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公开(公告)号：US20140368128A1
公开(公告)日：2014-12-18
申请号：US14344203
申请日：2012-09-28
发明人： Reinhold Elferich , Toni Lopez
IPC分类号： H05B33/08
CPC分类号： H05B33/0815 , H02J7/345 , H02M1/15 , H05B33/0809 , H05B37/02
摘要： The present invention relates to an active capacitor circuit (40) for use in a driver device for driving a load (22), in particular an LED unit comprising one or more LEDs (23). Further, the present invention relates to a driver device comprising such an active capacitor circuit. The proposed active capacitor circuit comprises coupling terminals (41, 42) for providing a drive voltage (vD) and/or drive current (iD) for driving a load (22) to be coupled between said coupling terminals (41, 42), an output power stage (50) coupled between said coupling terminals (41, 42) for converting said periodic current (iA) into said drive current (iD), a low frequency capacitor (46) coupled between a capacitor output terminal (48) of said output power stage (50) and a coupling terminal (42), and a control unit (60) for controlling said output power stage (50) by use of a control signal (Sd) obtained from a feedback of the drive voltage (vD), a capacitor voltage (vC) across said low frequency capacitor (46) and/or a capacitor current (iC) through said low frequency capacitor (46).
摘要翻译： 本发明涉及用于驱动负载（22）的驱动器装置中的有源电容器电路（40），特别是包括一个或多个LED（23）的LED单元。 此外，本发明涉及包括这种有源电容电路的驱动器装置。 所提出的有源电容电路包括用于提供用于驱动耦合在所述耦合端子（41,42）之间的负载（22）的驱动电压（vD）和/或驱动电流（iD）的耦合端子（41,42）， 输出功率级（50），其耦合在所述耦合端子（41,42）之间，用于将所述周期性电流（iA）转换成所述驱动电流（iD）;低频电容器（46），耦合在所述电容器输出端 输出功率级（50）和耦合端子（42）;以及控制单元（60），用于通过使用从驱动电压（vD）的反馈获得的控制信号（Sd）来控制所述输出功率级（50） ，所述低频电容器（46）之间的电容电压（vC）和/或通过所述低频电容器（46）的电容器电流（iC）。
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2.发明授权Driver device and driving method for driving a load, in particular an LED unit 有权用于驱动负载的驱动器装置和驱动方法，特别是LED单元公开(公告)号：US09363856B2
公开(公告)日：2016-06-07
申请号：US14433059
申请日：2013-10-16
CPC分类号： H05B33/0815 , H05B33/0818 , Y02B20/346
摘要： The present invention relates to a driver device (10) for driving a load (18), in particular an LED (18) unit having one or more LEDs, comprising input terminals (14, 16) for connecting the driver device (10) to a voltage supply (12) and for receiving an input voltage (V10) from the voltage supply (12), an output terminal for connecting the driver device (10) to the load (18), an converter unit (24) for converting a drive voltage to an output (V20) voltage for powering the load (18), a switching unit (20, 22) connected to the input terminals (14, 16) for providing different voltage levels as the drive voltage to the converter unit (24), and a control unit (28) for controlling the switching unit (20, 22) on the basis of an electrical converter signal (V12; V13; I12; I13) measured at a member (30, 36) of the converter unit (24) and a reference signal (Vth) having an alternating component to provide an out put signal (V20) having an alternating signal component on the basis of the alternating component of the reference signal (Vth).
摘要翻译： 本发明涉及用于驱动负载（18）的驱动器装置（10），特别地涉及具有一个或多个LED的LED（18）单元，包括用于将驱动器装置（10）连接到 电压源（12），用于接收来自电压源（12）的输入电压（V10）;用于将驱动器装置（10）连接到负载（18）的输出端子;转换器单元（24） 驱动电压到用于为负载（18）供电的输出（V20）电压;连接到输入端子（14,16）的开关单元（20,22），用于提供不同的电压电平作为到转换器单元（24）的驱动电压 ）和控制单元（28），用于基于在转换器单元的构件（30,36）处测量的电转换器信号（V12; V13; I12; I13）来控制开关单元（20,22） 24）和具有交替分量的参考信号（Vth），以基于交替信号提供具有交替信号分量的输出信号（V20） 参考信号的Vth分量（Vth）。
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公开(公告)号：US09258858B2
公开(公告)日：2016-02-09
申请号：US14344203
申请日：2012-09-28
发明人： Reinhold Elferich , Toni Lopez
CPC分类号： H05B33/0815 , H02J7/345 , H02M1/15 , H05B33/0809 , H05B37/02
摘要： The present invention relates to an active capacitor circuit (40) for use in a driver device for driving a load (22), in particular an LED unit comprising one or more LEDs (23). Further, the present invention relates to a driver device comprising such an active capacitor circuit. The proposed active capacitor circuit comprises coupling terminals (41, 42) for providing a drive voltage (vD) and/or drive current (iD) for driving a load (22) to be coupled between said coupling terminals (41, 42), an output power stage (50) coupled between said coupling terminals (41, 42) for converting said periodic current (iA) into said drive current (iD), a low frequency capacitor (46) coupled between a capacitor output terminal (48) of said output power stage (50) and a coupling terminal (42), and a control unit (60) for controlling said output power stage (50) by use of a control signal (Sd) obtained from a feedback of the drive voltage (vD), a capacitor voltage (vC) across said low frequency capacitor (46) and/or a capacitor current (iC) through said low frequency capacitor (46).
摘要翻译： 本发明涉及用于驱动负载（22）的驱动器装置中的有源电容器电路（40），特别是包括一个或多个LED（23）的LED单元。 此外，本发明涉及包括这种有源电容电路的驱动器装置。 所提出的有源电容电路包括用于提供用于驱动耦合在所述耦合端子（41,42）之间的负载（22）的驱动电压（vD）和/或驱动电流（iD）的耦合端子（41,42）， 输出功率级（50），其耦合在所述耦合端子（41,42）之间，用于将所述周期性电流（iA）转换成所述驱动电流（iD）;低频电容器（46），耦合在所述电容器输出端 输出功率级（50）和耦合端子（42）;以及控制单元（60），用于通过使用从驱动电压（vD）的反馈获得的控制信号（Sd）来控制所述输出功率级（50） ，所述低频电容器（46）之间的电容电压（vC）和/或通过所述低频电容器（46）的电容器电流（iC）。
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