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    • 2. 发明申请
    • DIRECT AC DRIVING CIRCUIT AND LUMINAIRE
    • 直接交流驱动电路和灯管
    • WO2017015964A1
    • 2017-02-02
    • PCT/CN2015/085597
    • 2015-07-30
    • TRIDONIC GMBH & CO KGTRIDONIC JENNERSDORF GMBHLIN, Quentin
    • LIN, QuentinBAKK, Istvan
    • H05B37/02
    • H05B33/083
    • A direct AC driving circuit an a luminaire for driving at least one LED (2), the driving circuit comprises a LED string (2') that comprises a series connection of at least two LEDs (2), wherein the LED string (2') is directly powered from a rectified AC mains voltage (4) and a LED string switching unit (1) that is configured to control at least one LED (2) shortening unit (1') that is arranged in parallel to at least one LED of the LED string (2'). The driving circuit comprises means configured to provide a low supply voltage which is also derived from the rectified AC mains voltage (4), wherein the low supply voltage is generated from unutilized voltage of the LED-string (2').
    • 一种用于驱动至少一个LED(2)的照明器的直接AC驱动电路,所述驱动电路包括包括至少两个LED(2)的串联连接的LED串(2'),其中所述LED串(2' )由整流的AC电源电压(4)和LED串开关单元(1)直接供电,LED串开关单元(1)被配置为控制至少一个LED(2)缩短单元(1'),所述缩短单元(1')平行于至少一个LED 的LED串(2')。 驱动电路包括被配置为提供也源自整流AC电源电压(4)的低电源电压的装置,其中低电源电压由LED串(2')的未使用电压产生。
    • 4. 发明申请
    • SWITCHED CONVERTER FOR DRIVING LEDS OR FOR SUPPLYING FURTHER LED CONVERTER STAGE
    • 开关转换器驱动LED或提供进一步的LED转换器舞台
    • WO2017120795A1
    • 2017-07-20
    • PCT/CN2016/070781
    • 2016-01-13
    • TRIDONIC GMBH & CO KGLIN, Quentin
    • LIN, Quentin
    • H05B37/02
    • H05B33/0815H05B33/0851
    • A switched converter (1) for driving LEDs (16) or for supplying a further LED converter stage comprising a switch (2), a control unit (3) for controlling the switch (2), a sensing path with a shunt resistor (4) for sensing a voltage drop at the shunt resistor (4) representing the current through the switch (2) in the closed state of the switch (2), and a feedback path for feeding back a voltage signal to the control unit (3) that represents the voltage drop at the shunt resistor (4) of the sensing path, wherein the control unit (3) is configured to use the voltage signal, which is fed back on the feedback path, to control the clocking of the switch (2), and wherein the switched converter (1) further comprises a voltage scaling unit (5) in the feedback path for scaling the voltage signal, which is fed back on the feedback path, by at least two different scaling factors, or wherein the switched converter (1) further comprises for at least one phase of a mains voltage different mains connection terminals (15) for connecting with the corresponding phase and a voltage scaling unit (5) in the feedback path for scaling the voltage signal, which is fed back on the feedback path, by at least two different scaling factors depending on to which mains connection terminal (15) the phase is connected, or a voltage scaling unit in the sensing path for scaling the voltage drop at the shunt resistor unit by at least two different scaling factors depending on to which mains connection terminal (15) the phase is connected.
    • 用于驱动LED(16)或用于提供另一LED转换器级的开关转换器(1)包括开关(2),用于控制开关(2)的控制单元(3),用于控制开关 (2)的关闭状态下用于检测表示通过开关(2)的电流的分流电阻器(4)处的电压降的分流电阻器(4)的反馈路径,以及用于反馈电压 信号传输到控制单元(3),所述控制单元(3)表示所述感测路径的所述分流电阻器(4)处的电压降,其中所述控制单元(3)被配置为使用在所述反馈路径上反馈的所述电压信号来 控制开关(2)的时钟,并且其中开关转换器(1)还包括反馈路径中的电压缩放单元(5),用于将在反馈路径上反馈的电压信号缩放至少两个 不同的缩放因子,或者其中对于干线电压的至少一个相位,开关转换器(1)还包括不同的 (15),用于与所述相应相位连接;以及反馈路径中的电压缩放单元(5),用于将反馈路径上反馈的电压信号缩放至少两个不同的缩放因子,这取决于 所述相连接的所述主干连接端子(15)或所述感测路径中的电压缩放单元,用于根据所述相的哪个电源连接端子(15)将所述分流电阻单元处的电压降缩放至少两个不同的缩放因子 已连接。