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Patent Agency Ranking
公开(公告)号：US20170227974A1
公开(公告)日：2017-08-10
申请号：US15284755
申请日：2016-10-04
Applicant: Richtek Technology Corporation
Inventor： Kuo-Chi LIU , Wei-Hsin WEI
IPC: G05F1/46
CPC classification number: G05F1/46 , H02J7/025 , H02M1/4225 , H02M3/06 , H02M3/156 , H02M3/158 , H02M3/1588 , H02M7/06 , H02M2001/0054 , H03H7/38
Abstract: A tunable DC voltage generating circuit includes: a resonance circuit including an inductor and an input capacitor connected in series configuration, and arranged to operably receive an input signal and generating a resonance signal at an output node between the inductor and the input capacitor; a rectifying circuit coupled with the output node and arranged to operably rectify the resonance signal; a current control unit connected with the resonance circuit in series configuration; a stabilizing capacitor coupled with an output terminal of the rectifying circuit and arranged to operably provide a DC output signal having a voltage level greater than that of the input signal; and a control circuit coupled with the output terminal of the rectifying circuit and the current control unit, and arranged to operably adjust a current passing through the current control unit to thereby change the DC output signal.
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公开(公告)号：US20240063720A1
公开(公告)日：2024-02-22
申请号：US18186973
申请日：2023-03-21
Applicant: Richtek Technology Corporation
Inventor： Ta-Yung YANG , Wei-Hsu CHANG , Kuo-Chi LIU , Chao-Chi CHEN
CPC classification number: H02M3/1586 , H02M1/088
Abstract: A conversion control circuit controls plural stackable sub-converters which are coupled in parallel to generate an output power to a load, the conversion control circuit includes: a current sharing terminal, wherein a current sharing signal is configured to be connected to the current sharing terminals, in parallel, of the plurality of the conversion control circuits; and a current sharing circuit, configured to generate or receive the current sharing signal which is generated according to an output current of the output power; wherein the conversion control circuit adjusts the power stage circuit according to the current sharing signal for current sharing among the plural stackable sub-converters.
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公开(公告)号：US20170237341A1
公开(公告)日：2017-08-17
申请号：US15587154
申请日：2017-05-04
Applicant: Richtek Technology Corporation
Inventor： Kuo-Chi LIU , Wei-Hsin WEI
CPC classification number: G05F1/46 , H02J7/025 , H02M1/4225 , H02M3/06 , H02M3/156 , H02M3/158 , H02M3/1588 , H02M7/06 , H02M2001/0054 , H03H7/38
Abstract: A tunable DC voltage generating circuit includes: a resonance circuit including an inductor and an input capacitor coupled in a series connection, and arranged to operably receive an input signal and to operably generate a resonance signal at an output node between the inductor and the input capacitor; a rectifying circuit coupled with the output node and arranged to operably rectify the resonance signal; a current control unit coupled with an input of the rectifying circuit and coupled with the inductor or the input capacitor in a parallel connection; a stabilizing capacitor coupled with an output of the rectifying circuit and arranged to operably provide a DC output signal having a voltage level greater than that of the input signal; and a control circuit arranged to operably adjust a current passing through the current control unit according to a setting signal to thereby manipulate the DC output signal.
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公开(公告)号：US20170351281A1
公开(公告)日：2017-12-07
申请号：US15685197
申请日：2017-08-24
Applicant: RICHTEK TECHNOLOGY CORPORATION
Inventor： Kuo-Chi LIU , Wei-Hsin WEI
CPC classification number: G05F1/46 , H02J7/025 , H02M1/4225 , H02M3/06 , H02M3/156 , H02M3/158 , H02M3/1588 , H02M7/06 , H02M2001/0054 , H03H7/38
Abstract: A tunable DC voltage generating circuit includes: a resonance circuit including an inductor and an input capacitor coupled in a series connection, and arranged to operably receive an input signal and to operably generate a resonance signal at an output node between the inductor and the input capacitor; a rectifying circuit arranged to operably rectify the resonance signal; a current control unit, coupled with an output of the rectifying circuit, and coupled with the inductor or the input capacitor in a parallel connection; a stabilizing capacitor, coupled with the output of the rectifying circuit, arranged to operably provide a DC output signal having a voltage level greater than that of the input signal; and a control circuit arranged to operably adjust a current passing through the current control unit according to a setting signal to thereby manipulate the DC output signal.
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公开(公告)号：US20130170261A1
公开(公告)日：2013-07-04
申请号：US13729936
申请日：2012-12-28
Applicant: RICHTEK TECHNOLOGY CORPORATION
Inventor： Yen-Te LEE , Kuo-Chi LIU , Wen-Wei CHEN , Yi-Fan CHEN , Kuang-Feng LI
CPC classification number: H02H7/16 , H02M1/44 , H02M7/06 , H02M2001/322
Abstract: An independent bleeding integrated circuit device is provided to replace the bleeding resistor for an EMI filter capacitor, to establish a discharge path between the two terminals of the EMI filter capacitor when the EMI filter capacitor is disconnected from an AC power source, for discharging the EMI filter capacitor. When the EMI filter capacitor is connected with an AC power source, the discharge path is cut off to avoid power loss.
Abstract translation: 提供独立的出血集成电路器件来替代EMI滤波电容器的出血电阻器，当EMI滤波电容器与AC电源断开时，建立EMI滤波电容器的两个端子之间的放电路径，用于放电EMI 滤波电容器。 当EMI滤波电容器与交流电源连接时，放电路径被切断以避免功率损耗。
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