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公开(公告)号：US12119343B2
公开(公告)日：2024-10-15
申请号：US17886161
申请日：2022-08-11
发明人： Yicheng Du , Meng Wang , Hui Yu
IPC分类号： H01L27/06 , H01L21/761 , H01L49/02
CPC分类号： H01L27/0635 , H01L21/761 , H01L28/10
摘要： A semiconductor structure can include: a semiconductor substrate having a first region, a second region, and an isolation region disposed between the first region and the second region; an isolation component located in the isolation region; and where the isolation component is configured to recombine first carriers flowing from the first region toward the second region, and to extract second carriers flowing from the second region toward the first region.
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公开(公告)号：US20240330231A1
公开(公告)日：2024-10-03
申请号：US18616411
申请日：2024-03-26
发明人： Zongquan Zhang , Xiaoqiang Xu , Yuanyu Yang
CPC分类号： G06F13/4282 , G06F13/4022
摘要： An address extension circuit for configuring an address of a chip, can include where: the address extension circuit is configured to encode the address of the chip differently according to different state information of at least one address pin of the chip; and the state information of the address pin is configured to comprise at least one of floating, coupling with a communication input pin of the chip, and coupling with a communication output pin of the chip.
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公开(公告)号：US12081109B2
公开(公告)日：2024-09-03
申请号：US17542723
申请日：2021-12-06
发明人： Hongbin Lai , Jianxin Wang
CPC分类号： H02M1/0058 , H02M3/33507
摘要： A control circuit for a switching converter having a main power switch and an auxiliary power switch, where the control circuit is configured to: charge and discharge a junction capacitor of the main power switch during a turn-off period of the main power switch; and adjust a conduction time of the auxiliary power switch according to a difference between the charged and discharged charge levels across the junction capacitor.
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公开(公告)号：US12027974B2
公开(公告)日：2024-07-02
申请号：US17554198
申请日：2021-12-17
发明人： Dong Wu
摘要： A control circuit for a switching converter, can include: a ripple signal generation circuit configured to generate a ripple signal with a same frequency and phase as an inductor current of the switching converter, where the ripple signal changes between zero and a preset value; a superimposing circuit configured to superimpose the ripple signal on a feedback signal representing an output voltage of the switching converter, in order to generate a loop control signal; and a switching control signal generation circuit configured to generate switching control signals according to the loop control signal and a reference signal, in order to control a switching state of a power stage circuit in the switching converter.
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公开(公告)号：US20240170947A1
公开(公告)日：2024-05-23
申请号：US18506370
申请日：2023-11-10
发明人： Yongyu Zhong , Longqi Wang
CPC分类号： H02H3/325 , G01R31/52 , H02H1/0007 , H05B45/50
摘要： A leakage protection circuit for a lighting system can include: a pull-down current generation circuit configured to generate a pull-down current flowing from a DC bus to a reference voltage; and a control circuit configured to control the pull-down current generation circuit to generate a varied pull-down current during an operating interval, and to determine whether leakage occurs in accordance with a change state of a detection voltage signal representative of a voltage on the DC bus in a detection time interval, where the detection time interval is within the operating interval.
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公开(公告)号：US11985902B2
公开(公告)日：2024-05-14
申请号：US17326063
申请日：2021-05-20
发明人： Zhiwei Xu , Chiqing Fang , Chen Zhao
CPC分类号： H10N30/802 , B06B1/0207 , H10N30/20
摘要： A driving circuit and a driving method are provided. The driving circuit includes a charging circuit and a discharging circuit. The charging circuit is configured to receive an input voltage to charge the piezoelectric load. The piezoelectric load discharges electricity through the discharging circuit. Operation states of the charging circuit and the discharging circuit are controlled. During a first operation interval of an operation period, the charging circuit charges the piezoelectric load so that a power supply voltage signal provided to the piezoelectric load corresponds to the reference voltage in a first interval. During a second operation interval of the operation period, the piezoelectric load discharges electricity through the discharging circuit so that the power supply voltage signal corresponds to the reference voltage in a second interval. The driving circuit according to the present disclosure requires a few switches, thereby facilitating circuit integration.
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公开(公告)号：US11967644B2
公开(公告)日：2024-04-23
申请号：US18095641
申请日：2023-01-11
发明人： Meng Wang , Yicheng Du , Hui Yu
IPC分类号： H01L29/78 , H01L21/82 , H01L21/8234 , H01L21/8238 , H01L27/088 , H01L27/092 , H01L29/06 , H01L29/10 , H01L29/66
CPC分类号： H01L29/7816 , H01L21/823493 , H01L21/823814 , H01L21/823857 , H01L21/823864 , H01L21/823878 , H01L21/823892 , H01L27/088 , H01L27/0922 , H01L27/0928 , H01L29/0623 , H01L29/1095 , H01L29/66681
摘要： A semiconductor device can include: a substrate having a first doping type; a first well region located in the substrate and having a second doping type, where the first well region is located at opposite sides of a first region of the substrate; a source region and a drain region located in the first region, where the source region has the second doping type, and the drain region has the second doping type; and a buried layer having the second doping type located in the substrate and below the first region, where the buried layer is in contact with the first well region, where the first region is surrounded by the buried layer and the first well region, and the first doping type is opposite to the second doping type.
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8.发明授权公开(公告)号：US11830932B2
公开(公告)日：2023-11-28
申请号：US17152955
申请日：2021-01-20
发明人： Budong You , Hui Yu , Meng Wang , Yicheng Du , Chuan Peng , Xianguo Huang
CPC分类号： H01L29/66681 , H01L29/063 , H01L29/1095 , H01L29/402 , H01L29/66704 , H01L29/7816
摘要： A laterally diffused metal oxide semiconductor structure can include: a base layer; a source region and a drain region located in the base layer; first dielectric layer located on a top surface of the base layer and adjacent to the source region; a voltage withstanding layer located on the top surface of the base layer and located between the first dielectric layer and the drain region; a first conductor at least partially located on the first dielectric layer; and a second conductor at least partially located on the voltage withstanding layer, where the first and second conductors are spatially isolated, and a juncture region of the first dielectric layer and the voltage withstanding layer is covered by one of the first and second conductors.
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公开(公告)号：US11824434B2
公开(公告)日：2023-11-21
申请号：US17352780
申请日：2021-06-21
发明人： Kaiwei Yao , Wang Zhang , Chen Zhao
摘要： An integrated driver applied to a voltage converter having a switched capacitor conversion circuit, the integrated driver including: a first die having a first-type power transistor; a second die including at least one second-type power transistor, where a withstand voltage of the first-type power transistor is higher than a withstand voltage of the second-type power transistor; and where the first die and the second die are coupled in series between a high potential terminal and a low potential terminal of the voltage converter, such that the first-type power transistor receives a high voltage signal.
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公开(公告)号：US11799386B2
公开(公告)日：2023-10-24
申请号：US17370156
申请日：2021-07-08
发明人： Qiao Zhang , Xinlei Li
IPC分类号： H02M3/335
CPC分类号： H02M3/33592
摘要： An isolated power converter can include: a primary side having a primary winding and a primary power transistor; a secondary side having a secondary winding and a secondary power transistor; a secondary control circuit configured to change a voltage across the secondary winding to change a voltage across the primary winding during a period when both the primary power transistor and the secondary power transistor are in a turn-off state; and a primary control circuit configured to control switching states of the primary power transistor, such that an output signal of the isolated power converter matches an output demand.
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