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    • 2. 发明申请
    • Ballast for a discharge lamp
    • 镇流器放电灯
    • US20050212457A1
    • 2005-09-29
    • US10507173
    • 2003-03-06
    • Ulrich KlipsteinNorbert UnznerWilfried Brauckmann
    • Ulrich KlipsteinNorbert UnznerWilfried Brauckmann
    • H05B1/00H01J1/00H05B41/288H05B41/38H05B37/02
    • H05B41/2887H05B41/2881H05B41/382Y02B20/202Y02B20/204
    • The invention relates to ballast for a discharge lamp (16), comprising a direct-current supply phase (2), semiconductor switches (10, 11), operated at a high-frequency clock frequency for modifying the direction of current through the discharge lamp (16), an ignition transformer (15), which can be supplied with the direct current of the direct-current supply phase (2) via a series capacitor (14) and a choke inductance (17) that is connected to an electrode of the discharge of the discharge lamp (16), said electrode not being connected to the ignition transformer (15). To increase the ignition reliability of the discharge lamp (16), a capacitor (24), connected in series to a switch (23), is connected between a junction point (27) of the series capacitor (14) and ignition transformer (15) on one side and a junction point (26) between the discharge lamp (16) and the choke inductance (17) on the other side, and the capacitor (24) and the choke inductance (17) form a series resonant circuit that is tuned to a higher harmonic of the clock frequency.
    • 本发明涉及一种用于放电灯(16)的镇流器,包括直流电源相位(2),以高频时钟频率工作的半导体开关(10,11),用于改变通过放电灯的电流方向 (16),点火变压器(15),其可以经由串联电容器(14)和扼流圈电感(17)提供直流供电相(2)的直流电流,该扼流圈电感连接到 放电灯(16)的放电,所述电极不连接到点火变压器(15)。 为了提高放电灯(16)的点火可靠性,将串联电容器(14)的点(27)与点火变压器(15)连接的开关(23)串联连接的电容器(24) )和另一侧的放电灯(16)和扼流圈电感(17)之间的接合点(26),电容器(24)和扼流圈电感(17)形成串联谐振电路 调谐到时钟频率的较高谐波。
    • 4. 发明授权
    • Ballast for a discharge lamp
    • 镇流器放电灯
    • US07053564B2
    • 2006-05-30
    • US10507173
    • 2003-03-06
    • Ulrich KlipsteinNorbert UnznerWilfried Brauckmann
    • Ulrich KlipsteinNorbert UnznerWilfried Brauckmann
    • H05B37/02
    • H05B41/2887H05B41/2881H05B41/382Y02B20/202Y02B20/204
    • The invention relates to ballast for a discharge lamp (16), comprising a direct-current supply phase (2), semiconductor switches (10, 11), operated at a high-frequency clock frequency for modifying the direction of current through the discharge lamp (16), an ignition transformer (15), which can be supplied with the direct current of the direct-current supply phase (2) via a series capacitor (14) and a choke inductance (17) that is connected to an electrode of the discharge of the discharge lamp (16), said electrode not being connected to the ignition transformer (15). To increase the ignition reliability of the discharge lamp (16), a capacitor (24), connected in series to a switch (23), is connected between a junction point (27) of the series capacitor (14) and ignition transformer (15) on one side and a junction point (26) between the discharge lamp (16) and the choke inductance (17) on the other side, and the capacitor (24) and the choke inductance (17) form a series resonant circuit that is tuned to a higher harmonic of the clock frequency.
    • 本发明涉及一种用于放电灯(16)的镇流器,包括直流电源相位(2),以高频时钟频率工作的半导体开关(10,11),用于改变通过放电灯的电流方向 (16),点火变压器(15),其可以经由串联电容器(14)和扼流圈电感(17)提供直流供电相(2)的直流电流,该扼流圈电感连接到 放电灯(16)的放电,所述电极不连接到点火变压器(15)。 为了提高放电灯(16)的点火可靠性,将串联电容器(14)的点(27)与点火变压器(15)连接的开关(23)串联连接的电容器(24) )和另一侧的放电灯(16)和扼流圈电感(17)之间的接合点(26),电容器(24)和扼流圈电感(17)形成串联谐振电路 调谐到时钟频率的较高谐波。