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公开(公告)号：US20160079852A1
公开(公告)日：2016-03-17
申请号：US14489343
申请日：2014-09-17
Applicant: Monolithic Power Systems, Inc.
Inventor： Pengjie Lai , Jian Jiang
IPC: H02M3/158
CPC classification number: H02M3/158 , H02M1/36 , H02M3/156 , H02M2001/322
Abstract: A switching converter has an input port for receiving an input voltage and an output port for providing an output voltage. The switching converter has a power stage, an energy stored circuit, a power conversion circuit and a control circuit. The power stage has an input terminal coupled to the input port and an output terminal coupled to the output port. The energy stored circuit is charged by the input voltage and provides a first bias voltage which maintains a predetermined time period after the input voltage is less than a predetermined voltage level. The power conversion circuit provides a second bias voltage. The control circuit provides a control signal to control the power stage and discharges the output voltage based on a discharge control signal, wherein the control circuit is powered by either the first bias voltage or the second bias voltage.
Abstract translation: 开关转换器具有用于接收输入电压的输入端口和用于提供输出电压的输出端口。 开关转换器具有功率级，能量存储电路，功率转换电路和控制电路。 功率级具有耦合到输入端口的输入端子和耦合到输出端口的输出端子。 能量存储电路由输入电压充电，并提供在输入电压小于预定电压电平之后保持预定时间段的第一偏置电压。 电源转换电路提供第二偏置电压。 控制电路提供控制信号以控制功率级并基于放电控制信号放电输出电压，其中控制电路由第一偏置电压或第二偏置电压供电。
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公开(公告)号：US20220393594A1
公开(公告)日：2022-12-08
申请号：US17330584
申请日：2021-05-26
Applicant: Monolithic Power Systems, Inc.
Inventor： Di Han , Jian Jiang
Abstract: A control circuit for controlling multi-level buck converter. The multi-level buck converter has N pairs of switches, and N is an integer equal to or greater than 2. The control circuit has a comparing circuit comparing a voltage feedback signal with a reference signal to generate a comparing signal, a selecting circuit receiving the comparing signal to generate N set signals, and N COT controllers. The N set signals take turns to change from inactive state to active state at each rising edge of the comparing signal. Each of the N COT controllers receives output voltage signal, input voltage signal and one corresponding set signal of N set signals to generate a corresponding control signal to control the corresponding pair of switches to perform a complementary on and off switching.
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公开(公告)号：US11258368B2
公开(公告)日：2022-02-22
申请号：US16898207
申请日：2020-06-10
Applicant: Monolithic Power Systems, Inc.
Inventor： Jian Jiang , Di Han
Abstract: A control method for regulating the switching frequency of a resonant converter having an input terminal to receive an input voltage and an output terminal to output an output voltage. The control method is sensing the input voltage and adjusting the switching frequency based on the comparison of the input voltage with a reference threshold voltage. When the input voltage is less than the reference threshold voltage, the switching frequency is adjusted to decrease, and when the input voltage is higher than the reference threshold voltage, the switching frequency is adjusted to increase.
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公开(公告)号：US10855174B2
公开(公告)日：2020-12-01
申请号：US16379749
申请日：2019-04-09
Applicant: Monolithic Power Systems, Inc.
Inventor： Ming Lu , Pengjie Lai , Jian Jiang
Abstract: A power supply covering power sharing and overshoot preventing functions. In the power supply, a first eFuse is used to deliver a first input power source to a first load at a first bus terminal, and a second eFuse is used to deliver a second input power source to a second load at a second bus terminal. When the current flowing through one eFuse hits its current limit threshold, the other input power source kicks in to provide power support. The current limit threshold of each eFuse is set to be lower than its maximum rated current.
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公开(公告)号：US20190260226A1
公开(公告)日：2019-08-22
申请号：US16372391
申请日：2019-04-01
Applicant: Monolithic Power Systems, Inc.
Inventor： Ming Lu , Pengjie Lai , Jian Jiang
Abstract: A power supply covering both power sharing and power backup functions run in a more efficient and flexible way. The power supply adopts a power sharing converter coupled between a first bus terminal and a second bus terminal, so that if one of the bus terminals provides insufficient power, the other bus terminal kicks in by way of the power sharing converter to provide power support. In addition, a storage capacitor may also kick in to provide power support if one of the bus terminals provide insufficient power via or not via the power sharing converter.
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Patent Agency Ranking
公开(公告)号：US20170084404A1
公开(公告)日：2017-03-23
申请号：US14859102
申请日：2015-09-18
Applicant: Monolithic Power Systems, Inc.
Inventor： Jian Jiang , Pengjie Lai , Bo Zhou , Junyong Gong , Eric Yang
IPC: H01H9/54
CPC classification number: H03K17/689 , H03K17/6874 , H03K2217/0009 , H03K2217/0081
Abstract: An AC switch circuit coupled between an AC input signal and an AC load has a first switch, a second switch, a driving circuit, and a power generation circuit. The first switch blocks a first half-cycle of the AC input signal when turned OFF, and the second switch blocks a second half-cycle of the AC input signal when turned OFF. The driving circuit provides a driving signal to control the first switch and the second switch based on an enable signal. The power generation circuit provides a voltage signal to power the driving circuit. The power generation circuit stores energy from the AC input signal when the first switch and the second switch are turned OFF, and the power generation circuit is disconnected from the AC input signal when the first switch and the second switch are turned ON.
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公开(公告)号：US20160087528A1
公开(公告)日：2016-03-24
申请号：US14489905
申请日：2014-09-18
Applicant: Monolithic Power Systems, Inc.
Inventor： John Fogg , Jian Jiang , Junyong Gong
IPC: H02M3/158
CPC classification number: H02M3/156 , H02M3/1563 , H02M2001/0022
Abstract: A SMPS has a switching circuit and a controller. The switching circuit has an input terminal and an output terminal, and also includes a switch and an inductor, wherein the switching circuit regulates an output voltage at the output terminal based on an input voltage at the input terminal by controlling a switching action of the switch. The controller generates a switching control signal to control the switch, where the switching control signal transits from a first state to a second state when an output signal at the output terminal satisfies a predetermined condition, and the switching control signal transits from the second state to the first state after a period of time. And a switching frequency of the switch and an inductor ripple current of the inductor both vary with the input voltage.
Abstract translation: SMPS具有开关电路和控制器。 开关电路具有输入端子和输出端子，并且还包括开关和电感器，其中开关电路通过控制开关的开关动作，基于输入端子处的输入电压来调节输出端子处的输出电压 。 控制器产生开关控制信号以控制开关，其中当输出端子处的输出信号满足预定条件时，开关控制信号从第一状态转换到第二状态，并且开关控制信号从第二状态转换到 一段时间后的第一个状态。 并且开关的开关频率和电感器的电感纹波电流都随输入电压而变化。
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公开(公告)号：US11770121B2
公开(公告)日：2023-09-26
申请号：US17229463
申请日：2021-04-13
Applicant: Monolithic Power Systems, Inc.
Inventor： Jian Jiang , Di Han , NaiXing Kuang , Zhijun Ye
IPC: H03K17/0812 , H03K17/0412
CPC classification number: H03K17/0812 , H03K17/0412 , H03K2217/0036
Abstract: A power switch device driver with energy recovery is discussed. The power switch device adopts four switches and one inductor with appropriate control to insure the switching speed and save the power loss.
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公开(公告)号：US11374486B2
公开(公告)日：2022-06-28
申请号：US17037388
申请日：2020-09-29
Applicant: Monolithic Power Systems, Inc.
Inventor： Bo Zhou , Ming Lu , Pengjie Lai , Jian Jiang
IPC: H02M1/36 , G06F1/32 , G06F1/3206 , G06F1/3237
Abstract: A power supply having at least one PMIC provides flexible control to the power manage systems. The PMIC has an enable pin configured to receive a control signal, and a clock pin configured to generate and/or receive a series of clock pulses, so as to facilitate the operation of the PMIC.
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公开(公告)号：US10892637B2
公开(公告)日：2021-01-12
申请号：US16372391
申请日：2019-04-01
Applicant: Monolithic Power Systems, Inc.
Inventor： Ming Lu , Pengjie Lai , Jian Jiang
Abstract: A power supply covering both power sharing and power backup functions run in a more efficient and flexible way. The power supply adopts a power sharing converter coupled between a first bus terminal and a second bus terminal, so that if one of the bus terminals provides insufficient power, the other bus terminal kicks in by way of the power sharing converter to provide power support. In addition, a storage capacitor may also kick in to provide power support if one of the bus terminals provide insufficient power via or not via the power sharing converter.
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