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公开(公告)号：US10103620B1
公开(公告)日：2018-10-16
申请号：US15788599
申请日：2017-10-19
发明人： Wei-Hsin Wei
IPC分类号： G06F1/20 , H02M3/04 , G09G3/3225
摘要： In a SIBO boost converter, an inductor current flows from an input to ground through an inductor and a first switch to energize the inductor. The inductor releases energy stored thereof and the inductor current flows from the inductor to ground via a second switch and a first capacitor to charge the first capacitor and to produce a first positive output thereon. The inductor is energized by the input and the inductor current flows from the inductor to a third capacitor through two third switches to charge the third capacitor and to produce a second positive output thereon. The third capacitor is discharged through two fourth switches to charge a second capacitor of the capacitors to produce a negative output thereon. Timing for producing the second positive output is non-overlapped with timing for producing the negative output.
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2.发明公开公开(公告)号：US20240283246A1
公开(公告)日：2024-08-22
申请号：US18122443
申请日：2023-03-16
发明人： Wei-Hsin WEI , Teng-Hung CHANG , Hsueh-Chun LIN , Cheng-Lien WANG
摘要： A rapid shutdown device (RSD) includes: a logic-and-analog circuit; an RSD ID storage for storing an unique RSD ID; a control command receiving circuit for receiving and decode a control command including a combination of an all-RSD turn-on command, a single-RSD turn-on command and a to-be-tested RSD ID; a switch circuit connected to the logic-and-analog circuit; and a bypass circuit connected between two output terminals of the RSD. When the switch circuit is turned off, the bypass circuit is turned on. The logic-and-analog circuit controls the on/off state of the switch circuit according to a decoding result of the control command receiving circuit and the unique RSD ID stored in the RSD ID storage. When the switch circuit is turned on, an output voltage received from a photovoltaic module coupled to the RSD is outputted via the RSD.
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公开(公告)号：US20220416661A1
公开(公告)日：2022-12-29
申请号：US17358792
申请日：2021-06-25
发明人： Wei-Chun CHENG , William CHEN , Wei-Hsin WEI
摘要： Provided is a SIMBO buck-boost inverting converter including: a power stage for receiving an input voltage to generate first and positive output voltages and a negative output voltage, the power stage including a plurality of switches and an inductor; a control circuit for generating a plurality of control voltages based on the first and the second positive output voltages, the negative output voltage and a current of the inductor; an energy generation and distribution circuit for generating a plurality of duty cycles based on the control voltages; and a logic control and gate driving circuit for generating a plurality of switch control signals for controlling the switches of the power stage based on the duty cycles; wherein the control circuit and the energy generation and distribution circuit feedback-control and adjust the duty cycles to adjust a balance between an input energy and an output energy.
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公开(公告)号：US20230070905A1
公开(公告)日：2023-03-09
申请号：US17467013
申请日：2021-09-03
发明人： Wen-Chia PI , Wei-Lun HSIEH , Wei-Hsin WEI
摘要： A SIMO power converter includes: a power stage having an inductor and a plurality of switches, the power stage generating a plurality of output voltages from an input voltage; a control circuit, the control circuit controlling the SIMO power converter to be operated at either an OPDC (Ordered Power Distributive Control) mode or a Peak Current Control (PCC) mode according with different loading conditions, the control circuit further generating a plurality of duty cycles based on an inductor current of the inductor and the plurality of output voltages; and a logic control and gate driver for generating a plurality of switch control signals based on the duty cycles from the control circuit, the plurality of switch control signals for controlling the plurality of switches of the power stage.
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公开(公告)号：US11038354B2
公开(公告)日：2021-06-15
申请号：US16385095
申请日：2019-04-16
发明人： Wei-Hsin Wei , Teng-Hung Chang
摘要： A rapid shutdown (RSD) control circuit includes: a RSD controller having first and second terminals coupled to first and second terminals of a photovoltaic cell module, respectively; a transistor having a gate coupled to the RSD controller, a source coupled to the second terminal of the photovoltaic cell module, and a drain; and a diode coupled between the drain of the transistor and the first terminal of the photovoltaic cell module. In a normal state, controlled by the RSD controller, the transistor is controlled to have a first impedance state and the photovoltaic cell module outputs an output power to an inverter. In a shutdown state, controlled by the RSD controller, the transistor and the diode are controlled as a variable impedance, and thus a voltage between the first terminal and the second terminal of the photovoltaic cell module is regulated to a desired voltage.
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公开(公告)号：US20200335976A1
公开(公告)日：2020-10-22
申请号：US16385095
申请日：2019-04-16
发明人： Wei-Hsin WEI , Teng-Hung CHANG
摘要： A rapid shutdown (RSD) control circuit includes: a RSD controller having first and second terminals coupled to first and second terminals of a photovoltaic cell module, respectively; a transistor having a gate coupled to the RSD controller, a source coupled to the second terminal of the photovoltaic cell module, and a drain; and a diode coupled between the drain of the transistor and the first terminal of the photovoltaic cell module. In a normal state, controlled by the RSD controller, the transistor is controlled to have a first impedance state and the photovoltaic cell module outputs an output power to an inverter. In a shutdown state, controlled by the RSD controller, the transistor and the diode are controlled as a variable impedance, and thus a voltage between the first terminal and the second terminal of the photovoltaic cell module is regulated to a desired voltage.
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公开(公告)号：US20230170805A1
公开(公告)日：2023-06-01
申请号：US17581727
申请日：2022-01-21
发明人： Wei-Hsin WEI , Wei-Chun CHENG
CPC分类号： H02M3/1582 , H02M1/08 , H02M1/0009 , H02M1/009 , H02M3/157
摘要： A DC-DC converter includes: a power stage having an inductor and a plurality of switches, for generating a plurality of output voltages from an input voltage; a control circuit, for performing time multiplexing constant charge transfer control having valley current control by transferring electrical energy from the input voltage to the plurality of output voltages sequentially one-by-one, further generating a control voltage to control respective output charges of the plurality of output voltages as respective constant predetermined values, and response to all load currents for making input power and output power balance by automatically generating a valley current so that the DC-DC converter switches between DCM and CCM; and a logic control and gate driver for generating a plurality of switch control signals, the plurality of switch control signals for controlling the plurality of switches of the power stage.
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公开(公告)号：US20200235658A1
公开(公告)日：2020-07-23
申请号：US16396110
申请日：2019-04-26
发明人： Yi-Sheng CHEN , Yu-Shen LIN , Wei-Hsin WEI
摘要： An operation method for a DC/DC converter includes: using a power stage for converting a DC input voltage into a DC output voltage, the power stage including an inductor; detecting whether the DC output voltage has an overshoot when the DC/DC converter is switched from a heavy loading into a light loading; when it is determined that the DC output voltage has the overshoot, forcing the DC/DC converter for additionally maintaining at a force continuous conduction mode (CCM) and thus discharging the DC output voltage by the inductor, and controlling the DC/DC converter switching from the force CCM into a discontinuous conductor mode (DCM).
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公开(公告)号：US10291126B1
公开(公告)日：2019-05-14
申请号：US16164755
申请日：2018-10-18
发明人： Wei-Hsin Wei , Yi-Cheng Hsu , Wei-Lun Hsieh
摘要： A single inductor multiple-output DC-DC converter includes an inductor coupled to a first input switch and a second input switch to store energy from supply source, wherein the first input switch is coupled to an input supply node, and the second input switch is coupled to ground, the first and the second switches controlling current through the inductor; a plurality of output switches, each output switch coupled to a common inductor node and to a corresponding output supply node, each of the output supply node having a voltage converted from an input voltage received at an input supply node; a freewheel switch coupled between the common inductor node and ground; a control circuit receiving a sensed inductor current and a plurality of feedback signals indicating error signals between output voltages and their corresponding reference voltages, the control circuit being configured to control timing and charging current of the inductor.
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公开(公告)号：US10014778B1
公开(公告)日：2018-07-03
申请号：US15869355
申请日：2018-01-12
发明人： Wei-Hsin Wei , Yu-Shen Lin
CPC分类号： H02M3/1582 , H02M1/08 , H02M3/155 , H02M3/157 , H02M2001/0032 , H02M2003/1557 , Y02B70/16
摘要： Provided is a control method for controlling a SIBO buck-boost converter including a first switch coupled between an input and a first node, a second switch coupled between the first node and GROUND, a third switch coupled between a second node and GROUND, a fourth switch coupled between the second node and a first output node for outputting the positive output, a fifth switch coupled between the first node and a second output node for outputting the negative output, and an inductor coupled between the first node and the second node. The first and the third switches are turned on to energize the inductor. The first and the fourth switches are turned on to generate a positive output. The third and the fifth switches are turned on to generate a negative output.
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