
申请号：US17484269
申请日：2021-09-24
发明人： Suming Lai , Kenneth Chung-Yin Kwok , Kien Chan Vi
摘要： A method includes connecting an input voltage bus of a switched capacitor converter to a power source through a load switch, in a first short circuit testing step, determining whether the load switch or a second switch is shorted by comparing a voltage on the input voltage bus with a first predetermined voltage reference, after passing the first short circuit testing step, in a second short circuit testing step, determining whether a first switch or a fourth switch is shorted by comparing a voltage on the common node of the third switch and the fourth switch with a second predetermined voltage reference, and after passing the second short circuit testing step, in a third short circuit testing step, determining whether a third switch is shorted by comparing the voltage on the common node of the third switch and the fourth switch with a third predetermined voltage reference.
-
公开(公告)号：US20230126760A1
公开(公告)日：2023-04-27
申请号：US17511039
申请日：2021-10-26
发明人： Rui Liu , Songnan Yang
摘要： A switched capacitor converter package includes a semiconductor package on a first side of an electrical routing apparatus, a first capacitor and a second capacitor on a second side of the electrical routing apparatus, wherein the first capacitor and the second capacitor are adjacent to each other and connected in parallel, and a third capacitor and a fourth capacitor connected on the second side of the electrical routing apparatus, wherein the third capacitor and the fourth capacitor are adjacent to each other and connected in parallel.
-
公开(公告)号：US20230044360A1
公开(公告)日：2023-02-09
申请号：US17393875
申请日：2021-08-04
发明人： Lijie Zhao , Kenneth Chung-Yin Kwok , Suming Lai , Zhao Fang
IPC分类号： H01L27/06 , H01L21/8249 , H01L29/66 , H01L29/872 , H03K17/0814
摘要： An apparatus includes a first drain/source region and a second drain/source region surrounded by an isolation ring formed over a substrate, the isolation ring formed being configured to be floating, and a first diode connected between the substrate and the isolation ring, wherein the first diode is a Schottky diode.
-
公开(公告)号：US11539296B2
公开(公告)日：2022-12-27
申请号：US17510945
申请日：2021-10-26
发明人： Thomas Liu , Songnan Yang
摘要： A hybrid dual-phase step-up power conversion system includes a step-up converter apparatus comprising a first leg, a second leg, a first capacitor and a second capacitor, wherein the first capacitor and the second capacitor are cross-coupled between the first leg and the second leg, and a plurality of expansion circuits coupled to the step-up converter apparatus, wherein the plurality of expansion circuits is configured to increase a power conversion ratio of the hybrid dual-phase step-up power conversion system.
-
公开(公告)号：US20220247419A1
公开(公告)日：2022-08-04
申请号：US17644589
申请日：2021-12-16
发明人： Lijie Zhao , Kien Chan Vi , Hai Tao
IPC分类号： H03M1/06
摘要： A method of converting an analog input signal to a digital output signal includes adding a digitally controlled offset voltage into a comparison stage of a successive approximation analog-to-digital converter circuit, wherein the digitally controlled offset voltage has a periodic pattern including at least 2(K+1) steps, each of which has a value equal to an integer multiplying 2(−K) of an analog voltage corresponding to a least significant bit (LSB) of an N-bit digital signal, operating the successive approximation analog-to-digital converter circuit to sequentially generate at least a 2(K+1) number of N-bit digital signals based on the at least 2(K+1) steps of the digitally controlled offset voltage, summing the at least the 2(K+1) number of N-bit digital signals to obtain a summing result, and dividing the summing result through a divider block to obtain a digital signal having (N+K) bits.
-
公开(公告)号：US20240275279A1
公开(公告)日：2024-08-15
申请号：US18607408
申请日：2024-03-15
发明人： Rui Liu , Songnan Yang , Shuang Han , Rong Shu , Wenrui Bai , Qing Cui
CPC分类号： H02M3/07 , H02M1/0025 , H02M3/158
摘要： A switched capacitor converter includes a first energy storage branch, a second energy storage branch, a third energy storage branch comprising a third capacitor, a seventh switch, an eighth switch, a ninth switch and a tenth switch, and a control branch connected to a first terminal of each switch in the first energy storage branch, the second energy storage branch and the third energy storage branch respectively, wherein the control branch is configured to control each switch to alternately turn on and off periodically in two phases, so that a ratio of a voltage at the input terminal to a voltage at an output terminal is 2N:1, wherein in each operating cycle, the tenth switch is turned on later than at least one switch in the third energy storage branch, and wherein the at least one switch and the tenth switch are in a same phase.
-
公开(公告)号：US11923763B1
公开(公告)日：2024-03-05
申请号：US17821685
申请日：2022-08-23
发明人： Milind Chandra Gupta
CPC分类号： H02M1/14 , H02M1/4208 , H02M3/33576
摘要： An apparatus includes a first winding and a first switch connected in series between an input terminal and ground, a second winding magnetically coupled to the first winding and coupled to an output terminal through a second switch, a third winding magnetically coupled to the first winding and connected in series with a fourth switch, a fourth winding magnetically coupled to the first winding and connected in series with a third switch, and an energy storage device connected between a common node of the third winding and the fourth winding, and ground.
-
公开(公告)号：US11876436B2
公开(公告)日：2024-01-16
申请号：US17457950
申请日：2021-12-07
发明人： Milind Chandra Gupta
IPC分类号： H02M1/08 , G01R19/165 , H02M1/00
CPC分类号： H02M1/08 , G01R19/16571 , H02M1/0009
摘要： A method includes detecting a first current flowing through a first clamping device coupled to a gate of a power switch, determining whether an inductor current reduces to zero based upon a first comparison between the first current and a first predetermined current level, and after determining the inductor current reduces to zero, determining whether a drain voltage of the power switch enters a valley of a resonant ringing based upon a second comparison between the first current and the first predetermined current level.
-
公开(公告)号：US11777396B2
公开(公告)日：2023-10-03
申请号：US17382738
申请日：2021-07-22
发明人： Rui Liu
CPC分类号： H02M1/0095 , H02J50/12 , H02M3/07 , H02M3/1582 , H02J2207/20
摘要： A single-stage battery charging system includes a hybrid converter comprising a plurality of first power switches connected in series, an inductor and a first flying capacitor, wherein the inductor is connected to a midpoint of the plurality of first power switches, a switched capacitor converter comprising a plurality of second power switches connected in series, and a second flying capacitor, and an isolation switch coupled between the midpoint of the plurality of first power switches and a midpoint of the plurality of second power switches.
-
-
-
-
-
-
-
-
-
搜索结果
52 条记录 (耗时 0.017 秒)
