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公开(公告)号：US10826391B2
公开(公告)日：2020-11-03
申请号：US16291884
申请日：2019-03-04
Applicant: Licon Technology Corporation
Inventor： William Reed , Andrew Davis , Matthew Whitlock , Brent Dae Hermsmeier
Abstract: A power supply for a smooth power output level transitioning includes an energy storage circuit for temporarily storing electric energy for driving a load, a semiconductor switch for pulse-width modulation (PWM) switching, and a digital PWM controller. The digital PWM controller generates a driving waveform to regulate on and off status of the semiconductor switch. The driving waveform toggles between PWM periods of a first type and PWM periods of a second type, and gradually adjusts a ratio of numbers of the PWM periods of the two types over time. The toggling driving waveform achieves one or more intermediate finer power output level that cannot be realized by a single type of PWM period with an intermediate duty cycle, due to the minimum item unit of the driving waveform limited by a clock rate of the digital PWM controller.
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公开(公告)号：US20190199208A1
公开(公告)日：2019-06-27
申请号：US16291884
申请日：2019-03-04
Applicant: Licon Technology Corporation
Inventor： William Reed , Andrew Davis , Matthew Whitlock , Brent Dae Hermsmeier
Abstract: A power supply for a smooth power output level transitioning includes an energy storage circuit for temporarily storing electric energy for driving a load, a semiconductor switch for pulse-width modulation (PWM) switching, and a digital PWM controller. The digital PWM controller generates a driving waveform to regulate on and off status of the semiconductor switch. The driving waveform toggles between PWM periods of a first type and PWM periods of a second type, and gradually adjusts a ratio of numbers of the PWM periods of the two types over time. The toggling driving waveform achieves one or more intermediate finer power output level that cannot be realized by a single type of PWM period with an intermediate duty cycle, due to the minimum item unit of the driving waveform limited by a clock rate of the digital PWM controller.
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Patent Agency Ranking
公开(公告)号：US20210175799A1
公开(公告)日：2021-06-10
申请号：US17087276
申请日：2020-11-02
Applicant: Licon Technology Corporation
Inventor： William Reed , Andrew Davis , Matthew Whitlock , Brent Dae Hermsmeier
Abstract: A power supply for a smooth power output level transitioning includes an energy storage circuit for temporarily storing electric energy for driving a load, a semiconductor switch for pulse-width modulation (PWM) switching, and a digital PWM controller. The digital PWM controller generates a driving waveform to regulate on and off status of the semiconductor switch. The driving waveform toggles between PWM periods of a first type and PWM periods of a second type, and gradually adjusts a ratio of numbers of the PWM periods of the two types over time. The toggling driving waveform achieves one or more intermediate finer power output level that cannot be realized by a single type of PWM period with an intermediate duty cycle, due to the minimum item unit of the driving waveform limited by a clock rate of the digital PWM controller.
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公开(公告)号：US20170055321A1
公开(公告)日：2017-02-23
申请号：US15098613
申请日：2016-04-14
Applicant: Licon Technology Corporation
Inventor： James A. Allen, JR. , Andrew Davis , Matthew Whitlock , Brent Dae Hermsmeier
CPC classification number: H05B33/0815 , H02M1/4208 , H02M1/4225 , H02M1/4258 , H02M3/33507 , H02M2001/007 , H02M2001/008 , Y02B20/346 , Y02B70/126
Abstract: A complementary converter is a switch mode converter circuit that uses one pulse-width modulation (PWM) controller and one power MOSFET to run a two-stage power-factor-corrected (PFC) power supply. The two-stage power-factor-corrected power supply can include a power-factor-corrected boost converter, and a DC-to-DC converter (either step-up or step-down). The DC-to-DC converter can be, e.g., a Flyback, Forward, Cuk, or Buck Converter. The complementary converter circuit includes a voltage input section that takes a universal VAC input and rectifies the input. Then the PFC boost converter boosts the rectified half-cycle DC to a DC line at a higher voltage. The complementary converter circuit further includes an integrated circuit with the power-factor-correction and PWM switching capabilities to control the converters. The DC-to-DC converter brings the voltage down to an appropriate level for the final load (e.g., LEDs).
Abstract translation: 互补转换器是采用一个脉冲宽度调制（PWM）控制器和一个功率MOSFET来运行两级功率因数校正（PFC）电源的开关模式转换器电路。 两级功率因数校正电源可以包括功率因数校正升压转换器和DC-DC转换器（升压或降压）。 DC-DC转换器可以是例如反激式，前向，Cuk或降压转换器。 互补转换器电路包括具有通用VAC输入并对输入进行整流的电压输入部。 然后，PFC升压转换器将整流的半周期DC升压到更高电压的直流线路。 互补转换器电路还包括具有功率因数校正和PWM切换功能以控制转换器的集成电路。 DC-DC转换器将电压降低到最终负载（例如，LED）的适当水平。
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公开(公告)号：US09699842B2
公开(公告)日：2017-07-04
申请号：US15098613
申请日：2016-04-14
Applicant: Licon Technology Corporation
Inventor： James A. Allen, Jr. , Andrew Davis , Matthew Whitlock , Brent Dae Hermsmeier
CPC classification number: H05B33/0815 , H02M1/4208 , H02M1/4225 , H02M1/4258 , H02M3/33507 , H02M2001/007 , H02M2001/008 , Y02B20/346 , Y02B70/126
Abstract: A complementary converter is a switch mode converter circuit that uses one pulse-width modulation (PWM) controller and one power MOSFET to run a two-stage power-factor-corrected (PFC) power supply. The two-stage power-factor-corrected power supply can include a power-factor-corrected boost converter, and a DC-to-DC converter (either step-up or step-down). The DC-to-DC converter can be, e.g., a Flyback, Forward, Cuk, or Buck Converter. The complementary converter circuit includes a voltage input section that takes a universal VAC input and rectifies the input. Then the PFC boost converter boosts the rectified half-cycle DC to a DC line at a higher voltage. The complementary converter circuit further includes an integrated circuit with the power-factor-correction and PWM switching capabilities to control the converters. The DC-to-DC converter brings the voltage down to an appropriate level for the final load (e.g., LEDs).
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公开(公告)号：US10263515B2
公开(公告)日：2019-04-16
申请号：US15098616
申请日：2016-04-14
Applicant: Licon Technology Corporation
Inventor： William Reed , Andrew Davis , Matthew Whitlock , Brent Dae Hermsmeier
Abstract: A power supply for a smooth power output level transitioning includes an energy storage circuit for temporarily storing electric energy for driving a load, a semiconductor switch for pulse-width modulation (PWM) switching, and a digital PWM controller. The digital PWM controller generates a driving waveform to regulate on and off status of the semiconductor switch. The driving waveform toggles between PWM periods of a first type and PWM periods of a second type, and gradually adjusts a ratio of numbers of the PWM periods of the two types over time. The toggling driving waveform achieves one or more intermediate finer power output level that cannot be realized by a single type of PWM period with an intermediate duty cycle, due to the minimum item unit of the driving waveform limited by a clock rate of the digital PWM controller.
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公开(公告)号：US20170302170A1
公开(公告)日：2017-10-19
申请号：US15098616
申请日：2016-04-14
Applicant: Licon Technology Corporation
Inventor： William Reed , Andrew Davis , Matthew Whitlock , Brent Dae Hermsmeier
IPC: H02M3/156
CPC classification number: H02M3/156 , H02M2001/0012 , H03K7/08 , H05B33/0815 , Y02B20/346
Abstract: A power supply for a smooth power output level transitioning includes an energy storage circuit for temporarily storing electric energy for driving a load, a semiconductor switch for pulse-width modulation (PWM) switching, and a digital PWM controller. The digital PWM controller generates a driving waveform to regulate on and off status of the semiconductor switch. The driving waveform toggles between PWM periods of a first type and PWM periods of a second type, and gradually adjusts a ratio of numbers of the PWM periods of the two types over time. The toggling driving waveform achieves one or more intermediate finer power output level that cannot be realized by a single type of PWM period with an intermediate duty cycle, due to the minimum item unit of the driving waveform limited by a clock rate of the digital PWM controller.
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