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公开(公告)号：US08674620B2
公开(公告)日：2014-03-18
申请号：US12956429
申请日：2010-11-30
IPC分类号： H05B41/16
CPC分类号： H05B33/0827 , H05B33/0857
摘要： A driver circuit includes a buck converter associated with each LED chain for supplying a load current thereto. The buck converter receives an input voltage and is configured to provide a supply voltage to the associated LED chain such that the resulting load current of the LED chain matches at least approximately a predefined reference current value. The driver circuit further includes a switching converter that receives a driver supply voltage from a power supply and provides, as an output voltage, the input voltage for the buck converters. The switching converter is configured to provide an input voltage to the buck converters such that the maximum of the ratios between the input voltage and the supply voltages provided to the LED chains matches a predefined tolerance reference ratio.
摘要翻译： 驱动器电路包括与每个LED链相关联的降压转换器，用于向其提供负载电流。 降压转换器接收输入电压并且被配置为向相关联的LED链提供电源电压，使得LED链的所得负载电流与至少近似预定的参考电流值相匹配。 驱动器电路还包括开关转换器，其接收来自电源的驱动器电源电压，并提供降压转换器的输入电压作为输出电压。 开关转换器被配置为向降压转换器提供输入电压，使得提供给LED链的输入电压和电源电压之间的最大比率匹配预定义的公差参考比。
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公开(公告)号：US20120133299A1
公开(公告)日：2012-05-31
申请号：US12956429
申请日：2010-11-30
IPC分类号： H05B41/36
CPC分类号： H05B33/0827 , H05B33/0857
摘要： A driver circuit includes a buck converter associated with each LED chain for supplying a load current thereto. The buck converter receives an input voltage and is configured to provide a supply voltage to the associated LED chain such that the resulting load current of the LED chain matches at least approximately a predefined reference current value. The driver circuit further includes a switching converter that receives a driver supply voltage from a power supply and provides, as an output voltage, the input voltage for the buck converters. The switching converter is configured to provide an input voltage to the buck converters such that the maximum of the ratios between the input voltage and the supply voltages provided to the LED chains matches a predefined tolerance reference ratio.
摘要翻译： 驱动器电路包括与每个LED链相关联的降压转换器，用于向其提供负载电流。 降压转换器接收输入电压并且被配置为向相关联的LED链提供电源电压，使得LED链的所得负载电流与至少近似预定的参考电流值相匹配。 驱动器电路还包括开关转换器，其接收来自电源的驱动器电源电压，并提供降压转换器的输入电压作为输出电压。 开关转换器被配置为向降压转换器提供输入电压，使得提供给LED链的输入电压和电源电压之间的最大比率匹配预定义的公差参考比。
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3.发明授权Reverse voltage protected integrated circuit arrangement for multiple supply lines 有权用于多个电源线的反向电压保护集成电路布置公开(公告)号：US08013475B2
公开(公告)日：2011-09-06
申请号：US11965501
申请日：2007-12-27
IPC分类号： H01H83/00
CPC分类号： H01L27/0266 , H01L27/0716 , Y10T307/858
摘要： An integrated circuit arrangement includes a semiconductor body having a substrate and at least one substrate terminal. At least one semiconductor component is integrated in the semiconductor body and is connected between a first supply terminal and a second supply terminal. The first supply potential is higher than the second supply potential during normal operation of the semiconductor component and the first supply potential is lower than the second supply potential during reverse voltage operation of the semiconductor component. A switch is adapted to couple at least one of the substrate terminals to the first supply terminal during reverse voltage operation and to the second supply terminal during normal operation.
摘要翻译： 集成电路装置包括具有衬底和至少一个衬底端子的半导体本体。 至少一个半导体部件被集成在半导体本体中并连接在第一供电端子和第二供电端子之间。 第一电源电位在半导体元件的正常工作期间高于第二电源电位，并且第一电源电位低于半导体组件的反向电压操作期间的第二电源电位。 开关适于在反向电压操作期间将至少一个衬底端子耦合到第一电源端子，并在正常操作期间将第二电源端子耦合到第二电源端子。
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公开(公告)号：US08299729B2
公开(公告)日：2012-10-30
申请号：US12564362
申请日：2009-09-22
IPC分类号： H05B41/36
CPC分类号： H05B33/0818 , H05B33/0857 , H05B33/086
摘要： In one embodiment, a light dimming module is disclosed. The light dimming module has a dimming engine coupled to a digital input interface and an output interface. The dimming engine is configured to provide a N-segment piecewise linear exponential digital control signal, and the output interface is configured to control the intensity of a light source.
摘要翻译： 在一个实施例中，公开了一种调光模块。 光调光模块具有耦合到数字输入接口和输出接口的调光引擎。 调光引擎被配置为提供N段分段线性指数数字控制信号，并且输出接口被配置为控制光源的强度。
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5.发明申请Circuit arrangement with at least two semiconductor switches and a central overvoltage protection 有权具有至少两个半导体开关和中心过电压保护的电路布置公开(公告)号：US20070103830A1
公开(公告)日：2007-05-10
申请号：US11364835
申请日：2006-02-28
IPC分类号： H02H9/04
CPC分类号： H03K17/0822 , H03K17/0828
摘要： A circuit arrangement includes a first semiconductor switch and at least one second semiconductor switch, each of them having a control terminal and a first and second load terminal, and with an overvoltage protection arrangement for the at least two semiconductor switches. The overvoltage protection arrangement comprises a voltage limiting unit with a first and a second terminal, whose first terminal is connected to a central circuit node, whose second terminal is connected to a terminal for a reference potential, and which is configured so that it conducts current when a threshold voltage is applied between the first and second load terminals. The central circuit node is coupled to the first load terminals of the semiconductor switches. The overvoltage protection arrangement further comprises a first actuating circuit for the first semiconductor switch and a second actuating circuit for the at least one second semiconductor switch.
摘要翻译： 电路装置包括第一半导体开关和至少一个第二半导体开关，它们中的每一个具有控制端子和第一和第二负载端子，并具有至少两个半导体开关的过电压保护装置。 过电压保护装置包括具有第一和第二端子的电压限制单元，其第一端子连接到中心电路节点，其第二端子连接到用于参考电位的端子，并且被配置为使其导通电流 当在第一和第二负载端子之间施加阈值电压时。 中心电路节点耦合到半导体开关的第一负载端子。 过电压保护装置还包括用于第一半导体开关的第一致动电路和用于至少一个第二半导体开关的第二驱动电路。
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公开(公告)号：US20080224547A1
公开(公告)日：2008-09-18
申请号：US11724606
申请日：2007-03-15
IPC分类号： H01H83/18
CPC分类号： H01L27/0248 , Y10T307/858
摘要： An integrated circuit arrangement is disclosed which comprises a semiconductor body having a substrate and at least one substrate terminal, at least one semiconductor component integrated in the semiconductor body and being connected between a first supply terminal providing a first supply potential and a second supply terminal providing a second supply potential, and switching means adapted for connecting at least one of said substrate terminals to either the first or to the second supply terminal dependent on which supply terminal provides the lower supply potential.
摘要翻译： 公开了一种集成电路装置，其包括具有基板和至少一个基板端子的半导体本体，集成在半导体本体中的至少一个半导体元件，并连接在提供第一电源电位的第一电源端子和提供 第二供电电位以及适于将至少一个所述衬底端子连接到第一或第二电源端子的开关装置，取决于哪个电源端子提供较低的电源电位。
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公开(公告)号：US20080002324A1
公开(公告)日：2008-01-03
申请号：US11732129
申请日：2007-04-02
IPC分类号： H02H9/04
CPC分类号： H03K17/122 , H03K17/0822 , H03K17/567 , H03K17/687
摘要： A circuit arrangement includes plural semiconductor switches, at least one overvoltage protection arrangement and a coupling circuit. Each of a first semiconductor switch and a second semiconductor switch has a control terminal and first and second load terminals. The at least one overvoltage protection arrangement provides overvoltage protection to the semiconductor switches. The coupling circuit is operable to selectively couple the control terminals of at least two of the at least two semiconductor switches.
摘要翻译： 电路装置包括多个半导体开关，至少一个过电压保护装置和耦合电路。 第一半导体开关和第二半导体开关中的每一个具有控制端子和第一和第二负载端子。 至少一个过电压保护装置为半导体开关提供过电压保护。 耦合电路可操作以选择性地耦合至少两个半导体开关中的至少两个的控制端子。
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公开(公告)号：US20110068689A1
公开(公告)日：2011-03-24
申请号：US12564362
申请日：2009-09-22
CPC分类号： H05B33/0818 , H05B33/0857 , H05B33/086
摘要： In one embodiment, a light dimming module is disclosed. The light dimming module has a dimming engine coupled to a digital input interface and an output interface. The dimming engine is configured to provide a N-segment piecewise linear exponential digital control signal, and the output interface is configured to control the intensity of a light source.
摘要翻译： 在一个实施例中，公开了一种调光模块。 光调光模块具有耦合到数字输入接口和输出接口的调光引擎。 调光引擎被配置为提供N段分段线性指数数字控制信号，并且输出接口被配置为控制光源的强度。
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9.发明授权Circuit arrangement with at least two semiconductor switches and a central overvoltage protection 有权具有至少两个半导体开关和中心过电压保护的电路布置公开(公告)号：US07411770B2
公开(公告)日：2008-08-12
申请号：US11364835
申请日：2006-02-28
IPC分类号： H02H9/04
CPC分类号： H03K17/0822 , H03K17/0828
摘要： A circuit arrangement includes a first semiconductor switch and at least one second semiconductor switch, each of them having a control terminal and a first and second load terminal, and with an overvoltage protection arrangement for the at least two semiconductor switches. The overvoltage protection arrangement comprises a voltage limiting unit with a first and a second terminal, whose first terminal is connected to a central circuit node, whose second terminal is connected to a terminal for a reference potential, and which is configured so that it conducts current when a threshold voltage is applied between the first and second load terminals. The central circuit node is coupled to the first load terminals of the semiconductor switches. The overvoltage protection arrangement further comprises a first actuating circuit for the first semiconductor switch and a second actuating circuit for the at least one second semiconductor switch.
摘要翻译： 电路装置包括第一半导体开关和至少一个第二半导体开关，它们中的每一个具有控制端子和第一和第二负载端子，并具有至少两个半导体开关的过电压保护装置。 过电压保护装置包括具有第一和第二端子的电压限制单元，其第一端子连接到中心电路节点，其第二端子连接到用于参考电位的端子，并且被配置为使其导通电流 当在第一和第二负载端子之间施加阈值电压时。 中心电路节点耦合到半导体开关的第一负载端子。 过电压保护装置还包括用于第一半导体开关的第一致动电路和用于至少一个第二半导体开关的第二驱动电路。
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