-
1.发明申请公开(公告)号：US20190190279A1
公开(公告)日：2019-06-20
申请号：US16218458
申请日：2018-12-12
Applicant: Chengdu Monolithic Power Systems Co. Ltd.
Inventor： Min Xu
Abstract: A multiphase charging circuit includes a first phase having a first switch and a second phase having a second switch to provide a system voltage for a system load, a control method of the multiphase charging circuit includes: generating a plurality of feedback control signals with generating each of feedback control signal based on a corresponding feedback signal, a ramp signal, a corresponding reference signal and a current flowing through the first phase; selecting one of the plurality of feedback control signals as a first enable signal; generating a first control signal of the first switch based on the first enable signal and a first time period control signal; generating a second enable signal by shifting a pre-determined phase difference to the first control signal; and generating a second control signal of the second switch based on the second enable signal and a second time period control signal.
-
公开(公告)号：US09882405B2
公开(公告)日：2018-01-30
申请号：US14486860
申请日：2014-09-15
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Min Xu , Jielin Zhang , Xiaoli Kong , Yuancheng Ren
CPC classification number: H02J7/0068 , H02J7/0063 , H02J9/061 , Y10T307/625
Abstract: A power bank having an input terminal; an output terminal; a battery; a bidirectional switch circuit coupled between the battery and the output terminal of the power bank; and a select circuit coupled between the input terminal and the output terminal of the power bank; wherein when the input terminal is wired up with a power source, and the load is powered by the power source, and meanwhile, the battery is charged by the power source via the select circuit and the bidirectional switch circuit; when the input terminal is disconnected from the power source, the load is powered by the battery via the bidirectional switch circuit.
-
公开(公告)号：US09431845B2
公开(公告)日：2016-08-30
申请号：US14092856
申请日：2013-11-27
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Min Xu , Zhengui Bai , Xiaoqing Li , Yuancheng Ren
CPC classification number: H02J7/007 , H02J7/0052 , H02J7/0072 , H02J2007/0059 , H02M3/158 , H02M2001/0009
Abstract: A switching charger having a control circuit configured to provide a control signal; a power stage turned ON and OFF by the control signal; an inductor coupled between the power stage and a load; and an output capacitor coupled in parallel with the load; a current sense circuit integrated to the control circuit to sense a current flowing through the power stage.
Abstract translation: 一种开关充电器，具有配置成提供控制信号的控制电路; 功率级通过控制信号接通和断开; 耦合在功率级和负载之间的电感器; 以及与负载并联耦合的输出电容器; 集成到控制电路的电流感测电路，以感测流过功率级的电流。
-
公开(公告)号：US20140152242A1
公开(公告)日：2014-06-05
申请号：US14092837
申请日：2013-11-27
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Zhengui Bai , Min Xu , Xiaoqing Li
IPC: H02J7/00
CPC classification number: H02M3/158 , H02J7/0052 , H02J2007/0059 , H02M2001/0025
Abstract: A switching charger having a control circuit configured to provide a control signal; a power stage turned ON and OFF by the control signal; an inductor coupled between the power stage and a load; and an output capacitor coupled in parallel with the load; wherein the control circuit limits a current flowing through the inductor in a hysteretic window, and wherein the hysteretic window is adjusted according to an ON time of the control signal.
Abstract translation: 一种切换充电器，具有配置成提供控制信号的控制电路; 功率级通过控制信号接通和断开; 耦合在功率级和负载之间的电感器; 以及与负载并联耦合的输出电容器; 其中所述控制电路限制在迟滞窗口中流过所述电感器的电流，并且其中所述滞后窗口根据所述控制信号的接通时间被调整。
-
公开(公告)号：US10381854B2
公开(公告)日：2019-08-13
申请号：US15011299
申请日：2016-01-29
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Min Xu , Qiming Zhao , Xiaoqing Li
IPC: H02J7/00
Abstract: A battery charging system has a switching circuit and a control circuit. The switching circuit has a first switch, and the control circuit has a plurality of analog control loops and a digital control unit. Each of the analog control loops provides a loop control signal based on a corresponding feedback signal, a corresponding reference signal and a slope compensation signal. The digital control unit provides a switching control signal to control the first switch based on the plurality of analog control loops and a time period control signal, and the digital control unit turns ON or turns OFF the first switch automatically in response to one of the plurality of analog control loops.
-
Patent Agency Ranking
公开(公告)号：US10063078B2
公开(公告)日：2018-08-28
申请号：US15387635
申请日：2016-12-21
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Min Xu , Qiming Zhao
CPC classification number: H02J7/0052 , H02J7/0068 , H02J7/007 , H02M3/158 , H02M3/1582
Abstract: A battery charging circuit has a first switching circuit and a second switching circuit coupled in parallel between an input port and a node, a first switch coupled between the node and a system ground, a second switch coupled between the node and an output port, and a control circuit. When an input voltage is higher than a system voltage, the control circuit controls the first switching circuit and the second switching circuit turned ON and OFF with interleaving, the first switch maintains OFF and the second switch maintains ON. When the input voltage is lower than the system voltage, the control circuit controls the first switch and the second switch turned ON and OFF, and at least one of the first switching circuit and the second switching circuit maintains ON.
-
公开(公告)号：US20160226264A1
公开(公告)日：2016-08-04
申请号：US15011299
申请日：2016-01-29
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Min Xu , Qiming Zhao , Xiaoqing Li
IPC: H02J7/00
CPC classification number: H02J7/007 , H02J7/0052 , H02J2007/0059 , H02J2007/0096
Abstract: A battery charging system has a switching circuit and a control circuit. The switching circuit has a first switch, and the control circuit has a plurality of analog control loops and a digital control unit. Each of the analog control loops provides a loop control signal based on a corresponding feedback signal, a corresponding reference signal and a slope compensation signal. The digital control unit provides a switching control signal to control the first switch based on the plurality of analog control loops and a time period control signal, and the digital control unit turns ON or turns OFF the first switch automatically in response to one of the plurality of analog control loops.
Abstract translation: 电池充电系统具有开关电路和控制电路。 开关电路具有第一开关，并且控制电路具有多个模拟控制回路和数字控制单元。 每个模拟控制回路基于对应的反馈信号，对应的参考信号和斜率补偿信号提供回路控制信号。 数字控制单元基于多个模拟控制回路和时间段控制信号提供开关控制信号以控制第一开关，并且数字控制单元响应于多个模拟控制信号中的一个自动地接通或关闭第一开关 的模拟控制回路。
-
公开(公告)号：US20150194826A1
公开(公告)日：2015-07-09
申请号：US14593970
申请日：2015-01-09
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Min Xu , Qiming Zhao
IPC: H02J7/00
CPC classification number: H02J7/0009 , H02J7/0021 , H02J7/007
Abstract: A power bank circuit controlling power switches to operate at different modes in accordance with different external coupling situations is discussed. The power bank circuit may be coupled to either a power source, a digital device, or a plurality of series coupled batteries at a high voltage port; and may be coupled to either a power source, a digital device, or a single battery at a low voltage port.
Abstract translation: 讨论了控制功率开关根据不同外部耦合情况在不同模式下工作的电力库电路。 电源组电路可以耦合到高压端口处的电源，数字设备或多个串联耦合的电池; 并且可以耦合到低电压端口处的电源，数字设备或单个电池。
-
公开(公告)号：US20230004182A1
公开(公告)日：2023-01-05
申请号：US17699454
申请日：2022-03-21
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Min Xu
Abstract: An integrated circuit for a power management circuit is provided. The integrated circuit has a power input pin, a system output pin for providing an output voltage, a switching node pin coupled to a battery through an inductor, a ground pin, a first switch coupled between the system output pin and the switching node pin, a second switch coupled between the switching node pin and the ground pin, and a control circuit. The control circuit controls the first switch and second switch to operate in a buck mode or a boost mode. The first switch is turned OFF for a constant time, and the second switch is turned ON for the constant time.
-
10.发明申请公开(公告)号：US20200021118A1
公开(公告)日：2020-01-16
申请号：US16032004
申请日：2018-07-10
Applicant: Chengdu Monolithic Power Systems Co., Ltd.
Inventor： Rui Wang , Min Xu , Qiming Zhao
Abstract: A battery balancing method and circuit for balancing the voltages between battery units with a fly capacitor. In a first time period of a switching cycle, the first battery unit is used to charge the fly capacitor or the first battery unit is used to discharge the fly capacitor, depending on which of the first battery unit and the fly capacitor having a larger voltage value; and in a second time period of the switching cycle, the second battery unit is used to charge the fly capacitor or the second battery unit is used to discharge the fly capacitor, depending on which of the second battery unit and the fly capacitor having a larger voltage value
-
-
-
-
-
-
-
-
-
Search Results
27
records
(took 0.028 seconds)
